BRE Certificate
Certificate type
Air Permeability Test BS EN 1026
Lonsdale Patent Glazing & RooflightsCertificate available
Provided by BRE (Building Research Establishment)
Date of first issue: 19/12/2019
Products with this third party certificate
View all products (10)Glazing Bar System for Timber Rafters - 50 mm & 40 mm wide
Rooflight - Northlight & Longlights - For Continuous Strip Glazing
Rooflight - Ridgelight - Dual Pitched
Skylight - Shaped and pitched rooflights
Rooflight - Monopitch & Dual Pitched