Two layers of astm 30 pound asphalt impregnated felt is the minimum you should use under tile and should last 20 to 30 years.
No battans under the tile roof.
Battens are not always used in a roofing system.
Can a metal roof be installed over my existing shingles without the use of battens.
We supply 38 x 38mm or 28 x 38mm non structural timber battens for tile roofs.
According to cemtile most roof tile manufacturers allow direct nailing but on roofs with a slope greater than 7 12 or on roofs.
The spacing of the battens depend on the type of roofing material and are applied horizontally.
The high performance values of steel roof battens means they are an increasingly popular choice for reroofing or for new builds using tile roofs.
Roofing battens or battening also called roofing lath are used to provide the fixing point for roofing materials such as shingles or tiles.
Shingles and tiles are affixed using the battens as spacing.
30 roofing felt is far better than unrated 30 pound felt which may weigh as little as 15 20 pounds.
If the roof has a steep slope battens may be required to hold the tiles in place.
Stramit top hat 40 are cyclone rated metal roof battens and may be used with concrete or terracotta tiles.
Many tile varieties possess a lip or hook that will hang on available battens.
Articles battens or no battens roofing installation q.
On roofs with a steep slope tiles are usually fastened to battens.