Flat Roof Frame Design

On a basic level flat roof construction comes in the form of roofing timbers or joists as they are more commonly known or steels that are laid across two uprights walls in most cases.

Flat roof frame design.

There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult. The steels or rsj s rolled steel joists are often built into one or both walls to give added stability to the roof structure. A flat roof has a slope of 1 8 per foot to 2 12.

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. From there the flat roof system you choose will determine the materials you apply. If you build a flat roof try to have it slope in multiple directions to drains or gutters. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof.

It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Roofs are basically five types. Jun 3 2017 explore anthony valentine s board flat roof on pinterest. Shed gable hip gambrel and mansard.

Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. See more ideas about flat roof steel structure steel house. Near the top is a very steep pitch and near the upper walls of the home are a lower pitch though still fairly steep. Think of a flattened hip roof.

Flat roofs create long horizontal planes reminiscent of the broad horizon line seen often in nature. Another common design in the northeast is the saltbox which is a gable roof with one longer side. They re simple in form and function and are a good example of the modernist principle of clean lines.