To convert between american roofing ratios and pitch degrees follow these steps.
Roof tiles for 17 degree pitch.
Divide the first part of the ratio by 12 to work out the pitch.
This has led to a rise in low pitch roofing to accommodate these changes.
Low pitch roof slates.
Down to 22 5 degree pitches smooth with a headlap of 75mm down to 17 5 degree pitches smooth with a headlap of 100mm.
Conclusions of the low pitch slate roof testing.
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.
This low pitch roof tile gives the appearance of slate without the cost or the high maintenance.
A 12 12 pitch roof has a pitch angle of 45.
Marley mendip this tile can be laid to a minimum of 15 provided that the headlap is 100mm and you choose a smooth finish tile.
Generally 17 5 and below is considered a low pitch roof.
All of our products are offered competitive prices.
Manufactured from 100 recycled materials eco slate is available in grey and old world red.
Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used.
Outside of the u s a degree angle is typically used.
Browse our range of low pitched roof tiles and slates that can be used at a maximum pitch of 15 degrees.
The following roof tiles can be used on roofs with a pitch of no less than 15.
However this can vary depending on the manufacturer architect and installation company.
Granular coated tiles are only suitable for pitches above 17 5.
Eco slate is an environmentally friendly man made slate alternative that can be installed on any pitched roof from 10 to 90.
It can seem confusing working out whether to go with a low pitch roof and what this could mean in the long run.
Low pitch roof tiles are thought of as those that are suitable for laying on roofs at 20 degrees or less.
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.
Concrete tiles and slates for low roof pitches edgemere interlocking slate is a large format concrete roof covering with a thin leading edge for a slate like appearance.
Following the successful test results we are happy to advise specifiers and contractors that they can choose a siga natural slate roof as low as 15 degrees sheltered or moderate exposure and 17 5 degrees severe exposure if the slates are hook fixed with a 150mm lap.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
