Roofing films and membranes to protect the roof from moisture penetration beneath the surface, and provide free moisture evaporation, which remained under the roof.
Roofing films and membranes used for roof insulation, made of polypropylene or polyester. Membrane, made of polyester will be more expensive, embodiment than polypropylene. A good membrane for the roof must be resistant to mechanical damage, It should be waterproof but permeable to water vapor. Fully waterproof membrane does not exist. Membrane roof must also be resistant to UV-rays.
Most roofing membranes are composed of three layers, two outer layers – This non-woven fabric, the middle is a layer that does not allow water to penetrate, that is waterproof. Layers roofing membranes are interconnected by welding or gluing. A method for bonding the layers of the membrane is not very effective, so it is best to buy material which is made by a method of welding.
The membrane of the roof should be installed directly in the evening, when the sun comes, it is necessary to minimize the effects of UV radiation. Between the membrane and the roof is necessary to leave a space, to provide adequate ventilation and do not expose membrane overheating.
Do not skimp on the underlay film and membrane because it guarantees the integrity and ensures proper ventilation of the roof. The better the quality of the product you choose, the better it will perform its functions. When selecting a membrane is the most important quality – vapor permeability and water resistance, is to choose products, which have high levels of the above parameters. But it is also important such characteristics, as tensile strength and resistance to UV.
Council! It should be borne in mind, that any damage to the membrane, you must immediately remove, because in the future this may lead to leakage which adversely affect the condition of your roof.
among the products, available on the market, have reinforced membrane, which has an extraordinary strength, and membranes, which are coated with an anti-slip layer - which facilitates installation material. An interesting proposal is also a membrane, which is covered with a layer reflecting UV radiation, whereby the membrane in hot weather did not heated. To cover the roof of such a membrane is quite expensive, but it saves energy, in the winter, and summer.
Buy quality roofing materials is always possible in the online store “Our Construction”. More information at http://nasha-stroyka.com.ua or a representative of the company for t. (097) 836-81-82
