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Rigid foam insulation in vent areas

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Rigid Foam Board Interior Insulation for Existing Foundation Walls

Guide

Guide describing how to insulate closed crawlspace walls and band joist areas with rigid foam board insulation.

Managing Indoor Humidity and Ventilation in Cold Weather

Guide

Guide describing steps to take to minimize indoor humidity during cold winter weather.

Building America Case Study Technology Solutions for Existing Homes: Bedford Farmhouse High Performance Retrofit Prototype

Case Study

Case study describing project conducted by Habitat for Humanity of Greater Lowell (HfHGL) and Building Science Corporation (BSC).