Roofing & Siding
Vinyl Siding Institute Insulated Siding Guide
The Vinyl Siding Institute, Inc. (VSI) has published “Insulated Siding as Home Insulation: Guide for Users and Energy Raters,” a resource that explains how insulated siding can improve a home’s energy efficiency. The Guide helps users understand how insulated siding can lower a home’s HERS (Home Energy Rating System) Index and meet the requirements of residential energy efficiency programs. The guide is a free resource that can be downloaded at www.insulatedsiding.info.