Minimum Slope For Flat Roof Philippines

However you can only use this pitch with built up roofing or specialized synthetic roofing.

Minimum slope for flat roof philippines.

It takes the manufacturer s recommendations the unique conditions of the roof as well as the skills and the expertise of the installer to arrive at the right slope. Choose your roof type carefully. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. The profile refers to the shape the metal sheets take when they bend to.

The required roof slope varies with application of materials and use. The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope. In general the minimum slope for a flat roof is 1 0 but as stated earlier this is only possible in theory. There is 3 main designs with millions of iterations but they all fall under one of these 3.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Asphalt shingles continue to be the most widely installed roof covering option in north america. First thing to consider is the roof structure itself.

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. See the below florida building code fifth edition 2014 2017 sections below to determine which slope is appropriate based on your specific design scenario. Starting with the very design of the house you can guard against strong winds.

The minimum roof slope requirement for metal panels varies depending on panel connection conditions. Depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered. We are ignoring the flat roof here so the other two are below. This is the basis for calculating the angle which is approximately a 1 19 degree slope.