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KeyWallet - Free Password Manager Forum Index Program Features Suitable for geothermal heating floor
  
KeyWallet - Free Password Manager Forum Index
Author Suitable for geothermal heating floor
wangkiky

Joined: Oct 21, 2015
Posts: 6031
From: shanghai,shanghai
  Posted: 2016-02-11 00:22

Currently on the market are mainly floor laminate flooring, multi-layer solid wood flooring, solid wood flooring, bamboo flooring and PVC flooring and other broad categories, has emerged in recent years, high-grade cork floor, then, what kind of floor to use it most suitable for floor heating ?
1, is transmitted to the surface to warm through the ground heat source, through the radiation process to air warmed. So impede heat transfer only concrete and floor decorative layer, the thermal conductivity of concrete is 0.8 ~ 1.4W / (m? K), the thermal conductivity of wood flooring stripes is 0.070 ~ 0.233W / (m? K) is a poor conductor, Then we want to achieve results, wooden floors must reduce its thickness up.
Floor heating is intended to meet the indoor temperature, the state floor radiant heating technology point of order JGJ1402-2004 3.1.2 requires the design of ground temperature is 24-28 ℃. 12 ~ 16mm thickness of the floor is suitable for floor heating, such as the design of special needs will only increase the water temperature to warm the pipe, which will reduce the life of floor heating systems. The floor temperature is too thick upper and lower surfaces of the difference is too big for a long time causes deformation of the floor stretching inconsistency.
2, to warm the surface temperature is about 30 ℃. When formaldehyde emission at 20 ℃ which is about 10 times the 15 ℃, then in the case of 30 ℃ should be a great value. Formaldehyde on the human body injury is we basically common sense, why would the use of formaldehyde which floor? Because formaldehyde is a variety of gels and paint diluted with dry cheapest economy, the manufacturers just to reduce costs for the purpose. Current Chemical Technology has been fully able to produce formaldehyde-free products, but the price is higher. National standards for floor level E1 ≤1.5mg / L, it is the floor in the general provisions, to warm the floor that should be free of formaldehyde in order to ensure the health of consumers, but it is not impossible. Because in natural wood inside also contains a small amount of formaldehyde, the new clothing will also have a small amount of formaldehyde, leather, we drink the water, but their content is small, it does not cause harm to humans.
3, the current method of floor coverings in China is mainly suspended, this method is in the ground layer of the floor mat was then laid on top, and the ground floor to address the attack sound. Suspension process produced in conjunction with the ground layer of air layer, thermal conductivity of air is poor, only 0.01919w. k / m, but much better than the keel suspension mounting method, compared with the keel installation, which is connected to the ground more closely.
4, solid wood flooring thermal expansion rate is about 1%, the value is in the case of wood flooring moisture content below 15%. The higher the moisture content so that the greater the shrinkage, so when you want to leave a lot of pavement wall joints. Stress industry standard telescopic thermal expansion rate of 5.2 to warm the floor 0.3-0.4% in its internal release should be completed in time to warm the dedicated floor coverings do not have to set aside joints.
5, floor heating surface temperature is about 30 ℃, for any wood floor is a challenge. In this temperature will not be deformed? To achieve long-term deformation at such temperatures, must have a scientific theory. Floor inside should be balanced and reasonable, then only in the case of wood texture crisscross will not deform, and have to be multi-layered criss-cross, only to meet this requirement multilayer wood.
6, retractable telescopic floor surface paint with wood is different. Paint small, large timber, in case of high temperature will be more obvious manifestations until crack and fall off. Paint adhesion is critical, based on experience, the worse the adhesion of the paint thicker.
all link:
pre assembled wood fence panels
Exterior Foam Insulation on Wood Frame
best exterior wall cladding on farmhouse


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w147258

Joined: Apr 09, 2016
Posts: 77
From:
  Posted: 2016-04-09 02:42

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