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Panelization: A Smarter Approach to Building

Panelization: A Smarter Approach to Building | 2019-04-01 | Walls & Ceilings This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more. This Website Uses CookiesBy closing this message or continuing to use our site, you agree to our cookie policy. Learn More This website requires certain cookies to…

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Why Passive Fire Protection is Critical in Commercial Construction

Why Passive Fire Protection is Critical in Commercial Construction | 2019-04-01 | Walls & Ceilings This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more. This Website Uses CookiesBy closing this message or continuing to use our site, you agree to our cookie policy. Learn More This website requires…

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The Multi-Zone Heat Pump Issue

In cold climates, multi-zone heat pump systems (or multi-split systems) are developing a reputation for under-performing  in terms of energy efficiency. In a nutshell, this happens when you ask a large capacity heat pump to eke out small amounts of heating or cooling. Your efficiency will come nowhere close to what was advertised or what you used in your energy model.Don’t freak out! Chris and Phil invited a special guest, Dana Fischer of Mitsubishi, to share a beverage and get to the bottom of this problem and how to properly approach the design of multi-zone heat pumps for your energy-efficient…

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How (Older) Homes Work

An educational session for homeowners in Newton, Massachusetts. The two-day course is titled "How (Older) Homes Work." [Photo credit: Steve Snider] Opportunities for builders to obtain building science education may seem scant, but opportunities for people who own and operate buildings — particularly homeowners — are even rarer. About two years ago, this lack led to my developing a class for homeowners called “How (Older) Homes Work” (HOHW). My good friend and colleague, Steve Snider, really got got the ball rolling when he suggested that I come to his community (Newton, Massachusetts) to do this training as a two-evening seminar…

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How to Select an Insulation Facing

When it comes to fiberglass insulation, there are a variety of facings available to meet the unique needs of varied HVAC and mechanical applications.  That said, when it comes to selecting a facing material, there’s are a variety of nuanced details that should influence your facing material selection. Facings serve a variety of purposes, ranging from aesthetics to limiting vapor drive. As you consider which facing is best for your application, there are a number of characteristics you’ll want to consider before you make your selection. Today, we’ll compare the characteristics of four different kinds of facing offered by JM:…

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Moisture Control: Utilizing Vapor Retarders

A vapor retarder is defined as a material or system that adequately retards the transmission of water vapor under specific conditions. Building occupants, certain appliances, plants, and plumbing equipment generate moisture that is carried in the air as vapor. Moisture control through limiting water vapor movement in commercial buildings is essential. A vapor retarder helps prevent water vapor from moving into building assemblies, like walls, where it can condense into liquid water within the structure. Liquid water can accumulate inside exterior walls and in roof and crawl spaces. If enough water is present, rot and decay can cause significant damage.…

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