Flat Roof Frame Construction

A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal.

Flat roof frame construction.

And the line length measurement from the roof peak to the building wall is the hypotenuse. So any timber joists that are used need to be strong enough to support this weight. An example of each is shown in figure 2 1. It is not ideal for snow or heavy rain but modern materials and proper drainage have helped.

Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Think of a flattened hip roof. Waterproof membrane to prevent water penetrating the structure and interior of the.

A flat roof usually consists of the following. If you build a flat roof try to have it slope in multiple directions to drains or gutters. It is the form most commonly used by. A flat roof has a slope of 1 8 per foot to 2 12.

The run or half the building span is the base of the triangle. Framing a roof is the last step in framing new construction. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. 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.

One important and perhaps not so obvious fact is that a flat roof is not. Gable a gable roof has a ridge at the center and slopes in two directions. Old asbestos roofs are often replaced with flat roofs. If you want a diy flat roof here are the steps to follow.

Sizes of joists needed for flat roof construction. Below is an easy to follow manual for building flat roofs including a guide to flat roof framing and installation with plenty of details and specifications about the frame. Common types of roofs and basic framing terms. Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to.