Conclusions of the low pitch slate roof testing.
Roof tiles 22 degree pitch.
Down to 22 5 degree pitches at a 75mm headlap.
If you have a small house or double storey i would increase in the pitch.
Popular applications include extensions where windows or planning restrictions prevent the use of standard roof tiles.
It depends on the width of the house.
What degree angle is a 12 12 pitch roof.
Low pitch roof tiles are thought of as those that are suitable for laying on roofs at 20 degrees or less.
If your single storey house is wide then by default on 22 degree pitch you will get good height.
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.
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.
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.
They can be used at pitches as low as 12 5 degrees with a headlap of 92mm with rafter lengths up to 6 metres.
To convert between american roofing ratios and pitch degrees follow these steps.
Melodie clay single interlocking pantiles have a flexible gauge.
For more information see our blog post on batten spacing for roof tiles.
The interlocking technology used on the koramic 401 flemish pantile allows it to go a fraction lower at 22.
Divide the first part of the ratio by 12 to work out the pitch.
You have to pay higher cost for steeper pitch.
I think it would be good to get at least 2 4 on the apex.
Forticrete centurion low pitch roof tiles are also able to tile a roof down to a 10 pitch.
8 12 pitch 33 75 degrees.
The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need.
These shallow pitch roof tiles are extremely easy to fit requiring a tile clip over the underlock and an aluminium nail into roof batten for any pitches below 22 5.
Measurement of your house roof pitch is one of the most important things while constructing pitched roof.
Concrete tiles and slates for low roof pitches.
A 12 12 pitch roof has a pitch angle of 45.
Where the minimum pitch for clay pantiles used to be 30 tiles like the redland cathedral pantile can be pitched as low as 22 5.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.
In 5 colours they re extremely durable and will perform reliably even in the most extreme weather conditions.
Look at the column labeled pitch then look under degrees to get the corresponding amount of degrees.
