I was going to install metal over shingle with out strapping because I installed a addition and that doof is attached to the other roof and if I strap this roof then in the valleys where the roofs meet there will be a gap and I am concerned that in the winter that ice will back up and get under the tin.Thanks
Guest User
2011-07-16 08:04:01.000000
This is acceptable with most products and in many cases. Always confirm that it is okay with the manufacturer of the product you choose. Also, I always suggest a layer of underlayment between the two materials.
Todd Miller
2011-07-16 08:15:50.000000
Underlayment is a must and very cheap investment to provide the proper slip layer and further water barrier.