Lee Wallender is a home improvement writer of nearly 20 years and specializes in home remodeling, repair and maintenance. Sami Allen is the managing editor at Forbes Home, with over seven years of ...

This nominally 40-mil thick product is an air, vapor, and liquid moisture barrier. When properly applied, AIR-SHIELD ALUMINUM FLASHING reduces the risk of rot and mold development. New from W. R.

Pry, chisel and scrape off old metal flashings and roofing cement. Before you do anything, get your ladder, roof brackets and safety harness set up so you can work safely and efficiently on the roof.

Have you ever heard a contractor or other DIYer talk about "flashing" and wondered what they mean? Or maybe you've got a rough idea but need clarification on the number of flashing types available.