Find roof panel closure strips at lowe s today.
Roof strip and replywood.
Building codes say you can put a second layer of shingles over the first layer but it s better to strip off the old shingles and start with a clean slate.
Loads will vary with the pitch of the roof.
However there is no easy universal answer if only one roof is in place.
Input project size product quality and labor type to get roofing underlayment material pricing and installation cost estimates.
There s anecdotal evidence that new shingles installed over old shingles won t last as long as a single layered roof most manufacturers offer the same warranty for both methods.
The process of removing the existing roof covering repairing any damaged substrate and installing a new roof covering.
In some cases local building codes will limit the available options most do not allow more than two roof coverings on a building.
Free online roofing underlayment cost guide breaks down fair prices in your area.
Most roofs will be sheathed in plywood at least 3 8 inch thick.
The most common uses for plywood include support for floors walls roofs and garages in residential construction.