Regardless of the roofing type (flat, pitched) and of mild or stiff roofing materials used for roof coating, the roof waterproofing mainly aimed to the lock of humidity access to the underroof insulant, and both from the outside and from the inside (vapor barrier). Besides, the roofing waterproofing serves as a second protection line from the direct precipitation penetration and tough consistency, ecological compatibility, and, of course, life duration requirements are imposed to it, because the replacement of collapsed waterproofing layer is always coupled with big financial expenses and building/construction exploitation limitation.
Waterproofing roofing materials types
There exist a great number of waterproofing roofing materials that help to conduct roofing works:
- bitum materials;
- metal roofing;
- ceramic materials (roof tile);
- and other materials.
Waterproofing roofing materials, besides the construction protection from environmental factors, are also designed to provide normal exploitation conditions of the warmth-keeping material.
In order to make the heat proof more effective, the fulfilment of two important conditions is required:
- the protection from humidity penetrating from the outside;
- the heat proof protection from humidity, occurring with evaporations inside the building and with condensed water occurring on the roofing material.
Special waterproofing and vapor-proofing roofing materials effectively cope with mentioned tasks. The today’s market is rich in different waterproofing roofing materials, but membrane materials are still of top priority. Underroof membranes are able to provide correct roofing functioning, staying at that environmentally friendly. This is why the most part of professional building owners choose them.
Waterproofing roofing membrane materials are widely used on pitched roofs for metal tile, roofing tile, asbestos slate covering as an additional barrier from humidity penetration.
Specified requirements to roofing waterproofing
Waterproofing roofing materials, used for work execution, should be characterized by the following features:
- mechanical stability;
- thermal-insulating properties;
The waterproofing roofing material should be attached to the roofing foundation, what provides the material integrity at rush of wind.
Saving heat is one of the preferable, but still not essential requirement to waterproofing. The combination of cold and humidity protection in one material is an ideal solution for a house.