The life of the whole house depends on how well the roof is made, and the comfortable atmosphere in it. Heat loss through the roof can make the room too cold, and insufficient waterproofing will inevitably lead to
leaks. So each layer of coating in the so-called roofing cake has its own meaning.
What are roofs?
Depending on the structure of the roof, the materials necessary for its decoration are also determined. There are two main types of roofs: flat and pitched. Pitched roofs are more suitable for buildings in a temperate climate, as they can more easily tolerate a large amount of precipitation. Flat roofs are more suitable for service or technical premises, sometimes they are made as an exploited area, placing terraces or a winter garden there. Accordingly, the roofing cake is also changing. Not all materials are suitable for finishing a pitched roof, not everyone is suitable for creating a terrace roof. In addition, the role and purpose of the premises under the roof plays a role. If this is a technical room or a cold attic, work on insulation and insulation will not be the same as in
case with the usualresidential building.
What does the roofing cake include?
So what is the “recipe” for roofing cake? Its components include interior finishing of the space under the roof, a couple of centimeters of air gap for ventilation, a layer of special vapor barrier film, a layer of thermal insulation located between the rafter legs, waterproofing, sheathing and roofing material, as well as gutters and railings or bridges for safe movement on the roof, snow retainers for safety in the cold season and decorative elements, such as weathercocks. A roofing pie for a flat roof does not imply snow retainers and decorative elements. In addition, in some cases, the roof is located on the ceiling, and not on the rafters. If the room under the roof is reserved for technical purposes, it does not require roof insulation and vapor barrier - insulation layers will be located on the floor, protecting against
heat loss of the room below.
Roofing cake for soft tiles, bitumen and other materials
In the case of a roof covered with bituminous tiles, a layer of waterproofing material can be excluded from the cake. Bitumen creates a waterproof coating without additional films, waterproofing is required only at joints, corners and cornices. Moreover, it is necessary to lay such a film right before the installation of the roofing material, and not under the crate. If a roofing pie is created for a roof from soft roll coatings, an additional element is required - a lining. This isa polypropylene film that guarantees waterproofing when covered with a layer of absorbent woven material made of viscose and polypropylene. For a roof made of metal tiles or rolled sheets, an additional layer of sound insulation is required, otherwise it will be too noisy in the room during rain. Thus, it is obvious that some layers of the roofing cake are always present in it, and some are determined by the type of a particular structure.
