Dormers, Porches & Bay flat roofing


No more flat roof worries ever!

Sarnafil is virtually maintenance free & all our installers have a minimum of 17 years experience.
  • PROVEN TO LAST OVER 50 YEARS
  • INSURANCE BACKED GUARANTEES
  • APPROVED INSTALLERS FOR 17 YEARS
  • SOLAR REFLECTIVE
  • NO CRACKS SPLITS OR BLISTERS
  • ENVIRONMENTALLY FRIENDLY
  • NO MOSS OR PLANT GROWTH
  • VAPOR PERMEABLE
  • AESTHETICALLY PLEASING
  • VIRTUALLY MAINTENANCE FREE

Dormers and porches are an impressive feature on any home, give real kerb appeal and that all important additional living space inside. Most bay windows use traditional lead roofing material. Unfortunately, like many traditional skills and materials, it’s becoming increasingly expensive to install and there’s also the worry of lead theft. Roof Assured by Sarnafil offers an alternative for your dormers, porches and bay windows.

The Sarnafil single ply roofing system, can also be installed with improved thermal insulation, thereby meeting the latest requirements of the Building Regulations. This upgraded system ensures that porches and dormers will reduce the loss of valuable heat through traditional non-insulated roofs, saving money and reducing carbon emissions.