Konstantin Borovno Under the roof of your holiday home will be warm and fuzzy, if it is protected from the adverse effects of moisture. From precipitation and steam coming from the interior, save the waterproofing! The market today is so rich in all kinds of waterproofing materials that tell about all the impossible. Therefore, we consider only the basic ones. Membrane If you decide to cover a roof metal tile or natural tiles, then without a waterproofing layer is necessary. Materials such as asphalt and roofing felt, - a relic of the past era of No Return. Use them uneconomical. Cost, of course, relatively low, but then the torment is spent on maintenance and repairs. That's what the proverb "miser pays twice: The first decent contemporary material - Breathable underlay membrane, they are also called" breathable ". Superdiffuzionnye membrane. Vlagoizolyatsionnye these materials are very important for the device of the roof property: water vapor pass through them, and the water itself is not. Moreover, their water vapor permeability is so high (not without reason the super-prefix) that these membranes can be installed close to a heater, without the lower ventilation gap. Superdiffuzionnye membranes should not be applied to roofing materials, the flip side of which is not designed for frequent or prolonged contact with moisture. That is not suitable metal and corrugated bitumen sheets - evroshifer. But no problem, these membranes are used in ceramic and cement-sand tiles. Fixed superdiffuzionnaya membrane on rafters with kontrbrusa, which subsequently mounted corresponding roofing purlins (height kontrbrusa will determine the amount of ventilation gap). In this design the membrane freely flows emanating from a pair of insulation in the upper air gap, where they are removed from the air stream. Diffuse Water Isolation of the membrane. The task they have almost the same as that of superdiffuzionnyh - as quickly as possible to release water vapor in the upper ventilated clearance. Their structure is such that they work only in the presence of two ventilated gap - the lower and upper. In fact, these materials - nothing like plastic films, with only very small holes, as if pierced with needles. If pressed hard for such a film heater, the holes simply overlap and the membrane will stop flowing water vapor. Polypropylene membrane. Thanks to the micro in the form of craters, the wide side facing into the room, polypropylene membrane miss pairs, but delaying the penetration of moisture from the outside. Due to a better waterproofing of water vapor weathered, it is not necessary to arrange ventilation gap between insulation and waterproofing layers. This material is waterproof and windproof: not only protects against the penetration of atmospheric moisture, but also eliminates the blowing of the attic room. Polypropylene has a special strength, allowing the material can be stacked on top of crates with a rough surface. Breaks during installation can not be afraid. The second film progressive material - perforated and non perforated punch-reinforced film. In general, for waterproofing only used perforated film, punch the same - serve as a barrier to vapor. Antikondensatnye waterproofing film. They paronepronitsaemy and mounted with a metal tile and evroshiferom "- materials that do not get along superdiffuzionnye and diffusion of the membrane. Facing the side of the insulation film has an unusual fuzzy surface. Mandatory condition of these films is the presence of two ventilated air gap - the lower and upper. Under adverse conditions, the moisture retained on the lower surface due to the pile. Upon occurrence of favorable conditions the moisture is carried away by air rising along the lower air gap. Application antikondensatnyh films profitable for another reason: they extend the life of a cheap metal. Polypropylene film covered on one side special antikondensatnym layer. The advantages of reinforced polypropylene films are significantly higher (compared to films made of polyethylene), strength, and high resistance to ultraviolet radiation. Because of this polypropylene film with the necessary skills for the 12 months to protect building structures against snow and rain during the installation of roofing. Some types of soft tile roofs by themselves form a continuous waterproof carpet, for example - a flexible shingles, also called roofing or shingle, tile. There is no need additional waterproofing. Small flat sheets (approximately 100 x 34 cm) with scalloped petals clippings, or petals on one side, look great on the roofs of any architecture. Shingles is a multilayer structure. Base - pre-impregnated glass fiber modified asphalt. Fiberglass prevents deformation, which is very important for the material subjected to longitudinal stress. On two sides it is covered with a modified or oxidized bitumen. Applied to the top colored stone or mineral broadcast with, and bottom - silicon sand. At the bottom plane of each tile shingles (shingles) is applied bituminous adhesive layer. Adhesive layer is proposed today in two versions. The first - when the entire lower surface entirely covered with glue, thus ensuring complete integrity of the roof, as well as greatly simplified installation procedure. Second - when the adhesive layer covers 60% of the surface. At the plant a special silicone layer protects the film, which is removed just before attaching the tiles into place. When laying the overlapping sticky surface is superimposed on the stacked below the shingles and under the influence of solar heating plates are sintered. And in the first and second case, a completely hermetic, almost monolithic covering, concealing joints bands and cap mounting nails. Such a coating will not break wind! Unlike many of roll roofing, shingles are very soft withstands high temperatures on a hot sunny day (softening of the bitumen occurs at 110-120 ° C). Therefore, for fear that the coverage will slump for no reason. Even the pros. Soft roof has low thermal conductivity, so the lack of snow and ice avalanche on heating of the roof in the spring guaranteed. The roof was fairly easy to repair - is just cut the damaged area and glue the new shingles. Finally, the shingles are very well dampens noise created, such as rain or hail. Medium (confirmed by a written guarantee producers) life soft tile - 15 years. But with the technology of assembling the roof will last much longer - 30-50 years. Mastic for construction of new seamless roofs and repair of all types of old roofs applied bitumen-polymer and polymer mastic. With the help of mastic, a special type of flexible roof. They are applied in liquid form on the surface and form a waterproof film that is different from the polymer membrane lack of seams and joints. The elasticity of such a film allows you to keep a roof leak in the roof deformation. Mastic is a one-or two-component, which is poured on the surface of the roof. After curing coating appears as a monolith, like a rubber colored material. Such roofs are good for areas with harsh climates. Mastics are resistant to aggressive media, oxidation and UV radiation, corrosion resistance at temperatures ranging from -40 to +1000 ° C. Durable, flexible, easy - just eye rejoices: To lay down a layer of mastic evenly, the surface should be smooth. With a slope of the roof more than 12% and the outside air temperature above 250 ° C in the mastic is necessary to introduce various fillers (thickeners, cement, etc.) that increase its viscosity. Mastic - a really easy roofing material. Weight of one square meter of roof membrane, depending on the type and number of layers ranging from two to ten kilograms. Lifetime - 10 to 25 years. As you can see, waterproofing of the roof - a serious and responsible, especially for those who encountered it first. But it is absolutely necessary. Failing to provide waterproofing, you can not see how in care and maintenance will go to "own roof."
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