Unvented Flat Roof Model

3D Model

This model shows how we’d suggest you build-up your flat roof insulation to create an unventilated hybrid flat roof structure. It is important that the roof covering is not fully shaded so as to allow the roof structure to dry during the summer months. The Ampatex Variano membrane used on the underside of this construction is also very important to the functioning of this construction and must not be perforated.