Lojen thatch and construction

ALL THE MORE THATCHED ROOFS THAT ROT

It has recently become common for waterproofing companies (paint and others) to test their products for fire spread and then make the allegations that they can be applied it to thatch grass or reed.
The tests they do are usually applied to a non-combustible surface (fiber-cement boards and then tested. These tests have nothing to do with what really needs to be done in terms of the National Building Regulations. The required test to be done is the SANS 10177-12 test series which stipulates that an accelerated environmental exposure test must be done, such an exposure test takes about 6 months after which the test roof must be tested against fire.
Furthermore, a roof covered with any non-combustible cover (cement or metal) is a greater risk in the event of a fire as you will not get water from the combustible roof.
Firelab's suggestion to an insurance company is usually that if the correct test protocol is not followed, the structure will not be insured. However, this will leave an unhappy client, but then the client will have to ask the company to replace the roof as they did not follow the procedure.

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