我和妽妽发生了性关_久久最新免费网址_九色在线全免费a级毛片_亚洲中文字幕无码重口变态_三个人一起弄进去就软了_精品少妇无码少妇av_亚洲另类视频图片小说_少妇被五个黑人玩的在线视频_毛片免费观看的视频在线_亚洲iv成无码人

Exterior wall insulation board: high-quality material, energy-saving and environmentally friendly

As an important component of the building's external wall insulation system, the choice of material for the external wall insulation board directly affects the insulation effect, service life, and safety of the building. The commonly used materials for exterior wall insulation boards in the current market are as follows:

Polystyrene (EPS) board: EPS board has good insulation performance, low water absorption rate, and lightweight characteristics, and is currently one of the most popular exterior wall insulation materials on the market. It is suitable for insulation engineering of various buildings, with simple construction and moderate price.

XPS board: XPS board has high compressive strength, low thermal conductivity, and excellent weather resistance, making it suitable for thermal insulation of high-rise buildings. Its insulation effect is better than EPS board, but the price is relatively high.

Rock wool board: Rock wool board has good sound insulation, fire resistance, and thermal insulation properties, and is suitable for buildings with high requirements for fire resistance. However, the high water absorption rate of rock wool board may lead to a decrease in insulation performance.

Polyurethane (PU) board: Polyurethane board has excellent insulation performance, low thermal conductivity, and good weather resistance, suitable for building insulation under various climatic conditions. But its high price limits its popularity in the market.

In summary, when selecting the material for exterior wall insulation panels, it is necessary to comprehensively consider factors such as the building's insulation needs, budget, and service life. EPS board and XPS board have high cost-effectiveness in the market due to their excellent insulation performance and moderate price.