Design & Construction Resources
Heavy-Duty Window Flashing by Chris Corson Using Extoseal Encor
We had the opportunity to meet up with Chris Corson, Technical Director for EcoCor High Performance Building Systems (formerly, EcoCor Design / Build), on a significant new project in Woodstock,...
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475 Does WUFI®: Mold Potential and Historic Masonry Retrofits in Climate Zone 6 (Burlington, VT)
475 Does WUFI®: Mold Potential and Historic Masonry Retrofits in Climate Zone 6 (Burlington, VT) A key piece of the puzzle as we decarbonize our building stock is successfully retrofitting...
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Can't vent at valleys and dormers? Use a smart vapor retarder (not foam)
Can't vent at valleys and dormers? Use a smart vapor retarder (not foam) Straight gable roofs are easy to vent, and ideally would be vented. But often we end up...
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Keeping Sheathing Dry in High-R Double-Stud Walls - a WUFI study
Double-stud walls have become a popular and cost efficient way to build well-insulated envelopes: two 2x4's spaced apart easily makes a R-40+/10.5" thick wall. Such walls also include a thermal...
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Unvented Flat Roofs: A Technical Discussion
Flat roofs have often been built with the insulation all on top of the vapor closed drainage plane - as this avoids dew point condensation issues inboard of the roofing....
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A high performance roof should be vented - how to do this properly
Vented roofs work, and are the best solution to eliminate many issues that appeared when we started to insulate buildings - 'leaks' caused by condensation, mold, water damaged sheathing and...
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Integrating a window in the airtight layer - brick/brownstone retrofit case
Windows and doors are inherently the weakest link in our buildings' enclosures. Even with the use of great triple pane glass, super-spacers and thermally broken frames, you would be hard-pressed...
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Blower Door Protocol for Passive House Certification
Automated blowerdoor test according to EN13829 with DG700 manometer controlled by laptop Building air-tightness below 0.6 air changes per hour at 50 pascals pressure (0.6ACH50) is a simple target that...
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Blowing dense-packed cellulose, it's like magic
Infrared image of Cellulose bays not completely filled with densepack behind sheetrock. With Pro Clima's reinforced intelligent membranes INTELLO Plus, DB+ and the exterior vapor open SOLITEX Plus WRB -...
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