Framing Flat Roof Plan Drawing

Let s consider a basic gable wood roof framing design.

Framing flat roof plan drawing. Roof framing with trusses. Also known as the french roof the mansard is characteristic of french building architecture though many homes take advantage of it s framing design. Flat roofs are always built at a slight incline at least 1 8 inch per foot. Old asbestos roofs are often replaced with flat roofs.

This will help you create a flat roof framing plan. 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. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. So any timber joists that are used need to be strong enough to support this weight.

Continuing on from part 3. Sizes of joists needed for flat roof construction. The roof forms the upper limitation of a building. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.

You can do this with a foam layer that exactly fits your roof. The point at which all the rafters are. Of course you don t need to live in a modern house to deal with a flat roof. Our garage plans are to designed to irc building code conventional framing details.

Also different architectural styles will use the same type of roof. Some roofs actually slope in several directions ensuring optimal water runoff. Regarding roof shapes there are flat roofs and inclined roofs flatly inclined roof steeply pitched roof the flat roof has an incline of 0 degrees up to maximum 25 degrees country specific differences. Many of the plans use manufactured roof trusses and others use conventional rafter and joist framing.

Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss. Framing a roof architectural drawing. Label and identify the parts of a roof framing plan. Here we have a wood framed gable roof.

When framing a flat roof you will need to create a slight incline. They can be manufactured or pre made or you can make your own. I like the challenge of drawing it up. All behm design garage plans include foundation plans and details using industry standard materials and assemblies.

In case of a higher roof pitch it is called inclined roof or monopitch roof. It may consist of a flat roof on top but the main design element is the multi pitch sloped in what is essentially a hip roof on top of another hip frame. Parts of a roof a ridge board is a horizontal member of the roof frame. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof.

Sometimes it s easier if the shed is an odd size or shape. Objectives define ridge board rafter hip valley sheathing fascia soffit dormer and pitch. Framing the roof using trusses instead of rafters is another option.