WHAT IS A ROOF SYSTEM?
• A Roof System is made up of all of the components required to make a weathertight seal between exterior elements – rain, snow and wind – and the interior of the structure. Although related, the roof does not protect the interior space of the house from attic moisture, caused by inferior air-sealing, insulation and ventilation. In residential sloped roofing, the building envelope, very seldom, includes the roof itself – it is an umbrella to shed water.