Minimum Pitch For Tiles Roof

Low pitches are often found on extensions to properties where the angle of the roof is limited due to obstructions such as.

Minimum pitch for tiles roof.

Underlayments play a key role in tile roofing since most tile roofs are not completely waterproof. Both clay and concrete tile are available in many colors and are naturally weather resistant. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. At a minimum use a type ii no.

You can also estimate a roof pitch by eyeballing it from the ground from the gable side with a level and ruler. 43 felt lapped 2 inches on horizontal joints and 6 inches at end laps. Concrete is long lasting with a minimum lifespan of 50 years depending on climate. Let us recap on the minimum roof pitch required for each type of roofing material.

The minimum roof slope allowed by code for any type of roofis in 12 applicable only to coal tar pitch roof systems. For example if you used a 24 inch level and your measurement was 12 inches the pitch in your roof is 6 in 12. However with modern roofing materials such as boral roofing tiles the minimum roof pitch can be as low as 15. 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.

Divide the results by the number of 12 inch segments in your level. Although the minimum roof pitch for residential homes may vary depending on city and state building codes. Clay tiles are colorfast which means their tints improve rather than fade over time. Some tiles and slates incorporate design features allowing them to be laid at a low minimum pitch.

Asphalt shingles require a minimum roof pitch of 2 12 or greater. Metal roof shingles require a minimum roof pitch of 3 12 or greater. The irc recommends a minimum pitch of 2 5 12 for these materials. The minimum pitch for each product can be found in the table below and in the product brochure or within the products pages.

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. Because of the long service life of tile a long lasting underlayment should be used as well. Design considerations11 code considerations 12 standards 12 bushfire attack levels bal 12 wind forces 12 terrain categories 13 basic wind regions 14 fixing tile roofs in cyclonic regions 15 minimum roof pitch 15 maximum rafter lengths 15 maximum rafter lengths no sarking 15 sarking 16 insulation 16 ventilation 16. Asphalt shingles continue to be the most widely installed roof covering option in north america.