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Question DetailsAsked on 3/21/2016

Pros and cons of felt versus synthetic deck protector

pros and cons of felt versus synthetic roof deck protector

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1 Answer


First, I don't see any reason to use felt anymore unless it is to save a few dollars. 15 and 30 lb felt are what has been used for many years. They tear more easily when walked on by roofers and they are normally installed with 1000's of staples. Each staple is a possible perforation in the future if you have a shingle lift or blow off. The better synthetics are waterproof membranes designed to truly seal the roof from the weather. If installed correctly the roofer should be using cap nails (nails with an actual gasket to seal the hole). This is a better underlayment all around and on the slim chance your roof is not finished and it rains your home will not be in danger.

This is a more labor intensive install and more costly, but in the long run worth the extra investment.

I hope this helps.

Exterior Upgrader is owner of

Euro-Tech, Inc.

Servicing much of Illinois and Wisconsin


Answered 4 years ago by ExteriorUpgrader

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