How Much Hotter Is It On A Roof

Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

How much hotter is it on a roof.

Plus new coating technologies are being developed all the time. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. In cold climates roofs can accumulate moisture through condensation and it is possible that cool roofs might be more susceptible to.

A dark roof won t necessarily get that hot if you don t live somewhere that gets a lot of heat in the first place. Some roof coatings include special chemicals that prevent mold or algae growth for a few years. The hotter an attic is the more expensive it is to cool the upstairs of a home. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic.

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. This can easily create attic temperatures as high as 125 f. Yes black will be hotter. It s definitely something to consider when re roofing and in a new construction project and you might be able to take steps to cool things down on the roof you already have.

It is often compared to slope but is not exactly the same. Hot air exhaust vents located at the peak of the roof allow hot air to escape. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. Traditional roofs employing asphalt shingles vented attics and insulation on the floor of the attic can get extremely hot with surface roofing temperatures reaching up to 190 f during the summer.

However the color of your roof could make a difference to things like energy bills and how much heating the rest of your home needs. In warm moist locations cool roof surfaces can be more susceptible to algae or mold growth than hot roofs. Color of your roof as you ve probably heard from many the color of your roof does affect how much heat is absorbed into your attic.