Flat Roof Framing Details

From there the flat roof system you choose will determine the materials you apply.

Flat roof framing details.

Waterproof membrane to prevent water penetrating the structure and interior of the building. A flat roof has a slope of 1 8 per foot to 2 12. It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Details for conventional wood frame construction the first approach to achieving a strong durable struc ture involving economical use of materials is to follow a.

This will help you create a flat roof framing plan. This flat roof covering can be roofing felt usually 3 layers with a mineral chipping topping to soak up the heat of the sun which protects the felt from both melting and breakdown under uv rays. The run or half the building span is the base of the triangle. Frame the roof photo by russell kaye the most important thing to know about a flat roof says tom is that it s not flat to prevent water from pooling and eventually invading the home flat roofs are always built on a slight incline at least 1 8 inch per foot.

If you build a flat roof try to have it slope in multiple directions to drains or gutters. The rise or height of the roof at its peak is the altitude of the triangle. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board. You can do this with a foam layer that exactly fits your roof.

Some roofs actually slope in several directions ensuring optimal water runoff. This ethylene propylene diene monomer rubber covering is very versatile long lasting and very strong. The flat roof covering can also be epdm. Think of a flattened hip roof.

Flat roof construction for residential. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal.

A flat roof usually consists of the following. When framing a flat roof you will need to create a slight incline.