BASC Search | Building America Solution Center

2021 IECC Climate Zone 5A: Vented Over Roof, Unvented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement

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2021 IECC Climate Zone 5B: Vented Over Roof, Unvented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement

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2021 IECC Climate Zones 7 and 8: Vented Over-Roof, Unvented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement

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Unvented Attic Insulation (2)

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Video describing how to spray foam unvented attics.

Right - Panelized walls came to site with house wrap and furring strips pre-installed; seams will be overlapped and taped on site.

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Advanced Framing vs Traditional Framing

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Video describing traditional 2x4 16 inch on center framing versus advanced framing with 2x6 stud walls at 24 inch on center, insulated corners and headers, wall stud-ceiling joist alignment, etc. providing a strong wall with more room for insulation.

Install rigid insulation and finish material below the framing and cavity insulation of a building overhang

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Opportunities for Energy Conservation and Improved Comfort From Wind Washing Retrofits in Two-Story Homes - Part II

Reference

Report presenting the results of a study evaluating retrofit solutions for addressing the effects of wind washing on homes.

Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections

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Wrong - Batt insulation does not provide complete coverage across the attic floor so ceiling joists are exposed resulting in thermal bridging.

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Right - A wood dam was constructed to hold back the attic floor insulation

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How to Install a Chimney Pillow

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Video describing how to make a do-it-yourself chimney pillow to stop drafts and energy losses from a temporarily unused fireplace.

This IR camera image of an exterior wall shows fairly even, warm color indicating that the wall insulation is providing a consistent adequate layer of insulation across the wall.

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Wrong - House wrap was not cut installed under the plumbing hose bib trim and/or edges of the house wrap have not been taped so sheathing is exposed.

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IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab

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IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab

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Installation of weatherstripping on a window.

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Unvented Attic Insulation (1)

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Video describing how to spray foam unvented attics.

Wrong – the sheathing tape is properly installed to cover all seams in the coated sheathing but the flexible sill flashing product is not consistently installed or fully adhered around the window sills and is missing or lapped at some corners.

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New Whole-House Solutions Case Study: Schneider Homes, Inc., Village at Miller Creek, Burien, WA

Case Study

Case study describing new home construction in the marine climate that achieved 50% savings over the 2004 IECC.

Structural Insulated Panels (SIPs)

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Video describing structural insulated panels.

Madrona PH Window Installation | Seattle, WA

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Video demonstrating a window installation in a passive house.

Install (or re-install) caulking around an exhaust fan vent that was installed after the wall was sided; inspect the caulking every two years and reapply if the old caulking has cracked.

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READ THIS: Before You Move In, GM-0606

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Report describing steps homeowners can take to improve the indoor air quality in their home, including ventilating, preventing pests, and reducing pollutants in the home.

Evaluation of Ventilation Strategies in New Construction Multifamily Building

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Technical report describing the evaluation of four different ventilation strategies for providing make-up air in high-performance, new construction multifamily buildings in the Northeast, emphasizing the challenges posed by increasing airtightness standards and the variability of system performance...