From the highest point on Mt. Washington. Replacing sidewall shingle, restores the turn of the century warmth and traditional beauty to your Craftsman home. Shingle manufacturers specify no more than 40-50 years for a serviceable shingle lifetime, though many, incorrectly, push this shingle specification to 100 years and more. Re-shingling the sidewalls, allows the installation of wall insulation and vapor barriers, that will make all the difference in the world to interior sound and temperature. Additionally, installing clear interior window covers can bring your overall “R” value, to a respectable level.