Construction details for various types of expansion joints can be accessed from the specialty roofing products page on the johns manville website.
Roof structure detail.
Roofs are also designated as warm or cold roof depending on how they are designed and built with regard to thermal building insulation and ventilation.
Click on the product type then click on technical then click on installation instructions.
The steepness or roof pitch of a sloped roof is determined primarily by the roof covering material and aesthetic design.
The building regulations in the uk provide guidance on roof design.
Flat roofs actually slope up to approximately ten degrees to shed water.
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.
Curved roof shapes are currently the height of fashion at least on upmarket.
Roof structures roofs section1 module 3 sheet 5 12section roof structures types of roof structure traditional roofs can be divided into three main types of structure.
Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions.
Modern construction methods make use of another type of roof structure and this is known as trussed rafter roofs see trussed rafter roofs.
Timber is a heavy material that adds strength to your roof but comes at quite the cost.
If you have a structure with hips valleys and dormer windows you will probably do better to use one of the other roofing methods.
The speed advantages of panellised roofing begins to significantly disappear when the shape becomes particularly complex.