Standard Roof Tile Pitch

This part is well known as slope in geometry tangent function or stair construction in trigonometry.

Standard roof tile pitch.

The roof pitch is described by the vertical rise divided by horizontal span. The british standard for tilling and slating provides specific guidance about double lapped slating where calculations and recommendations for pitch and lap of slate are based on. Contemporary houses often have flat roofs which shouldn. Roof pitch is a measurement of a roof s slope expressed as a ratio.

Making decision about roof pitch. To calculate roof pitch take the lowest point of the roof and measure the amount of rise for every 12 inches of horizontal movement toward the highest point. A frame roof is the sharpest gable style roof resembling the shape of the letter a. It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5.

What is the standard pitch for a roof. Traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15. There is no standard universal roof pitch roof pitch varies depending on culture climate style and available materials in the usa the range of standard pitches is anywhere between 4 12 and 9 12 in the uk the typical house has a pitch between 40 50 although 45 should be avoided. It is a traditional roof shape employed everywhere from tropical huts to nordic ski chalets.

For example a roof that rises 3 inches for every 12 inches has a pitch of 3 12.