When reroofing over peel and stick underlayment installed years prior you can generally place a new underlayment right over top of the original peel and stick then proceed with installing the new roof as normal.
Peel and seal on top of shingle roofing installation.
Once you ve reached the ridge bend the shingle over the ridge so that each side is equal and nail it into place with a single nail on each side.
By following this installation method you will not have.
Peel seal mfm building products corp.
Mfm recommends using two installers when using peel seal as a whole roof covering.
Do the same with the next shingle continuing this step until you get to the far edge of the ridge.
Peel seal is the original self stick roll roofing specifically designed for low slope residential and commercial applications.
Typically a flat roof is a low sloping roof with a maximum 10 degrees of pitch or usually having a slope of up to 3 inches per linear foot for adequate drainage.
Peel seal should be installed parallel to the slope of the roof.
Installation should begin at the low point of the roof and proceed up the slopeshingle fashion so water does not flow against the laps.
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