#15&#30ul felt

Old 03-10-06, 12:14 AM
Thread Starter
Join Date: Mar 2006
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Question #15&#30ul felt

Why woud my roofer order 10 rolls of 15ul felt and 7 rolls or 30ul felt?When the code in So Fla calls for 30ul. Is it just me or does that mean use all 30ul felt?
Old 03-10-06, 07:24 AM
Join Date: Jan 2006
Posts: 135
Upvotes: 0
Received 0 Upvotes on 0 Posts
There are times when 2 layers of 15# felt may meet the code for 30# felt.

For example, IRC Code requires a double layer of 15# when installing on roof slopes between 2:12 and 4:12. The layers are interwoven and overlapped by 17" on each course and effectively gives you 30# protection using only 15# materials.

Could be what you builder is planning.

No sense in using 2 layers of 30# when 2 layers of 15# is all that is required.

But you'll have to ask your builder just what his reason is in this matter.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: