Although ceramic tile roofs are expensive they can have a life span of over 100 years.
Roof structure plan.
Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.
Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates.
Such roofs are built with mostly timber take a number of different shapes and are covered with a variety of materials.
Put roof sheathing on top of your roof.
Usages vary slightly from region to region or from one builder or architect to another.
Place a piece of the plywood on the bottom corner of your roof making sure the edges are on a rafter beam.
Anything more than 9 in 12 is considered steep.
In modern double roof construction the whole of the roof is constructed of lightweight roof trusses called trussed rafters see module 4.
Roof terminology is also not rigidly defined.
Conventional slope roof range between 4 in 12 and 8 in 12.
The main factors which influence the shape of roofs are the climate and the materials available for roof structure and the outer covering.
Also different architectural styles will use the same type of roof.
These days cut ups or roofs with a lot of valleys dormers and other features are increasingly popular.
We will then discuss the framing square and learn how it s used to solve some basic construction problems.
Use 1 2 in 1 3 cm plywood to cover the entire surface of your roof.
A low slope roof is anywhere from 2 in 12 to 4 in 12.
Double roof with hipped end there are many designs and combinations of double roofs.
Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.
A 12 in 12 roof can cost up to 50 more than a 4 in 12 roof.
In many cases with purchased house plans the details of the roof construction including rafter design are included.
Steeper sloped roofs are considered more aesthetically pleasing and last longer.
But before discussing roof framing we will first review some basic terms and definitions used in roof construction.
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.
Hip roofs tend to be stronger than gable roofs but there is an increased cost in building a hip roof as it s a more complicated structure that requires more building materials and effort.
While hip roofs are stronger and more wind resistant they can be prone to leaks due to the increased level of joins required so care must be taken to.
It is often compared to slope but is not exactly the same.
Roof shapes differ greatly from region to region.
The design of the roof will depend upon the size and shape of the ground fl oor plan of the building.
Use construction nails 6 in 15 cm apart to secure the plywood around the outer perimeter and along each support.
