If anyone tells you that you can save "X" with windows, throw them out of the home. Will you save something, yes. Is is impossible to tell what that something will be without a laboratory environmen ... read more
Michael,
Eric pretty much nailed it.
It is not usually worth it in my opinion and especially given the nature of most leaks and the condition of most sheathing.
Roofs aren't cheap so I think the mat ... read more