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-   -   No Roof Underlayment (http://www.diychatroom.com/f9/no-roof-underlayment-95535/)

jeffk53 02-15-2011 09:24 AM

No Roof Underlayment
 
In 1992 I subcontracted out the roofing of a wood framed building we constructed. The roofing contractor used 3 tab fiberglass shingles and no underlayment. I seem to recall that the manufacturers recommendations were not to use felt paper. Can anyone confirm that at that time (1992) the use of felt paper was not recommended?

packer_rich 02-15-2011 10:21 AM

Around Northern Illinois that was common. I don't know for sure, but I think it had something to do with the use of OSB roof sheathing.

Slyfox 02-16-2011 05:34 AM

I was working "mostly" in the state of Florida during that period and never hear any mention of it in that area.
I ran the shingle roof crew which also was the dry-in crew for the tile roof installers.

Roofmaster417 02-16-2011 03:22 PM

I have to agree with Sly,I have removed plenty of roofs from that era and majority had felt.Although I have reroof lots of steep that had no felt.Whats the pitch?I think even now felt isn't required but recommended on steep pitches.I use felt on everything from 3/12 to a 24/12,every pitch should have some type of an underlayment.IMO


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