To preserve the non-fragility classification and service life guarantee, in most instances rooflights would require replacement. Small areas of damage that appear slightly cloudy or as a ‘bloom’ where the structure of the rooflight sheet has not been compromised, and the surface film is undamaged, do not generally require any remediation. Any more serious areas of damage where the rooflight appears to be white or crystalline in appearance, or where the surface film is damaged normally require replacement.
Suitable repair systems that might be available or offered on the market do no carry any guarantees of value and their application may cause further detriment to the product.
Rooflights should ideally be inspected on delivery and should not be installed wherever any damage exists. For further information, please refer to the Zenon document covering this subject.
