These membranes at best last 50 years and at worst need to be replaced every 10 or 15 years.
Roof coverings for pitched roofs.
Pitched roofs can be finished with a variety of roof coverings.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
Composition shingles are divided into two types.
The gentle slope of a hip roof with its trapezoidal sides and pyramid like elegance is a graceful traditional design that pleases the eyes and can be constructed in a combination of various unique styles.
Generically called asphalt shingles these cover 70 of all roofs in this country.
A gable roof is shaped like an upside down v and is sometimes referred to as a dual pitched saddle saddleback or peaked roof.
Even steeper are many mansard roofs and parts of gambrel roofs such as on barns which may have 20 in 12 pitches.
Where pitched roofs have a wide variety of roof shingle materials to choose from flat roofs are somewhat limited by comparison.
Wood shingles photo 1 are combustible but can be treated at the mill with fire retardant chemicals.
In this article you can read more on the different types of roofings for sloping roofs together with their prices.
In case of a pitched roof you can choose between many types of roof covering.
Most roof coverings can be applied on roofs as shallow as 2 12 as long as a fully waterproof membrane is installed over the decking.
A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.
For pitches of 2 5 12 up to 4 12 the roof requires double underlayment.
Discover other useful info about sloped roofs as well.
Click to enlarge any image or table in this case the finish roofing material whether asphalt shingles wood or tile functions mainly as a decorative element but also helps protect the underlying membrane.
The most frequently used materials are ceramic roof tiles slates and reed.
Thatched roofing.
A 12 in 12 pitch is a steep 45 degree angle roof.
Most flat roofs are covered with a membrane or built up materials.
The installation of slates on a pitched roof requires more expertise as compared to roof tiles.
Roof tiles have been used as a roofing material for pitched roofs for ages.
Possible roofings for pitched roofs ceramic roof tiles and concrete tiles.
Pitched or sloped roofs range from a moderately sloped 3 in 12 pitch to the 45 degree angle 12 in 12 slope commonly seen on a frame roofs.
4 12 to 20 12 pitches.
Roofing materials for pitched roofs include the following.
Metrotile s specialist lightweight roofing can be installed as low as 10 degrees which is the lowest available on the market.
See the image below for more explanation on rise run and pitch.
