Roof Pitch For Hot Climates

The cost of a.

Roof pitch for hot climates.

Even in these arid regions so called flat roofs are still installed with a slight pitch to keep water from pooling on top of the structure. This air cushion can cut cooling costs by as much as 20 percent. There are examples of bahay kubo with the house to roof ratio of one is to three meaning the height of the walls of the house is one third the height of the roof which makes for very cool interiors since the inhabitants are very far from the. A flat roof would have a 2 12 pitch while the average roof pitch would be between 4 12 and 9 12.

In fact in hot climates a metal roof creates vital airspace between the decking and the roofing forming a thermal barrier much as terra cotta tiles do. Any pitch higher than 9 12 is considered a steep pitch. The pitch of the roof is determined by the vertical rise in inches for every horizontal twelve inch length. It is the membrane painted over the top of the foam that you want to be as reflective and emissive as possible.

A good roof pitch would be atleast 30 degrees although traditional vernacular samples may go as high as 45 degrees which i think is better. Look up the product you are considering on the cool roof rating council s website for its initial and three year ratings. Roofs to beat the heat. Metal roofing can also be a very sustainable choice because much of it is produced using recycled materials.

Pitch is a measure of the steepness of a roof. Homeowners in extremely hot desert climates need a roof that will not absorb heat and draw it into the house.