Clay tile roof slope sheathing underlayment specifications include defining thte roof slope requirements for clay tile roofs and roof sheathing requirements for clay tile roofs and also clay tile roof underlayment requirements.
Minimum slope for roof tiles.
The irc recommends a minimum pitch of 2 5 12 for these materials.
Minimum requirements are nominal 1 inch for board sheathing or 15 32 for plywood and other approved panel.
Traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15.
Lapped nonsoldered seam metal roofs without applied lap sealant must have a minimum roof slope of 3 12 25 slope.
The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.
This means for every 12 horizontal units the roof must rise a minimum of 3 vertical.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
The minimum roof slope for metal roof panels depend on 3 different scenarios.
Metal roof panels minimum roof slope roof pitch r905 10 2.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
Clay tiles are colorfast which means their tints improve rather than fade over time.