Protecting your roof during the winter

The Onduline products fixing specification’s in relation to wind loadings have proved themselves more than capable in dealing with even UK extreme gales and weather events being tested to withstand wind speeds of up to 120mph (192kph - 53.6 m/s); therefore the risk is more to the integrity of a building and its roof design. Onduline sheets will rarely have part company from the roof structure; rather it is the buildings structures which are likely to fail resulting in their damage beyond economical repair.

For example: A timber frame building which has been designed for use in a typical low elevation sheltered location and which under normal conditions will provide years of trouble free service; However, the same building erected on an exposed elevated coastal site and being subject to much higher wind and snow loadings without upgrading the building’s structural design is likely to be at risk of structural failure; which can be both dangerous and expensive to resolve far exceeding the cost of upgrading the original roof structure.

Causes of roof failure during gales and snow loading is the failure to fix the product correctly in accordance manufacturers fixing instructions. We therefore advise that the fixing of your Onduline roofing product is checked to ensure it is in compliance with the relevant fixing instructions.