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Rooflock Twelve is a BBA certified, liquid applied roof waterproofing system for pitched steel roofs.
It is widely specified for the protection of corroded metal roof sheets, in particular cut edge corrosion.
Applied directly to corrosion affected lap joints as an external seal, it has a strong adhesion to most metal roof coatings. With its high elasticity and flexibility, it
withstands sheet movement and is unaffected by extremes of temperature.
Applied by a network of approved contractors, Rooflock Twelve is a very cost-effective method of extending the life of the roof with little disruption.
BBA Certified for in excess of 10 years
Simple to use
Cost effective method of extending life of roof
Unaffected by extremes of temperature
Applied without disturbing existing sheets or fixings
PVC based coatings
PVF2 / PVDF
Other RAL colours are available to order
What is cut edge corrosion?
Cut Edge Corrosion is the term given to corrosion that develops at the cut edges of a steel roof sheet. It can develop from poorly coated machined edges of the metal
sheets, or by breakdown of the original lap sealants, allowing water to be retained between the roof sheets. As the steel begins to corrode, the original coating peels
off and water is further retained between the roof sheets, exacerbating the corrosion further.
If unchecked, cut edge corrosion can progress to become a serious problem affecting both the weatherproofing and structural integrity of the roof. By addressing this
issue early with application of a dedicated metal protection product such as Rooflock Cut Edge Corrosion System, potentially costly and disruptive remedial action
can be avoided.
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