What are the advantages of an integrated system that keeps roofs warm and waterproof?

Roof insulation waterproofing is a systematic project, resulting in leakage of more reasons, but the material is the basis of roof waterproofing, so to solve the waterproofing problem needs to start from the material aspect, and then consider the design, construction and post-maintenance management issues in turn. Therefore, if the insulation layer selects a foam insulation material with waterproof properties, it can solve this kind of problem from the structural design.
for now, on-site spraying hard foam polyurethane has excellent insulation performance, good closing rate, is a good water-repugnent material, in terms of quality and performance are trusted

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Larger , insulation and waterproof integration , double all-around , hard bubble polyurethane
good water resistance
polyurethane hard bubble is a structurally dense micro-hole foam body, closed rate of more than 90%, with smooth self-skin, so it has a high water vapor penetration and good impermeability.
the use of direct spray molding construction technology, so that polyurethane hard bubble layer becomes a seamless shell, forming a complete impermeable layer, eliminating the possibility of water seeping along the gap.
addition, it is firmly bonded with the grass, the bonding strength can exceed the tear strength of the foam body itself, not easy to separate from the grass, can effectively avoid leakage between the layers of water.
Insure energy insulation
insulation energy-saving energy-saving polyurethane hard foam material is a dense structure, closed non-connected pores, the pore rate of the material is large, there is almost no effect on the flow, so the thermal conductivity is low, thermal insulation performance is good, energy saving effect is obvious.
estimates, polyurethane hard bubble waterproof insulation integrated material thickness of 25 mm, to achieve 50% energy-saving requirements, when the construction thickness of 40mm can meet the national requirements for energy-saving 65%.
In practical engineering applications, the same building, compared with the traditional practice of roofing, polyurethane hard foam waterproof insulation composite roof indoor temperature can be increased in winter 5-6 degrees C, summer can be reduced by 4-5 degrees C.
high extrusion strength
polyurethane hard bubble surface density is small, high strength, large elongation, good impact resistance, not cracking, strong ability to adapt to substrate deformation. When its surface density is 35-40kg/m3 and the pressure resistance is between 0.2 and 0.3MPa, the elongity rate is between 10% and 14% on average.
Corrosive resistance
under the role of benzene, gasoline and other general solvents and thin concentrations of acids, alkalis, salt solutions and other environmental effects, polyurethane hard bubbles have good chemical stability, will not occur mold and decay.
Seven non-toxic
polyurethane hard foam non-toxic, non-irritating, safe and convenient operation, not like glass cotton in the operation of people to produce itching, will not parasites or bacteria, will not nourish parasites.
temperature range
at a low temperature of -50 degrees C, the volume shrinkage of the polyurethane hard bubble is less than 1%, there will be no brittleness and cracking, no significant change in volume and strength under 120 degrees C,
at a higher temperature of 150 degrees C, the polymer will not degrade, so it can be used at high temperatures. It does not melt drop like EPS or XPS materials, and polyurethane hard foam materials form a coking protective layer during combustion to inhibit the spread of combustion.
construction is
the use of spray foaming polyurethane hard bubbles, technology, equipment is simple, easy to operate;
material curing speed is very fast, after spraying 20min can be on the people, simplify the overall construction process, shorten the construction cycle,
suitable for any shape of roofing works, such as flat, facade, ripple structure, suitable for basement insulation and moisture, old roof renovation repair and transformation,
especially suitable for complex shapes, pipe vertical grass surface construction, easy to ensure the quality of the project. Polyurethane hard foam roof construction does not require large lifting equipment, a set of equipment in good conditions can be completed every day roof 1000m2.
A good durability
in order to ensure that polyurethane hard foam long-term waterproofing and insulation, so that its outer surface is not damaged by sunlight, atmospheric erosion and external forces, the outer surface layer coated with a thick 3-5mm waterproof, UV-resistant polymer mortar protection layer.
protective layer not only protects the waterproof insulation layer, but also has its own strong waterproof performance, the two materials bonded together, jointly assume the waterproof task of roofing, improve the durability of waterproof insulation materials.
a large number of engineering experience in developed countries in Europe and the United States shows that roofs with protective materials that protect against direct exposure to ultraviolet radiation can have a engineering durability of more than 30 years.