草草国产成人免费视频_日韩欧洲旡码专区在线_日夜男女高清在线免费观看_亚洲另类春色小说_国产日韩欧美在线看_国产日韩一区在线精品_狠狠色综合网丁香五月_综合精品二区国产中文字幕_小说专区亚洲春色校园_少妇人妻激情按摩系列

There is a low-cost external wall insulation material with a certain thickness, that is, the economic thickness. When the thickness is greater than or less than this insulation layer thickness, the total investment cost will increase accordingly. Combined with the surrounding environment and economic conditions, you can choose a suitable one. Taking XPS as an example, its economic thickness is about 0.063m. Most insulation materials, especially inorganic materials, have high water absorption and very strict requirements for the waterproofing of the outer sheath, which will increase the cost of the outer sheath. Therefore, it is necessary to study new water repellents and select more suitable water repellents in the material production process.

How to choose low-cost and economical external wall insulation materials?

Its stability is well accepted by the market and plays its role, and it has a wide range of applications and is generally practical, especially in terms of fire-resistant insulation and energy saving. The insulation material has the characteristics of stable structure, high strength, good alkali resistance, corrosion resistance, crack resistance, etc., with the best enhancement effect, and simple and easy construction. It is a new type of building material for external wall insulation projects and an ideal building material.

The industry standards for exterior wall insulation materials are not yet sound, and some manufacturers have loopholes in management. The exterior insulation materials they produce do not meet the requirements of building fire protection design, and the fire resistance level and fire resistance limit do not meet the national standards.

Exterior wall insulation materials are separated by floor slabs and are only constructed within a layer height range, without the need for scaffolding; in areas with hot summers and cold winters and hot summers and warm winters, internal insulation can meet the requirements. For energy-saving renovation of existing buildings, it is difficult to uniformly renovate the entire building or the entire community.