Residential Roof Framing Design

This makes the bonnet roof more expensive than other more simple designs.

Residential roof framing design.

Chapter 9 roof assemblies. Continuing on from part 3. See chapter 10 means of egress particularly 1011 12 stairway to roof 1011 12 2 roof access and 1011 16 ladders. A roof is an integral part of a building and people try to personalise the roof designs to achieve optimum architectural splendour.

Here we have a wood framed gable roof. It is a waterproofing layer made of regular felt stacked above the solid. Roofs are basically five types. The complex design requires more building materials and it s more difficult to construct.

Another common design in the northeast is the saltbox which is a gable roof with one longer side. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. Shed gable hip gambrel and mansard. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

These or similar load combinations are often used in practice as short cuts to those load combinations that govern the design result. Similar prescriptive design aids and efficient framing practices can be found in cost effective home building. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.

The colour and material of the roof complement the structural integrity of a building. Poorly constructed roofs endanger the people living in a building so you need to make the roof compatible to the rest of the building in a well engineered style. Also different architectural styles will use the same type of roof. In this post randy shackelford discusses some design choices available to stick frame builders the challenges they pose and the solutions offered by the simpson.

For high wind conditions prescriptive guidelines for design and construction may be found in the wood. 2018 international residential code. 2018 international building code. Let s consider a basic gable wood roof framing design.

The load combinations in table 3 1 are simplified and tailored to specific application in residential construction and the design of typical components and systems in a home. On the upcodes website. 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. Impact to building design.

A design and construction handbook nahbrc 1994.