Minimum Slope For Mangalore Tile Roof

Asphalt shingles continue to be the most widely installed roof covering option in north america.

Minimum slope for mangalore tile roof.

In general there is no maximum slope for tile roofs. As a thumb rule if the slope length is 10ft the slope height should be al least 3 5 ft. The minimum roof slope to the ground should 20 degrees. In traditional home construction it was not recommended to have a roof pitch lower than 20.

This means for every 12 horizontal units the roof must rise a minimum of two and one half vertical units. These kinds of tiles are most popularly used in canara goa kerala and the konkan. The tiles get their robust red colour due to the high proportion of iron compound found in the laterite clay. Concrete is long lasting with a minimum lifespan of 50 years depending on climate.

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. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. However with modern roofing materials such as boral roofing tiles the minimum roof pitch can be as low as 15. However on extremely steep roofs above 19 12 or on vertical applications wind currents may cause tiles to rattle.

Kindly ensure the angle specification for every fabricated roof should be in like with the above specification. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Minimum roof slope roof pitch r905 3 2 clay and concrete roof tiles can only be installed on roof slopes of 2 1 2 12 or greater.

Sunday july 1 2018 the international residential code irc specifies a minimum 4 12 pitch 4 inches of vertical rise for every 12 inches of horizontal run for a clay or concrete tile roof except that a pitch as low as 2 1 2 12 is allowed when two layers of underlayment are applied. The mangalore tiles are generally placed inclined at forty five degrees. To avoid this use wind clips on each tile along with a construction grade silicone sealant or other approved sealant. Although the minimum roof pitch for residential homes may vary depending on city and state building codes.

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. Ratios from that minimum up to 4 12 which are considered low pitch require double underlayment. The irc recommends a minimum pitch of 2 5 12 for these materials. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.