Ice Dam

http://go.askthebuilder.com/NewsletterSignupNow founder, Tim Carter shows how ice dams form and explains how to stop the damage they cause. He also shows a second roof on the same house with… source

How to Prevent Ice Dams

This Old House general contractor Tom Silva shows how to super-insulate an attic for ice dam prevention. (See below for a shopping list.) Click here to SUBSCRIBE to the official This Old House… source