History The first and very important stage is the roof evaluation whose several points are to be checked. Ventilation insulation, vapour barrier, structure, roof pitches with positive drainage, masonry etc... The second stage is the design of the specifications ensuring all its points are being fulfilled and they will be clearly detailed on your free tender. At the third stage, when signing the contract, you will be given our technical book that explains all materials employed and the way of installing them along with technical photographs and drawings to help you understand your new roof, including there the maintenance manual that indicates all the directives to be followed to prolong your roof performance and lifespan. 2006 © Couvertures Blanchard & Fils. All rights reserved