32K Followers, 142 Following, 367 Posts - See Instagram photos and videos from Green Building Advisor (@greenbuildingadvisor)Older homes often lack bathroom exhaust fans. In the old days, if the bathroom was smelly or steamy, you were supposed to open a window to air it out. This isn’t a very logical ventilation method, especially when temperatures are below zero, or when the weather is 90°F and humid. Yet this time-honored method of …IRC on continuous insulation. Building codes have begun to align with building science and we are seeing more areas across the country adopt continuous insulation as part of the energy code. CI requirements with regard to the energy code can be found in the 2021 International Residential Code (IRC), …Jan 10, 2020 · Also known as band joists, rim joists are pieces of lumber—either sawn lumber or engineered lumber—that are installed vertically above the mudsill. On a new house, a typical rim joist might be a 2×10 or 2×12. Older houses have all kinds of different rim joists, including 2x6s, 2x8s, or even square timbers like 8x8s. The official recommendation from the ADC is that flex ducts should sag no more than 1/2 inch per foot of length between supports. The supports need to be at the manufacturer’s recommended spacing, but no longer than 4 feet. The straps that hold up the flex duct need to be no less than 1.5 inch wide.Looks like MBtek is getting a new pump soon. Appears to be an R290 pump (propane). Global warming coefficient is just 3 on propane, so that's a bit improvement. They also claim it has an output of 175*F. I'm a little skeptical of that. But I have seen other R290 heat pump manufacturers claim similar numbers.Oct 1, 2008 · GreenBuildingAdvisor.com offers comprehensive and reliable information on designing, building, and remodeling energy-efficient, sustainable, and healthy homes. Learn from leading green experts, access hundreds of construction drawings and product reviews, and join the community of green builders and homeowners. Martin Holladay's 30-year-old solar panel has been exposed to the weather on his rooftop for 30 years. In 1980, after living in the woods of Vermont without electricity for five years, I bought my first photovoltaic (PV) module. Responding to a small ad in Mother Earth News, I sent a check to Joel Davidson, …A. In Climate Zone 6, I would advise the use of at least 2 inches of rigid foam before switching to fluffy insulation. Better yet, meet the code requirement for R-value entirely with the foam layer, and skip the fluffy insulation. Green builders don't use XPS -- instead, choose EPS or polyiso.Subscription to GBA Prime - Green Building Advisor ... Loading... ...GreenBuildingAdvisor. @GreenBuildingAdvisor 2.94K subscribers 62 videos. More about this channel. greenbuildingadvisor.com. Home. Videos. Playlists. Community. Channels. …GreenBuildingAdvisor.com. 14,464 likes · 2,933 talking about this. Dedicated to sharing accurate and complete information about designing, building, and remodeling high-performance homes.Residential builders in Alaska have at least two major sources of motivation to build homes efficiently and with first-rate performance characteristics. One is the short building season. The other, of course, is Alaska’s Arctic cold. But for general contractor Thorsten Chlupp, whose firm, Reina LLC, is based in Fairbanks, yet another motivator …Registers are square or rectangular fittings with movable dampers to adjust airflow volume. Lightweight stamped-steel registers are used for wall and ceiling applications; heavier-duty cast or welded registers are used in floors. Diffusers cover supply openings in ceilings. They have angled vanes that discharge air in a spreading pattern.GreenBuildingAdvisor.com offers comprehensive and reliable information on designing, building, and remodeling energy-efficient, sustainable, and healthy homes. …Dec 27, 2023 · According to principal Matthew Fine, the feasibility of building six identical high-performance homes on a single parcel was never in question. What was in question, however, was achieving such a feat “at an affordable level.”. The homes themselves are “fairly modest” and “contextually appropriate,” Fine says. Green Building Advisor is a digital-only media platform in its second decade covering environmentally sensitive design, innovative materials, energy-efficient construction …The GBA said it fixed the issue two days ago, but with three and four year old questions poping-up, this may be a long deal, unless I block the GBA entirely. Maybe its time to go! I hope the new owners get a competent IT department before too long. You can direct emails from GBA to go to your spam folder.This episode of the BS* + Beer show is a discussion of spray foam insulation —the different types, their properties, application strategies, and problematic aspects. For many high-performance-home builders, spray foam is a go-to solution due to its efficacy not only as a reliable thermal insulator but also as an air barrier, yet it comes with ...A second type of heat pump is the ground-source heat pump (GSHP). During the summer, this type of heat pump transfers heat from indoor air to the soil around your house. In some cases, it may transfer heat from indoor air to the water in a drilled will, or to a nearby lake or pond. During the winter, a GSHP collects heat …Green Building Advisor is a source for builders, remodelers, architects and homeowners who want to learn about green building, products and details. Join the community of …Martin Holladay's 30-year-old solar panel has been exposed to the weather on his rooftop for 30 years. In 1980, after living in the woods of Vermont without electricity for five years, I bought my first photovoltaic (PV) module. Responding to a small ad in Mother Earth News, I sent a check to Joel Davidson, …UPDATED on September 7, 2017 with a new postscript. In the fall of 2012, I tested the performance of 11 air-sealing tapes by attaching samples to six different substrates mounted on the exterior wall of my woodshed. A month later, I tried to remove the tape samples to determine which tapes were most tenacious. I reported my findings in …Rigid foam insulation is routinely used in high-performance buildings, but it also seems to attract carpenter ants. By Scott Gibson | March 28, 2016. Ants seem to like rigid foam, as this perforated sheet of insulation seems to show. Builders have tried a number of preventive measures to keep insects at bay, but some …UPDATED on September 7, 2017 with a new postscript. In the fall of 2012, I tested the performance of 11 air-sealing tapes by attaching samples to six different substrates mounted on the exterior wall of my woodshed. A month later, I tried to remove the tape samples to determine which tapes were most tenacious. I reported my findings in …Tight control over the environmental conditions when building is one of the benefits off-site panelization. Panelized construction describes walls, floors, and roofs built in a factory and then transported to the project site where they are lifted with a crane and set on a foundation. A crew typically provided by the panel company joins the ...In a warm humid climate, an ERV brings in less outdoor humidity than an HRV. (Note: an ERV is not a dehumidifier. It does still add to the latent load in the house.) In a hot-dry climate, an HRV will make your already dry air even drier, sending your precious water vapor out into that desert air. In a cold climate, …Green Building Advisor: [email protected] USA and Canada customers: 800-943-0253. International customers: 847-559-7522. Fine HomeBuilding: …Fiberglass batts are vapor permeable and air permeable. By the way, you don't need a 12-inch air gap between your insulated concrete wall and your studs. One or 2 inches is fine. Ideally, all of your required R-value will be provided by your rigid foam, and your 2x4 stud bays will be uninsulated. Aug 19, 2010 09:12pm.The amount of insulation installed in any given building assembly depends on the climate, the part of the house being insulated, the project budget, and local code requirements. Batts and blankets: R-3.1 to R-4.1 per in. Blown-in and loose-fill insulation: R-2.6 to R-4.2 per in. Rigid foam: R-3.6 to R-6.8 per in.Oct 1, 2008 · GreenBuildingAdvisor.com offers comprehensive and reliable information on designing, building, and remodeling energy-efficient, sustainable, and healthy homes. Learn from leading green experts, access hundreds of construction drawings and product reviews, and join the community of green builders and homeowners. Gregg is renovating his 50-year-old house in Wisconsin and trying to devise the best way of insulating exterior walls from the outside. The house was built conventionally, with 2x4 walls, fiberglass batt insulation, fiberboard sheathing, and hardboard siding. He plans to tear off both siding and sheathing and remove the batt insulation, then apply 3 in. …GreenBuildingAdvisor.com offers comprehensive and reliable information on designing, building, and remodeling energy-efficient, sustainable, and healthy homes. …The lower the number, the better a product is at keeping heat in. Range: 0.1–1. Look for: Low numbers; best ≤0.30. Solar Heat Gain Coefficient measures the amount of solar radiation admitted through a window unit—either transmitted directly and/or absorbed. Lower numbers mean you’ll spend less on cooling your house.Residential builders in Alaska have at least two major sources of motivation to build homes efficiently and with first-rate performance characteristics. One is the short building season. The other, of course, is Alaska’s Arctic cold. But for general contractor Thorsten Chlupp, whose firm, Reina LLC, is based in Fairbanks, yet another motivator …Ventilation: While some ceiling-mounted cassettes (for example, the Mitsubishi SLZ-KA series) are designed to draw in outdoor air and distribute it to the living space, most ductless heads do not allow for this option. In fact, unwanted intrusion of outdoor air into a ductless head can lead to issues with condensation and temperature …In conclusion, green building advisors specialize in helping organizations design, build, and operate sustainable projects. These advisors can provide a wide range of services, including sustainability assessments, energy audits, green building design and construction support, sustainability program development, and support for sustainability ...Aug 6, 2021 · First, some definitions. There are at least four kinds of slab foundations: A thickened-edge slab, also known as a monolithic slab, integrates the footing and the slab in a way that allows all of the concrete to be placed at the same time. The perimeter footing of a thickened-edge slab isn’t very deep. [Image credit: Martin Holladay] Residential builders in Alaska have at least two major sources of motivation to build homes efficiently and with first-rate performance characteristics. One is the short building season. The other, of course, is Alaska’s Arctic cold. But for general contractor Thorsten Chlupp, whose firm, Reina LLC, is based in …Aug 6, 2021 · First, some definitions. There are at least four kinds of slab foundations: A thickened-edge slab, also known as a monolithic slab, integrates the footing and the slab in a way that allows all of the concrete to be placed at the same time. The perimeter footing of a thickened-edge slab isn’t very deep. [Image credit: Martin Holladay] So in a sense, all insulation materials have embodied global warming potential (GWP). Second, two of our common insulation materials are made with hydrofluorocarbon (HFC) blowing agents that are very potent greenhouse gases. Extruded polystyrene (XPS), best known by the brands Dow Styrofoam …The plan is to waterproof the exterior, install drain board, a perforated drain along the base of the foundation and an inground gutter system. However, we are stuck on the water proofing step. Pressure washing the exterior concrete removed all loose coating, but most of the fiber and black coating remain firmly in place.Air conditioning can also create condensing surfaces. The same phenomenon can happen in reverse in the summertime. Let’s say the outdoor air is 85°F and the relative humidity is 75%. When outdoor air leaking inward contacts a surface below about 76°F, the moisture in the air will condense. So if you have an exhaust fan in your home, the air ...A single-family home in the Buckeye State is being built for maximum energy efficiency. Just east of Dayton. Green Generation Building Company’s first home is designed to meet Passive House standards. The house is in Yellow Springs, Ohio. In early November, when it broke ground on a three-bedroom, two-bath home in Yellow Springs, …Green Building Advisor. Blogs. Musings of an Energy Nerd; Product Guide; Q&A Spotlight; Building Science; Green Building News; BS* + Beer; Energy-Smart Details ... expect to pay between $1.10 and $1.20 a square foot. More information here: New Green Building Products — September 2010. GBA Editor Martin Holladay | Mar 04, 2013 …Green Building Advisor is the one-stop source for builders, remodelers, architects & homeowners looking for expert advice on green products, strategies & proven … Green Building Advisor has a fantastic community of building experts from engineers, and scientists, to architects and builders. We encourage all to share both questions and answers. The usual rules of courtesy apply: 1. Be nice. 2. If you can’t be nice, be polite. 3. If you can’t be nice or polite — well, please be brief. Feb 16, 2024 · The Science Based Targets initiative (SBTi) recently unveiled a draft for pilot testing of its new target-setting guidance for the building sector, set to go into effect in the first half of 2024. SBTi is a partnership between the Carbon Disclosure Project (CDP), the UN Global Compact, World Resources Institutes (WRI), and World Wide Fund for ... Mar 25, 2016 · Maybe you are building a new home with an unconditioned vented attic. The house is framed, sheathed, and roofed. The drywall contractors have finished their work, so now you’re ready to insulate the attic floor. If you are an owner-builder, this may be the first time you’ve done this. So what do you need to know? Vented attics are the least expensive way to insulate the top of the house. 2. All exterior insulation on the roof or some on top with fibrous insulation beneath. Second on Kohta’s list is putting all or some of the insulation on top of the roof. This keeps the roof sheathing protected from moisture damage because it stays warm.22 reviews. #1 of 1 small hotel in Primorsko-Akhtarsk. Location. 4.5. Cleanliness. 3.6. Service. 3.6. Value. 3.0. Welcome to Tropicana Hotel, your Primorsko-Akhtarsk “home …GreenBuildingAdvisor.com. 14,464 likes · 2,933 talking about this. Dedicated to sharing accurate and complete information about designing, building, and remodeling high …Most of the world, especially the green building community, assumes that “European” implies “more energy-efficient.”. When it comes to windows, this automatic presumption of superior energy efficiency is both so common and so misplaced that it deserves a name: the Presumptive European Superiority Syndrome. Guest Blogs.ABOUT BASEMENTS # Invest in a waterproofing system Basement foundations should be insulated to minimize energy losses and should be protected from water infiltration. Even if a basement is not intended to be used as a finished space, it’s best to assume that it may be finished in the future. That’s why it’s a good investment to …This article is designed to help contractors and homeowners think about the most efficient ways to create comfortable, long-lasting basement floors while avoiding some common problems. It also explores different flooring products and subfloor methods. While the focus is basements, many of these tips and …Rockwool Comfortboard 80 is a rigid stone wool board designed for continuous insulation applications. A non-structural sheathing product, it provides increased thermal performance in 4 in. and 5 in. thicknesses, providing thermal performance up to R-21 for building envelopes. As a continuous exterior …An updated review of two of the most common sheathing products. Although skeptical builders avoided oriented strand board (OSB) when it was first introduced commercially in the 1980s, today it dominates the U.S. sheathing market, far outstripping plywood with about 64% of sales. Improved resins, better water …The amount of insulation installed in any given building assembly depends on the climate, the part of the house being insulated, the project budget, and local code requirements. Batts and blankets: R-3.1 to R-4.1 per in. Blown-in and loose-fill insulation: R-2.6 to R-4.2 per in. Rigid foam: R-3.6 to R-6.8 per in.The should match the 99% and 1% design temperatures from ASHRAE, which are also given in Table 1A in Manual J from ACCA. If the 1% summer design temperature is 91°F, as in Atlanta, a Manual J report showing that the load calculation was done with 97°F will result in an oversized air conditioner. Actually, even if the load …$149.95/year Annual membership. 10-Day Free Trial - Cancel Any Time. Membership renews automatically . Get all this and more: EXPERT ADVICE - Videos and presentations on current issues and key techniques from top building scientists.; IN-DEPTH ARTICLES - Essential reading from the Green Building Encyclopedia, Fine Homebuilding, and our …GreenBuildingAdvisor. @GreenBuildingAdvisor 2.94K subscribers 62 videos. More about this channel. greenbuildingadvisor.com. Home. Videos. Playlists. Community. Channels. …The lower the number, the better a product is at keeping heat in. Range: 0.1–1. Look for: Low numbers; best ≤0.30. Solar Heat Gain Coefficient measures the amount of solar radiation admitted through a window unit—either transmitted directly and/or absorbed. Lower numbers mean you’ll spend less on cooling your house.Green Building Advisor is a digital-only media platform in its second decade covering environmentally sensitive design, innovative materials, energy-efficient construction …The should match the 99% and 1% design temperatures from ASHRAE, which are also given in Table 1A in Manual J from ACCA. If the 1% summer design temperature is 91°F, as in Atlanta, a Manual J report showing that the load calculation was done with 97°F will result in an oversized air conditioner. Actually, even if the load …XPS would be possible, but worse from a global warming impact perspective, would cost much more, and would be harder to get in custom shapes. EPS can be directly molded into a wedge, whereas XPS comes out of the machine as a slab and would need to be cut to make a wedge. In that example it had concrete poured on top.A single-family home in the Buckeye State is being built for maximum energy efficiency. Just east of Dayton. Green Generation Building Company’s first home is designed to meet Passive House standards. The house is in Yellow Springs, Ohio. In early November, when it broke ground on a three-bedroom, two-bath home in Yellow Springs, …A High-Performance Building Envelope for a Net-Zero Energy House. Working out trouble spots during the design phase helps keep a demonstration house on time and on budget. Green Homes.The top edge of the insulation between the exterior wall and the edge of the interior slab shall be permitted to be cut at a 45-degree (0.79 rad) angle away from the exterior wall. Slab-edge insulation is not required in jurisdictions designated by the building official as having a very heavy termite infestation.UPDATED on September 7, 2017 with a new postscript. In the fall of 2012, I tested the performance of 11 air-sealing tapes by attaching samples to six different substrates mounted on the exterior wall of my woodshed. A month later, I tried to remove the tape samples to determine which tapes were most tenacious. I reported my findings in …One builder posted that when he ended up installing siding he shimmed the map siding at these locations to have a flat wall. @Dennis_vab Zip-R 12 is about $4.30 sq/ft without crazy amounts of sheathing. Im currently working on building a house and will be using Zip-r12 in zone 6a. Nailboard panels for roof as well.The embodied carbon associated with a building refers to the greenhouse gases emitted during the manufacturing of products and materials used to construct it. These emissions differ from those generated during the building’s operations i.e., operational emissions. As our buildings become more energy efficient, the portion of …Feb 16, 2024 · The Science Based Targets initiative (SBTi) recently unveiled a draft for pilot testing of its new target-setting guidance for the building sector, set to go into effect in the first half of 2024. SBTi is a partnership between the Carbon Disclosure Project (CDP), the UN Global Compact, World Resources Institutes (WRI), and World Wide Fund for ... A. In Climate Zone 6, I would advise the use of at least 2 inches of rigid foam before switching to fluffy insulation. Better yet, meet the code requirement for R-value entirely with the foam layer, and skip the fluffy insulation. Green builders don't use XPS -- instead, choose EPS or polyiso.The top edge of the insulation between the exterior wall and the edge of the interior slab shall be permitted to be cut at a 45-degree (0.79 rad) angle away from the exterior wall. Slab-edge insulation is not required in jurisdictions designated by the building official as having a very heavy termite infestation.Get building science and energy efficiency advice, plus special offers, in your inbox. “A whole-house fan creates the breeze and with windows open provides fresh air, reduces or eliminates VOCs and CO2, and cools the house for a lot [less] energy and dollars than running the AC,” he adds. “Am I nuts?”.Here are a few data points while the heat pump is running: • Noise level is around 63 dBA, 3 ft away for the outlet, frequency is around 185 Hz (yes, it's the heat pump noise) • Noise level is around 70 dBA, 2 ft on top of the unit inlet. base frequency 185 Hz with some other lower frequencies.Image courtesy of Green Building Advisor. A highlight of GBA is its construction-detail drawing library, that contains 1,000 detailed drawings. They organize these according to parts of the house and climate. Some drawings are free, but most are available to GBA Prime members only. You can visit Green …2. vinyl siding comes down to about 8-12” from the top of finished grade. 3. the sill looks to be in decent shape but it not airtight on the foundation. 4. the exterior foundation face is a mix of rubble stone, faced with some stucco. Lots of stucco has broken and crumbling, as is some of the rubble. 5.Both of these bulbs currently retail for $13.99. Analyzing the entire Energy Star dataset for LED general-purpose replacement bulbs (9) in the A19 (standard medium screw-in bulb) form factor, the LED filament bulbs have an average efficiency of 109 lm/W. The conventional bulbs (everything else in the dataset) average to 76.5 lm/W.Gregg is renovating his 50-year-old house in Wisconsin and trying to devise the best way of insulating exterior walls from the outside. The house was built conventionally, with 2x4 walls, fiberglass batt insulation, fiberboard sheathing, and hardboard siding. He plans to tear off both siding and sheathing and remove the batt insulation, then apply 3 in. … Foundations should be well insulated and keep water at bay. Depending on where you’re building, a conventional foundation could be made from poured concrete, brick, block, or stone. Because the foundation is buffered by the earth, temperature swings are less extreme than at the roof, but moisture issues are very important: Every drop of water ... In my recent post, Living the 100-amp Lifestyle, I quoted the Australian philosopher Samuel Alexander as saying, “Efficiency without sufficiency is lost.”. For years, we have been talking about building our homes with greater energy efficiency; in the meantime, on average, they have doubled in size, eating up all those energy savings.IRC on continuous insulation. Building codes have begun to align with building science and we are seeing more areas across the country adopt continuous insulation as part of the energy code. CI requirements with regard to the energy code can be found in the 2021 International Residential Code (IRC), Chapter 11, “Energy Efficiency.”.From an environmental standpoint, masonry heaters burn fuel very rapidly at a high temperature. This results in very complete combustion with little pollution generated. Except when first starting the fire, there should be no visible smoke. From a performance and comfort standpoint, masonry heaters take a long time to heat up, but they then ...The Science Based Targets initiative (SBTi) recently unveiled a draft for pilot testing of its new target-setting guidance for the building sector, set to go into effect in the first half of 2024. SBTi is a partnership between the Carbon Disclosure Project (CDP), the UN Global Compact, World Resources Institutes (WRI), and World Wide Fund for ...Firsthand experience informs this basic plan for installing rigid insulation on the outside of an older building. A retrofitted wall assembly includes foam board insulation fastened to WRB-covered sheathing; furring strips for a vented rainscreen are fastened to the foam and receive the siding. When I purchased my small 1950s vintage Cape Cod ...BuildingGreen is the essential source where trusted insight resides, knowledge is shared, unparalleled education takes place, and thought leaders interact in transforming the sustainable building movement.BuildingGreen is the essential source where trusted insight resides, knowledge is shared, unparalleled education takes place, and thought leaders interact in transforming the sustainable building movement.Medical city frisco tx, Trident restaurant, 717 supply, Alliance orthopedics, Ymca fort myers, Hapari, Medievaltimesaz, Charles town hollywood casino, Reynolds orthodontics, Danny's place, Lumberton nissan lumberton north carolina, Tulsa bone and joint tulsa ok, Humane society tampa, Huron estates
UPDATED on September 7, 2017 with a new postscript. In the fall of 2012, I tested the performance of 11 air-sealing tapes by attaching samples to six different substrates mounted on the exterior wall of my woodshed. A month later, I tried to remove the tape samples to determine which tapes were most tenacious. I reported my findings in …. South point
Armando Cobo is a zero-energy custom home designer, trainer, and building consultant with over 35 years of experience. Armando designs following the guidelines of DOE’s Zero Energy Ready Home program, The Building America Program, Build Green New Mexico, California’s Title 24, National Home Builders Association’s Green Building Program, and LEED for Homes, among others. This article is designed to help contractors and homeowners think about the most efficient ways to create comfortable, long-lasting basement floors while avoiding some common problems. It also explores different flooring products and subfloor methods. While the focus is basements, many of these tips and …The lower the number, the better a product is at keeping heat in. Range: 0.1–1. Look for: Low numbers; best ≤0.30. Solar Heat Gain Coefficient measures the amount of solar radiation admitted through a window unit—either transmitted directly and/or absorbed. Lower numbers mean you’ll spend less on cooling your house. Green Building Advisor. Blogs. Musings of an Energy Nerd; ... The complete source for building, designing, and remodeling green homes. Try for Free. Community and Q&A It’s easy: Keep your heat from going through the roof. Saving money on heating-fuel costs is a lot simpler than negotiating with OPEC or your local utility. On a recent upgrade in the attic of a 1950s-era house (one of two projects shown here), I air-sealed and spread a 12-in.- deep layer of cellulose throughout 1500 sq. ft. of space in about ...All heat pumps work on the same principle, moving heat from one location to another with the help of a closed refrigerant loop, a compressor, and a heat exchanger. In winter, heat is extracted from air, water, or the earth; this heat is used to heat the house. In summer, the process can be reversed so the heat pump pulls heat from the inside and …GreenBuildingAdvisor. @GreenBuildingAdvisor 2.94K subscribers 62 videos. More about this channel. greenbuildingadvisor.com. Home. Videos. Playlists. Community. Channels. …The big difference in temperature between the room air and the heated air also creates variation in temperature from one part of the room to another. A heat pump blows lower temperature air into the house, and that’s better for comfort. A heat pump, by contrast, adds a greater volume of lower temperature air.Green Building Advisor is a digital-only media platform in its second decade covering environmentally sensitive design, innovative materials, energy-efficient construction …Vented attics are the least expensive way to insulate the top of the house. 2. All exterior insulation on the roof or some on top with fibrous insulation beneath. Second on Kohta’s list is putting all or some of the insulation on top of the roof. This keeps the roof sheathing protected from moisture damage because it stays warm.The Navien 240E’s minimum input at 95% efficiency is 17,000 BTU/hr. some 30% higher than the average seasonal load of 13,000 BTU/hr. so the boiler will rarely modulate. The minimum input into the 85 feet of fin-tube radiation is at the maximum 200 BTU/hr. (17,000/85) needed for condensing.Nov 20, 2023 · The SANCO2 split-system heat pump water heater offers benefits that include energy efficiency, low-GWP refrigerants, and the possibility in some situations to provide space heating. Over the last couple of years, there’s been a lot of buzz about the SANCO2, a newer type of air-source heat-pump water heater (HPWH) from ECO2 Systems. Also known as band joists, rim joists are pieces of lumber—either sawn lumber or engineered lumber—that are installed vertically above the mudsill. On a new house, a typical rim joist might be a 2×10 or 2×12. Older houses have all kinds of different rim joists, including 2x6s, 2x8s, or even square timbers like 8x8s.Corbett Lunsford just released a video on his Youtube channel called "The Science of Sick Building Syndrome and Environmental Sensitivity" and in it they discussed the fact that when Pex is tested in a lab the scientists were told that the tubing had to be regularly flushed out with fresh water for 14 days in order for …If you are building a new home, do your best to reduce air leakage, and you'll be fine. During the winter, the supply air from an HRV will be somewhat dryer than the supply air from an ERV, so choose an ERV if you're worried. But I don't think an HRV will cause any problems at all in your climate.It “sort of works,” said Green Building Advisor Michael Chandler, but a better option is installing foil-faced duct insulation (not foil-faced bubble wrap) after ducts have been sealed with mastic and checked for air-tightness, preferably by an independent tester. Foil-faced bubble wrap “is not Energy Star or Manual D approved,” he ... The complete source for building, designing, and remodeling green homes. Try for Free. Green Basics Green Building Advisor’s Encyclopedia of Articles and Videos A High-Performance Building Envelope for a Net-Zero Energy House. Working out trouble spots during the design phase helps keep a demonstration house on time and on budget. Green Homes.GreenBuildingAdvisor.com. 14,464 likes · 2,933 talking about this. Dedicated to sharing accurate and complete information about designing, building, and remodeling high-performance homes.Green is often less expensive when all things are considered. Sustainable building often seems more expensive than conventional building. Many of the building materials that make houses more durable and easier to heat and cool aren’t cheap. Complicated systems that allow a certain amount of energy independence–photovoltaic …When it comes to constructing and fitting out buildings, our focus is—or at least should be—on the holistic impacts of each decision we make. The best stewards …The result came in at 6650 cubic feet per minute (cfm) with the pressure difference between the house and outdoors at -50 Pascals (cfm50), which translates to 11.3 air changes per hour at 50 Pascals (ACH50). The encapsulated attic was almost equally connected to the living space and the outdoors. 2019 – Woodman Insulation came in and …Image Credit: Niagara Conservation Corp. Niagara Conservation has introduced a new toilet that’s unlike anything on the market. It uses passive “vacuum-assist” technology to deliver a very quiet, effective flush that consumes just 0.8 gallons (3.0 liters)–making it, I believe, the most water-conserving of any flush …BEAM’s combined functionalities allow users to make project-specific materials selections, identify materials with the biggest carbon penalty, and find alternatives. Users input the main dimensions of a building and are given a list of available materials for the primary assemblies and the carbon impact of each product.$149.95/year Annual membership. 10-Day Free Trial - Cancel Any Time. Membership renews automatically . Get all this and more: EXPERT ADVICE - Videos and presentations on current issues and key techniques from top building scientists.; IN-DEPTH ARTICLES - Essential reading from the Green Building Encyclopedia, Fine Homebuilding, and our …BEAM’s combined functionalities allow users to make project-specific materials selections, identify materials with the biggest carbon penalty, and find alternatives. Users input the main dimensions of a building and are given a list of available materials for the primary assemblies and the carbon impact of each product.The plan is to waterproof the exterior, install drain board, a perforated drain along the base of the foundation and an inground gutter system. However, we are stuck on the water proofing step. Pressure washing the exterior concrete removed all loose coating, but most of the fiber and black coating remain firmly in place.Design your building and design the excavation. Create a tent roof like the building roof, dig the excavation, and put the tent roof over the excavation. Then wait. Maybe a year, maybe more. After every heavy rain go back to the hole and see if the hole is dry. If, after a long wait the hole remains dry then build your …Jul 8, 2022 · Installing Rigid Foam Above Roof Sheathing - GreenBuildingAdvisor. Musings of an Energy Nerd. By Martin Holladay | July 8, 2022. This approach can be used to create an unvented conditioned attic, allowing attic ducts to be installed inside a home’s thermal envelope. Many modern designs include cathedral ceilings, and cathedral ceilings need ... It “sort of works,” said Green Building Advisor Michael Chandler, but a better option is installing foil-faced duct insulation (not foil-faced bubble wrap) after ducts have been sealed with mastic and checked for air-tightness, preferably by an independent tester. Foil-faced bubble wrap “is not Energy Star or Manual D approved,” he ...Subscription to GBA Prime - Green Building Advisor ... Loading... ...GreenBuildingAdvisor.com. 14,464 likes · 2,933 talking about this. Dedicated to sharing accurate and complete information about designing, building, and remodeling high …$149.95/year Annual membership. 10-Day Free Trial - Cancel Any Time. Membership renews automatically . Get all this and more: EXPERT ADVICE - Videos and presentations on current issues and key techniques from top building scientists.; IN-DEPTH ARTICLES - Essential reading from the Green Building Encyclopedia, Fine Homebuilding, and our …Originally developed by Skanska and C Change Labs, EC3 was incubated by the Carbon Leadership Forum and nearly 50 industry partners until its public launch at Greenbuild 2019, at which time the nonprofit Building Transparency was founded to house EC3. Its mission is to provide open-access data on …The embodied carbon associated with a building refers to the greenhouse gases emitted during the manufacturing of products and materials used to construct it. These emissions differ from those generated during the building’s operations i.e., operational emissions. As our buildings become more energy efficient, the portion of emissions that ...Image courtesy of Green Building Advisor. A highlight of GBA is its construction-detail drawing library, that contains 1,000 detailed drawings. They organize these according to parts of the house and climate. Some drawings are free, but most are available to GBA Prime members only. You can visit Green …This $250,000 figure was based on 80% of our bank’s expected appraised value of our design at $312,500. The 80/20 loan-to-value matrix is very common in residential mortgage lending. I budgeted an additional $25,000 out of pocket, resulting in my self-design/build budget of $100 per sq. ft.Book Cheap Flights to Primorsko-Akhtarsk: Search and compare airfares on Tripadvisor to find the best flights for your trip to Primorsko-Akhtarsk. Choose the best airline for you by …Green Building Advisor is the one-stop source for builders, remodelers, architects & homeowners looking for expert advice on green products, strategies & proven …This is the short answer as to why the new building codes are increasing requirements for continuous insulation. The 2012 IECC will require R-20 or R13+5 for Climate Zones 3, 4, and 5, and it requires R20+5 or R15+10 for Climate Zones 6, 7, and 8. [Editor’s note: In some climates, the “R20+5” approach is not … Armando Cobo is a zero-energy custom home designer, trainer, and building consultant with over 35 years of experience. Armando designs following the guidelines of DOE’s Zero Energy Ready Home program, The Building America Program, Build Green New Mexico, California’s Title 24, National Home Builders Association’s Green Building Program, and LEED for Homes, among others. This U.S. map shows which counties have been assigned to a different climate zone for purposes of building and energy codes. Counties marked in red are now in warmer climate zones with less stringent energy requirements. Counties marked in green have shifted to colder climate zones. Map courtesy Pacific Northwest National Laboratory.If you do it this way, you should have very little vibration or sound coupling into the structure from the outdoor units. If the stand itself is vibrating, add some mass. An easy way to do this is to attach some solid concrete 1/2 blocks (about $1 each) to the underside of the shelves where the units are.The official recommendation from the ADC is that flex ducts should sag no more than 1/2 inch per foot of length between supports. The supports need to be at the manufacturer’s recommended spacing, but no longer than 4 feet. The straps that hold up the flex duct need to be no less than 1.5 inch wide.Although I wrote a 2012 article for Fine Homebuilding on ways to insulate the cramped attic behind a kneewall, I’ve never written such an article for GBA. So it’s clearly time for a comprehensive article on the topic. A kneewall is sometimes defined as “a short wall under a sloped ceiling.”. A typical kneewall is between 3 and 5 feet high.Whoever lives in the house is going to be stuck with the insulation decision for a long time. The choices aren’t unlimited, but it may seem that way. In addition to ever-popular fiberglass batts, there’s blown-in fiberglass, cellulose, spray polyurethane foam, rigid foam, fiberboard, and mineral wool. Most of those come in more than one ...Green Building Advisor is a source for builders, remodelers, architects and homeowners who want to learn about green building, products and details. Join the community of …In a warm humid climate, an ERV brings in less outdoor humidity than an HRV. (Note: an ERV is not a dehumidifier. It does still add to the latent load in the house.) In a hot-dry climate, an HRV will make your already dry air even drier, sending your precious water vapor out into that desert air. In a cold climate, …Both of these bulbs currently retail for $13.99. Analyzing the entire Energy Star dataset for LED general-purpose replacement bulbs (9) in the A19 (standard medium screw-in bulb) form factor, the LED filament bulbs have an average efficiency of 109 lm/W. The conventional bulbs (everything else in the dataset) average to 76.5 lm/W.Originally developed by Skanska and C Change Labs, EC3 was incubated by the Carbon Leadership Forum and nearly 50 industry partners until its public launch at Greenbuild 2019, at which time the nonprofit Building Transparency was founded to house EC3. Its mission is to provide open-access data on …That will deflect water away from accumulating in the window wells. Secure them down so they don't blow away (e.g., with tent stakes). 5. Remember the importance of grading. Slope away from the foundation in all directions to avoid water pooling at the foundation perimeter. Check during intense or long rainy periods.Last month, the community of Fairmount Heights, in Prince George’s County, Maryland, broke ground on a new development of six zero-energy ready, single-family homes—slated for completion summer 2024—that will be available to first-time homebuyers earning 80% or less of PG County’s median income (which is $120,550 for a four-person ...The code recommendations for 2×6 walls assume (in Climate Zone 6) that any exterior rigid foam has a minimum R-value of R-11.25 — your polyiso will perform at R-9 or R-10 in cold weather, so it’s not quite thick enough — and fluffy insulation between the studs rated at R-19 or R-20.If you are building a new home, do your best to reduce air leakage, and you'll be fine. During the winter, the supply air from an HRV will be somewhat dryer than the supply air from an ERV, so choose an ERV if you're worried. But I don't think an HRV will cause any problems at all in your climate.So in a sense, all insulation materials have embodied global warming potential (GWP). Second, two of our common insulation materials are made with hydrofluorocarbon (HFC) blowing agents that are very potent greenhouse gases. Extruded polystyrene (XPS), best known by the brands Dow Styrofoam …Questions Archive - GreenBuildingAdvisor. The complete source for building, designing, and remodeling green homes. Try for Free. Community and Q&A. A Forum …This episode of the BS* + Beer show is a discussion of spray foam insulation —the different types, their properties, application strategies, and problematic aspects. For many high-performance-home builders, spray foam is a go-to solution due to its efficacy not only as a reliable thermal insulator but also as an air barrier, yet it comes with ...This is the short answer as to why the new building codes are increasing requirements for continuous insulation. The 2012 IECC will require R-20 or R13+5 for Climate Zones 3, 4, and 5, and it requires R20+5 or R15+10 for Climate Zones 6, 7, and 8. [Editor’s note: In some climates, the “R20+5” approach is not …When it comes to constructing and fitting out buildings, our focus is—or at least should be—on the holistic impacts of each decision we make. The best stewards …Directly under the snow, the top few inches of soil might be 15°F. Two feet lower, the soil temperature might be 32°F. At 5 feet below grade, the soil temperature might be 40°F. Under the basement slab, the soil temperature might be 50°F or 55°F. Now let's look at the foundation wall.Response to Martin Holladay, GBA Advisor Martin, Thanks for the response, I attached a couple of pictures of my knee wall, it is big enough to get behind. ... Unfortunately, I am in a location with very few resources when it comes to green building or renovating. I hope you can offer advice about my unconditioned attic. Basics: 80-year-old ...$149.95/year Annual membership. 10-Day Free Trial - Cancel Any Time. Membership renews automatically . Get all this and more: EXPERT ADVICE - Videos and presentations on current issues and key techniques from top building scientists.; IN-DEPTH ARTICLES - Essential reading from the Green Building Encyclopedia, Fine Homebuilding, and our …Introducing the 120-volt Plug-in Heat Pump Water Heater. Geothermal heat pumps have a reputation for being efficient and “green”; is it deserved? In contrast, feedback from owner experience, and substantiated by discussion on industry boards and forums, paints a less flattering picture of the realities of geothermal.From an environmental standpoint, masonry heaters burn fuel very rapidly at a high temperature. This results in very complete combustion with little pollution generated. Except when first starting the fire, there should be no visible smoke. From a performance and comfort standpoint, masonry heaters take a long time to heat up, but they then ...In conclusion, green building advisors specialize in helping organizations design, build, and operate sustainable projects. These advisors can provide a wide range of services, including sustainability assessments, energy audits, green building design and construction support, sustainability program development, and support for sustainability ...This is the short answer as to why the new building codes are increasing requirements for continuous insulation. The 2012 IECC will require R-20 or R13+5 for Climate Zones 3, 4, and 5, and it requires R20+5 or R15+10 for Climate Zones 6, 7, and 8. [Editor’s note: In some climates, the “R20+5” approach is not …Carter Scott was one of the first builders bold enough to build a cold-climate home heated by only two ductless minisplit units (one in the downstairs living room, and one in the upstairs hallway). Skeptics predicted that the unheated bedrooms would be cold and uncomfortable. Yet Scott was confident that the home’s excellent thermal envelope — …Subscription to GBA Prime - Green Building Advisor ... Loading... ...The lifecycle “cost” of carbon involved in building construction can be measured by the global warming potential (GWP) associated with the manufacturing and use of each building component. This is measured in carbon dioxide equivalence (CO2e). My focus was specifically on insulation, which is a product that customers and contractors ...Inspect the attic access carefully to find any air-leakage pathways that need to be sealed. For house plans, use the pen test. Make it easy for occupants to use, including returning it to the sealed position. Attics can be as cold as the outdoor air in winter and much hotter than outdoor air in summer.Book Cheap Flights to Primorsko-Akhtarsk: Search and compare airfares on Tripadvisor to find the best flights for your trip to Primorsko-Akhtarsk. Choose the best airline for you by …Dana Dorsett gets right to the point, summing up what looks like a common point of view: “An open-hearth fireplace (with or without glass doors) is an inefficient, extremely polluting way to burn wood that has no place in a ‘green’ house,” Dorsett writes. “They are even illegal to use in some locations due to the …A radiant floor system powered by a boiler that produces 75,000 or 80,000 Btu per hour is overkill, what Theodore Bernstein would call an “atomic flyswatter.”. The case for an expensive heating system built around a powerful boiler begins to collapse as the building enclosure becomes better insulated and air-sealed.A. In Climate Zone 6, I would advise the use of at least 2 inches of rigid foam before switching to fluffy insulation. Better yet, meet the code requirement for R-value entirely with the foam layer, and skip the fluffy insulation. Green builders don't use XPS -- instead, choose EPS or polyiso.Both of these bulbs currently retail for $13.99. Analyzing the entire Energy Star dataset for LED general-purpose replacement bulbs (9) in the A19 (standard medium screw-in bulb) form factor, the LED filament bulbs have an average efficiency of 109 lm/W. The conventional bulbs (everything else in the dataset) average to 76.5 lm/W.Nov 17, 2009 · My father inlaw about 6 years ago hired a roofer tp put new shingles on top of old shingles the old shingles has a green type moss above kitchen area weren't removed when new shingles were put on. There was never any insulation between the original tar/gravel attic side of the roof and the 2nd outer roof. The building will be a large shop/residence in Zone 6 - stick built (2” x 6”s), 30’ x 80’ with 12’ walls, slab on grade. Roof system will be 30’ wide-spread trusses, ~8’ high on 2’ centers (snow loads 100lbs and wind 115 mph gusts) with 7.25” high energy heals and a 12’ “box” space for storage running the length of the roof space between the webs.Martin Holladay's 30-year-old solar panel has been exposed to the weather on his rooftop for 30 years. In 1980, after living in the woods of Vermont without electricity for five years, I bought my first photovoltaic (PV) module. Responding to a small ad in Mother Earth News, I sent a check to Joel Davidson, …Here are a few data points while the heat pump is running: • Noise level is around 63 dBA, 3 ft away for the outlet, frequency is around 185 Hz (yes, it's the heat pump noise) • Noise level is around 70 dBA, 2 ft on top of the unit inlet. base frequency 185 Hz with some other lower frequencies.. 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