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Attic Air Sealing Guide and Details, GM-1001

Reference

Document providing 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 for durability.

Radiant Barrier: Effect of Radiant Barriers on Heating and Cooling Bills

Reference

Fact sheet describing analysis of potential heating and cooling savings from radiant barriers in attics.

Measure Guideline: Guide to Attic Air Sealing

Reference

Guideline describing information and specifications relevant to air-seal existing attics.

Investigating Solutions to Wind Washing Issues in 2-Story Florida Homes; Phase 1

Reference

Research study describing field testing performed in 32 two-story Florida homes to characterize wind washing failures of the house air and thermal boundary.

Vented roof assembly at eave retrofitted with rigid foam, spray foam, and fully adhered membrane to air seal the top of wall-to-roof transition

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

Reference

Report highlighting the evaluation methods used and extent of wind washing found in a study analyzing wind washing in thirty-two two-story homes.

Attic or Roof? An Evaluation of Two Advanced Weatherization Packages, BA-1205

Reference

Report about a project that examines implementation of advanced retrofit measures in the context of a large-scale weatherization program and the archetypal Chicago, Illinois, brick bungalow.

Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition

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Ducts in Dropped Ceilings

Guide

Guide describing method for installing ducts in a duct chase in a dropped ceiling.

Air seal the attic access panel with weatherstripping.

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Moisture Performance of Unvented Attics with Vapor Diffusion Ports and Buried Ducts in Hot, Humid Climates

Reference

Report on the use of vapor diffusion ports to reduce moisture issues with buried ductwork in unvented attics in hot-humid climates.

Air sealing at attic hatch - finish screws

CAD File

Air seal at cabinet soffit - single-story

CAD File

Air seal the attic access pull-down stairs opening with weatherstripping.

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Air sealing at attic pull down attic stair

CAD File

Field Evaluation of Four Novel Roof Designs for Energy-Efficient Manufactured Homes

Reference

Report of a field evaluation of four novel roof designs to see how each design would reduce space-conditioned energy use so that the knowledge gained could be applied to the design of new manufactured homes.

Existing Whole-House Solutions Case Study: Deep Energy Retrofit in the Pacific Northwest

Case Study

Case study describing a whole-house, deep energy retrofit project in the marine climate.

Disaster-Resistant Roof Venting

Guide

Guide describing the installation of roof vents that are resistant to damage from high winds and entry of wind-borne rain, wildfire embers, or pests.

Attic Ventilation Fans

Information Guide

Information guide describing the use of attic ventilation fans to mechanically pull outside air through the attic in an attempt to cool the attic, control moisture, and prevent ice dams.

Air Seal HVAC Cabinet Seams

Guide

Guide describing air-sealing of the seams and holes in HVAC air handler and furnace cabinets.

New Whole-House Solutions Case Study: Tom Walsh & Co., New Columbia, Portland, OR

Case Study

Case study describing a new construction building project of 20 homes that earned HERS scores that represent greater than 50% energy savings in heating and cooling over the 2004 IECC.