Sarnafil Minimum Flat Roof Pitch

According to the international building code the typical built up flat roof that uses tar or asphalt goes by the guideline that for every foot 12 inches of a flat roof a minimum of inch must step up or down.

Sarnafil minimum flat roof pitch.

Sika limited strongly recommends that in accordance with bs 6229 2018 flat roofs with continuously supported flexible waterproof coverings code of practice and the spra code of practice a minimum 1 80 finished fall is recommended to both the general area of the roof and to any formed internal gutters. With regards to the pitch the building standard code bs 5534 recommends a minimum pitch of 200 for slate roofs. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Minimum roof pitch for shingles.

Sika sarnafil watchmead welwyn garden city al7 1bq 01707 394 444. Sarnafil s files cart allows for multiple files to be added and then downloaded or merged in one click. But since there is still a wide variety of slate roofing systems there are occasions when the minimum pitch can go down to as low as 15 0 depending on the uniqueness of the roof. 100 dan road canton ma 02021 phone 1 800 451 2504 sales 1 800 576 2358.

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. Sika sarnafil minimum requirements detail drawing pdf pdf 190 kb. The recommended minimum fall for a flat roof is 1 80 0 72. What is the minimum slope for an asphalt shingle roof.

This is the basis for calculating the angle which is approximately a 1 19 degree slope. Protected membrane roof sarnatherm lightguard system. Asphalt shingles continue to be the most widely installed roof covering option in north america. 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.