Will the contractors need to cut holes in my roof or sidewall to install vents or insulation?

Attic and sidewall insulation are generally the most cost effective energy conservation measures. Proper venting is essential to allow adequate air circulation in your attic and eliminate condensation problems. With sidewall installation, most siding will be lifted, but in some cases, it is necessary to drill through the siding. The inspector will be able to let you know how this will be addressed.