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How to install torch down roofing
Remove any old roofing, debris, or other objects from the surface that is to be roofed.
Removing old roofing is not always necessary; check with local building codes. Often, torch down roofing can be installed directly on top of old roofing.
Secure metal flashing to the edges of the roof area. Apply primer to the metal flashing to allow the torch down roofing to adhere to it more easily.