Waterproofing of the roof, useful tips

Waterproofing roof by means of roll materials carried on roofs with inclination angle up to 60 degrees. That inclination angle and determines the number of layers of waterproofing material and the reinforced mastic.

Waterproofing is made on any base material of the roof: wood, concrete, plastics. Also, the protective coating material can be laid on the old roof.

In carrying out waterproofing roof mastics rolled materials are not used. The advantage thus created roof mastic is concluded that the result of the work is seamless membrane. Since this coating is made directly on the roof, do not conduct further preparatory work is needed. Mastic also has properties of adhesiveness to the materials of construction of the roof.


Bitumen-polymer sealant to be applied to the concrete base, solidifies and forms a solid and elastic membrane. Frozen coating looks solid and homogeneous.

These mastics have high strength, resistance to environmental attack. Bitumen-polymer mastic easy, flexible, non-oxidizing, not afraid of exposure to ultraviolet radiation. They are durable and can be operated at a temperature -600S - + 1000C.


This method of sealing is most relevant in the application for protecting roof structures having a large number of (different supports for the equipment to stretch antennas).
Waterproofing materials for roofs roof divided into two types: anti-condensation and waterproofing film (diffusion membrane).


Placement of the membrane produced on the insulation, which greatly reduces the thickness of the roofing "pie" layer. This allows you to put more and more insulation. Windproof membrane reduces the amount blown from the surface of the heat insulation.


Diffusion membrane - this most often reinforced films of polyethylene or propylene with perforations. Tiny holes miss pairs, but will delay the moisture. These films work well, provided the creation of air gaps in the following cases:
- between the material layers of waterproofing and insulation
- between layers of roofing material and waterproofing.


If the roof leaks -gidroizolyatsionnaya film is mounted directly on the rafters. between rafters must be not more than 120 cm. The magnitude of sag film can not exceed 2cm, but the film must not touch the heater. After strengthening the film nailed to the rafters and is counter-lathing.


Choosing waterproofing material, you should consider its compatibility with the topcoat, ie roofing material.
Waterproofing materials, depending on the type of roof material, or absorb, or pass steam. You should know what kind of party to such a film should be directed to the roof, and some - to a heater.

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