Pitched Roof Structure Details

The two basic construction methods of pitched roofs are.

Pitched roof structure details.

Prefabricated trusses which are delivered to site and erected. Pitch is the slope or angle from the wall plate to the roof ridge line. Wooden battens also known as lath which are now usually tanilised pressure. 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.

Construction details for various types of expansion joints can be accessed from the specialty roofing products page on the johns manville website. Introduction to pitched roof details. It is simple in design economical to. Pitched roofs are one of the most common roofs and are generally considered to be the cheapest alternative for covering a building structure.

A traditional method of cutting timber on site and building up the roof using rafters joists purlins ridge. First of all there are many details to pitched roof types that can make construction more complex. A pitched roof is made up of four main elements. There are ridges eaves hips abutments and the centerline of the ridge.

Gable a gable roof has a ridge at the center and slopes in two directions. The roof is a key element of the building structure providing protection from the elements and has a vital role in reducing heat loss from the building. An example of each is shown in figure 2 1. A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc.

Some roofs have some of these aspects while other roofs may have all of these features. Click on the product type then click on technical then click on installation instructions. There are two basic methods of pitched roof construction. Some good construction details for roof to wall expansion joints are available on the copper development.

Pitch for a gable roof the most common is generally 1 4 or 1 3. The pitched roof is a type of sloping roof system and its construction cost is cheaper compared to another construction method. Pitch can vary a great deal from a shallow slope up to a very steep pitch. Wooden joists to support the weight of the roof a breathable membrane or in older properties roofing felt also sometimes called sarking felt or slaters felt which.

The complexity of pitched rooftop construction relies on a variety of factors. Roofs tend to be either pitched or flat and typically in residential construction timber is the most common material used. It is the form most commonly used by the navy. Which is equal to 1 4 or 1 3 the total span of the building not counting any overhang.

In a pitched roof system there is a deck or surface which has a gradual slope from the top of the roof or heap of the roof to cover all building structure.