The Components of a Flat Roofing System

In the past, flat roofs were predominantly used on commercial and industrial buildings, but nowadays many commercial roofing Denver CO businesses also use flat systems on residential properties.. If you are currently in the process of designing your new home, here are the components that make up flat roof systems:

Denver residential flat roof

  • A roof deck – flat roofs rest on a substrate made from plywood, planks or boards that provide the base of all the other layers of the roof;
  • A vapour barrier – this component is necessary if the roof insulation will be installed on top of the deck (insulation can go underneath the deck as well);
  • Roof insulation – this layer usually consists of a fiberglass mat of the thickness determined based on the climate conditions of the area of installation, but there are other material options available as well;
  • A protection board – this layer goes on top of the insulation if the insulation is on the deck and directly on the deck if the insulation is underneath and it plays the role of evening the surface for the next layer;
  • The base layer – this is the first layer of the actual flat roof and it usually comes in the form of large felt mats rolled out on the surface of the roof and fixed into place with a method of choice;
  • The granulated top layer – the topmost layer of flat roofs consists of special granules to weatherproof the roof and to protect it against water, wind and solar radiations.

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