Many owners in the purchase of aluminum clad wood doors and Windows have heard business personnel often say that aluminum clad wood doors and Windows 6 main performance: thermal insulation, water tightness, air tightness, wind mining, sound insulation and noise reduction, wind pressure and other performance characteristics.
1. Heat insulation
The core of insulation is the K value of doors and Windows: what is the K value?
The K value is also called the heat transfer coefficient, formerly known as the total heat transfer coefficient. The current standard specification is uniformly named heat transfer coefficient. The heat transfer coefficient K value refers to the heat transferred through 1 square meter area within 1 hour under the condition of stable heat transfer, the temperature difference between the two sides of the envelope is 1 degree (K, C), and the unit is watt/square meter • degree (W/㎡•K). The smaller the K value, the stronger the heat insulation.
2. Water tightness
Watertightness is more important in areas with a lot of rain, and watertightness refers to the ability of closed external (door) Windows to prevent rain leakage under the action of wind and rain at the same time. This index is one of the three basic physical properties of doors and Windows.
3. Air tightness
Airtight performance refers to the ability of the external (door) window to prevent air penetration in the closed state, and the main related function is dust prevention and haze prevention.
4. Style
Daylighting refers to the brightness of light and sunshine. Lighting factor: refers to the ratio of the area of the window opening to the floor area of the house. In general building doors and Windows, the section area accounts for about 25%, and the glass area accounts for about 75%, for which the vast majority of aluminum-clad wood doors and Windows are without any problem.
5. Soundproofing
Sound insulation is directly related to noise pollution, in the current living environment, many buildings are not far from the road or the community open space is easy to be affected by various noise pollution, sound insulation refers to the ability to reduce noise through the isolation of doors and Windows, the current market product X doors and Windows are known to reduce about 35DB.
6. Hangzhou wind pressure
Wind pressure resistance refers to the ability of closed external (door) Windows to avoid damage and dysfunction under wind pressure. This index is a more important one of the three basic physical properties of doors and Windows. The wind pressure performance design of doors and Windows shall be implemented according to the relevant requirements of GB 50009 "Building Structure Load Code".
