BASC Search | Building America Solution Center

To reduce the risk of condensation on the interior of the roof sheathing in cold weather, the ratio of exterior (above-deck) insulation must be increased as a percent of total attic insulation as outside temperature decreases

Image

The builder installed 1.5 inches of soy-based spray foam on the outside of the walls over the OSB sheathing, then kept a ¾ inch gap between the foam and the brick veneer siding to allow moisture vapor from the bricks to dissipate.

Image

Hurricane Straps

Video

Video describing hurricane ties and how they make your home more ready for severe weather by strengthening structural connections.

Moisture Control for Residential Buildings

Reference

Report providing extensive guidance on controlling moisture in building envelopes through proper selection and installation on air, water, thermal, and vapor barriers.

Condensation Control in Attics and Roofs in Cold Weather

Guide

Guide describing causes of condensation in attics and roof assemblies during cold weather and ways to reduce this condensation.

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.