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Common Advanced Framing DetailsOptimum-value engineering (OVE) framing techniques were developed under a Housing and Urban Development (HUD) initiative in the 1960's to cut the cost of houses by… Read More
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Keeping soil gas (radon, water vapor, herbicides, termiticides, methane, etc.) out of foundations cannot be done by building hole-free foundations because hole-free foundations cannot be built. Soil… Read More
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Water managed foundation systems prevent the build-up of water against foundation walls, thereby eliminating hydrostatic pressure. No pressure, no force to push water through a hole.Groundwater… Read More
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Joseph Lstiburek's classic list of building practices not recommended for hot-humid climates. This list was first posted on Building Science Corporation's website in 1997.10. Vented Attics and Vented… Read More
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This list contains some of the basic characteristics that should be met in all high performance homes. It has been used as our baseline criteria for all of BSC’s Building America projects.This list,… Read More
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2x6 framing
XPS insulating sheathing
Fiberglass or cellulose cavity insulation in stud space
Scoring: How It Rates
The scoring of each wall system is based on the following five categories. A… Read More
Cold
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OVERVIEWSpray foam insulation has significant advantages over other insulation systems due to the spray foam ability to provide continuity of the water control, air control, vapor control and thermal… Read More
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Houses are environmental separators – they keep the outside out and the inside in. Houses have walls, roofs and foundations that each have to be connected to each other (Figure 1). To function as… Read More
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IntroductionThis guide provides information on how to construct vapor diffusion ports when using fiberglass and mineral wool insulation with conditioned unvented attics and unconditioned unvented… Read More
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This guide provides mechanical ventilation requirements of occupied spaces in new low-rise residential buildings including single-family houses and multifamily structures such as apartment buildings… Read More
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The purpose of this guide is to provide useful examples of high performance retrofit techniques for the building enclosure of wood frame residential construction in a cold and somewhat wet climate.… Read More
Cold
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High performance precast concrete enclosure walls stand apart from most "rainscreen" walls in several key respects: how they control rain penetration, how they provide airtightness, and their… Read More
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This guide provides the background and approach for the prep work necessary prior to adding attic insulation - focusing on combustion safety, ventilation for indoor air quality, and attic ventilation… Read More
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This guide describes ways to meet the roof venting requirements as per building code while converting the attic into living space by moving the insulation to the underside of the roof deck between… Read More
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This guide describes ways to attach siding in cases where wood sheathing is not used and provides prescriptive guidance on cladding attachment as per building code that allows cladding attachment… Read More
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This guide details the interior vapor retarder requirements as per building code when insulating sheathing is installed on the outside of an exterior wall. The interior vapor retrader can be removed… Read More
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This guide details wall bracing requirements for insulating sheathing as per building code and clarifies whether insulation board can be installed in lieu of plywood on the outside on an exterior… Read More
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This guide provides code requirements for basement insulation and clarifies whether building code allows for leaving insulation exposed in the basement. The requirements are based on whether the… Read More
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This appendix contains Building Science Information Sheets that provide more information for specific inspection points on the BSC Building America Quality Control Checklist. Each Information Sheet… Read More
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The Building America Quality Control Checklist has been developed by Building Science Corporation as both a guide to assist in the transition to high performance home building, and as a simplified… Read More
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BSC’s Quality Assurance Roadmap outlines the approach to quality assurance in the construction process as recommended by Building Science Corporation for new residential construction. Seven process… Read More
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Residential housing design continues to move towards the development of high performance sustainable building systems. To be sustainable, a building must not only be efficient and durable but also… Read More
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