Stretching the limits of flexibility

Movement in roofs is mainly caused by thermal expansion and contraction of the roof structure or insulation. Thermal expansion occurs when your roof heats up and cools down from increases in temperature or changes in weather conditions. These movements must be taken into account and allowed for in the design of the roof or premature failure could occur.

Engineering material flexibility

To try combat the effects of thermal expansion and contraction, our engineering team developed FibreFlex, a technology that enhances the products flexibility without adding any after market additives which can lead to problems in the life cycle of a roof membrane.



A standard polyester GRP roofing system will provide around 1% elongation, this is often increased to 2% by adding a post-production plasticiser. Fibrelast with the FibreFlex technology offers 3% as standard without the need for any additives.



Fibrecoat is our flagship roofing product and is a polyurethane based fibreglass roofing system which is more flexible than standard polyesters. The product will offer over 25% elongation at break when used in conjunction with our 225gm fibreglass reinforcement mat.



Monopol is based on the same technology as Fibrecoat, although its main purpose is to be used as a professional roof repair and refurbishment product it will offer over 30% elongation.