Determine the degree of exposure where your fibre cement structure will be situated.
It is important to understand the windloadings of where you are situated in the UK to ensure that your roofing conforms to the correct sealing requirements.
In order to determine the degree of exposure where your structure will be situated, please examine the map below.
For buildings that stand above their surroundings (meaning that they have no windshields such as trees or hills due to being in an large open area), Briarwood recommend that the structure must be considered subject to severe exposure.
To understand whether your structure is in an area where it may be subject to severe exposure, the following can help determine the surrounding environment and whether it would meet the classifcation:
- Near the coast
- On a hill where the structure rises above the general level of trees
- Towards a cliff-face
- On the side of a valley
Keycode
Approximate volume of winddriven rain (litres/m2) per spell:
IMPORTANT NOTICE* For buildings which stand in surroundings where it is in open country with no windbreaks (especially including sites located near the coast, on the top of hills), Briarwood recommend that the specifier and designer contact us as their structure may be subject to severe exposure.