Sarnafil single ply membrane installed to a flat roof in York, incorporating a purpose-built insulated upstand ready to receive a roof lantern. The membrane has been carefully formed around the kerb, perimeter edges and adjoining masonry to provide continuous waterproofing, with the insulated upstand helping maintain thermal continuity around the roof opening.
Sarnafil Flat Roof with Roof Lantern Upstand – York
Single ply flat roofing with insulated upstand prepared for a roof lantern




