Quote:
Originally Posted by dlphg9
Underlayment/felt is definitely a roofing component and it is fairly common to have to replace the underlayment on tile roofs. Im assuming he has an organic natural felt that turns to shit after its been on the roof awhile.
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Sure it is, you are right that roofing felt is a component. I've just never heard of felt being called underlayment. I get what he meant. No worries.