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What is the whole heat exchange fresh air ventilator?
Second, the new insulation decorative board is integrated through the production line, set insulation, waterproof, finishes and other functions in one, is to meet the current housing construction energy needs, improve the industrial and civil building exterior wall insulation level of the preferred material, but also on the existing Building energy-saving transformation of the preferred materials
In the design, the building structure and the hydropower are generally designed by the Architectural Design Institute. The air conditioning ventilation is based on the design of the room. Or first air conditioning ventilation? More
Polystyrene should not be polycyclic aromatic. Polycyclic aromatic groups generally refer to aromatic groups when multiple benzene rings are used. Not all of the hydrocarbon chemical products are carcinogenic, and our bodies are producing hydrocarbon compounds all the time. Polystyrene carcinogenicity is small. General benzene ring on the more substituents, the toxicity is relatively small, such as toluene is less than the toxicity of benzene. Of course, there are many compounds with benzene ring, so there are a lot of scholars to study with our body creatures do not meet the quality of raw materials to do the polymer, such as lactic acid production of polylactic acid, but the current Can be put into use much.
I added the space 18 degrees opened for 5 hours or not cold, we all know how is it? More
Common points are all sandwich panels, with a hard protective layer, the difference is the middle of the different materials, such as polystyrene board, polyurethane board. Polystyrene board which is the most common, because the price is cheap, easy to use so the use of more, but if the temperature is more than the requirements of the chicken inertia glycosylation moxibustion slim faint words, polystyrene board is not satisfied , So there is a polyurethane sandwich panels, polyurethane thermal conductivity of less than 0.. in the existing insulation materials, large quantities of processing, be the best. But because of its process is more complex, and the cost is relatively high, so with less, the common combination of cold storage and the like, I believe that with the economic and technological development, polyurethane sandwich board market share will be more and more High
Air to water heater host and air conditioning host is not the same
You can try asphalt! Is the kind of paving the way! Very useful!
HVAC Heating: What are the main components of the air distribution system?
Geothermal construction, the heating pipe spacing can not be less than 100mm, the construction can not be achieved, big brother!
Do 3cm thick wall insulation how much kilogram of slurry and how many kilograms of polystyrene particles
You are talking about the construction measures it is not the house measures it, because the house has a construction of Huohuohuohuo number of leather and bronze sculpture drawings and specifications, high-rise building scaffolding should be lightning protection measures, that is, under the scaffolding around Reliable grounding (not less than four times, not less than 16 square copper core BV line), if it is pick plus, and the house can be connected to the pressure ring. Tower crane I will not say, upstairs has been said.
External wall insulation method of operation There are several combinations of materials
30-150 per square meter has, mainly to see the material, thickness and so on
Air conditioning ventilation when the sound is a big reason
No matter, it is best to cut the distance between the material and the roof, like an arbor. Otherwise it is not foam board with it