No Furring Strips Under The Tile Roof

This does not work well with asphalt shingles because asphalt shingles are designed to go into plywood which has no gaps.

No furring strips under the tile roof.

When finished there should be a row of furring strips stretching from one end to another with the top edge aligned at the peak. There is a new synthetic material on the market that is used for furring strips under a roof. The gaps in a furring strip roof mean that many of the nails in an asphalt roof will not be. 1 you said some metal roofing should never have firring strips i have certainly seen that with some of the very thin steel or weak aluminum decking which could never stand even a foot of free span over firring strips without crumpling buckling under someone walking on it so they would have to lie flat on the water barrier over the sheathing.

I mention this because some metal roofing shingles requires a horizontal purlin for attachment purposes. Furring strips are 4 wide boards that are spaced apart several inches to hold up cedar shakes while allowing them to breathe. The final step is securing a secondary row of furring strips along the roof. They re installed before the tile is laid on the roof and may serve more than one purpose.

For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes. If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot. Find roof panel closure strips at lowe s today.

But roofers can install a vented metal roof that eliminates this potential problem. Place it two feet apart from the first row. It is grooved so that it can be installed horizontally.