Warm Flat Roof Construction Details Building Regulations

Flat roof details and information relating to insulating a flat roof.

Warm flat roof construction details building regulations.

A flat roof must be strong durable and stable throughout its lifetime. Flat roofs there are two common forms of construction for flat roofs. To enable compliance with the requirements of the building regulations to be demonstrated full details of the new roof will be needed including materials and their dimensions and performance properties. A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal.

Flat roof types. Cold deck this is where the insulation is placed between the joists rafters or in between the ceiling joists in the case of a pitch roof. Sometimes the excitement of starting a new construction project or building venture can lead you to forget about the finer details such as planning permission and local building regulations. There are two ways to insulate a roof.

There should be no insulation below the deck and no ventilation is required. Warm deck this is where the insulation is placed on top of the rafters joists and the roof covering is then placed over the insulation. These things will affect the timing cost and overall running of your project. No ventilation is required for these types of roofs.

Warm deck roof with this type of roof the insulation is placed above the roof deck but below the weatherproofing. The building regulations in the uk provide guidance on roof design. Flat roof construction for residential. Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off.

It must provide adequate protection against the elements keeping the buildings structure and interior dry.