How to optimize the quality of doors and windows?

Research background

Style = \”Letter-Spacing: 1.5px;\”> At present, my country\’s real estate industry has increased concentration and competition has intensified. As a sensitive point, customers are particularly concerned about the beauty of doors and windows, heat insulation, and ventilation functions. In order to respond to the promotion of the quality improvement of the group, to create a benchmark, the standards of doors and windows are required to refine the standards of doors and windows and improve the quality of doors and windows. This article will study from the two levels of door and window design and construction.

Design level

According to customer orientation, combined with construction period, quality, cost, from profile, glass, hardware, sealing materials, other five five other five five Analysis of the dimensions.

1 profile

1.1 Aluminum alloy profiles: There are two main categories on the market: plain aluminum and broken bridge aluminum. Since plain aluminum has poor thermal insulation and energy saving, broken bridge aluminum is mainly used.

1.1.1 Classification of broken bridge aluminum

①Classification by broken bridge form:

②Classification by surface technology:

1.1.2 Classification and selection criteria of broken bridge aluminum

2 Glass Standards and Selection

3 Requirements for energy-saving design doors and windows

3.1 The selection, parameters and heat transfer coefficient of doors and windows must meet or be less than the limits stipulated in energy-saving standards, and the types of doors and windows selected for energy-saving calculations should be consistent with the actual use types;

3.2 Door and window glass should be made of ordinary transparent glass or insulated glass with light-colored low-emissivity coated glass. Door and window profiles should be made of plastic profiles, heat-insulating colored steel and heat-insulating aluminum alloy profiles. It is also required that the exterior doors and windows have good air conditioning. Tightness, water tightness, sound insulation and wind pressure resistance

The heat transfer coefficient K value of a single glass window is 6.0 ~ 6.7

The heat transfer coefficient K value of aluminum alloy insulating glass windows is 3.9 ~4.5

The heat transfer coefficient K value of aluminum alloy thermal insulation insulating glass windows is 2.8~ 3.5

The heat transfer coefficient K value of aluminum alloy thermal insulation LOW-E insulating glass windows is 1.9~ 2.9

Note: The K value is a physical quantity that measures the thermal insulation performance of a material, that is, the heat transfer coefficient. The K value of architectural glass is defined as: under standard conditions, the air from one side of the glass component per unit area to the other in unit time The heat transmitted by the air on one side is calculated as the heat passing through one square meter of glass per hour at a temperature difference of one degree Celsius. The unit system is w/m2.k, where w is the thermal power, m2 is the glass area, and k is the temperature in degrees Celsius.

4 Hardware

4.1 Hardware type

4.2 Hardware options:

5 sealing materials

5.1 seal material type

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5.2 Selection of sealing materials

6 other

satisfy usage to use Precautions for functions and facade effects:

1. Bedroom window must be considered to be convenient for air conditioning Installation of the host; open the side of the fan position to the side of the indoor door to ensure air circulation;

2. High-rise buildings doors and windows are in safety considerations and are not recommended to open;

3. kitchen Sanitary room: Push -pull should be used above 900mm, and upper suspension should be adopted (900 wide cave entrance deducting the paladium door and window net size of about 850mm (single fan 425mm), the width is narrow, inconvenient to use);

4. The open fan can not exceed 600mm (when the width is large, the switch is not flexible, it is not convenient to use, hardware, hardware, hardware, hardware, hardware, hardware You need to make professional customization).

Construction level

1 Door and window installation methods

1.1 Installation of clean openings: installation after both internal and external window openings are intact;

Advantages and disadvantages: interspersed Less construction, saving time and effort; no secondary pollution, low protection requirements for finished products; short installation period of doors and windows;

1.2 Burr installation: Install directly after the main structure is intact;

Advantages and Disadvantages: Intermittent construction is required; there is a risk of secondary pollution, and the protection requirements for finished products are high; the door and window installation period is long; the anti-leakage effect is good;

2 Customer sensitive points

2.1 Profiles, Check whether there are scratches on the hardware and glass;

2.2 Whether it is clean and free of secondary pollution;

2.3 Whether the hardware opening is flexible;

2.4 Whether the quality of sealant is smooth;

2.5 Check for leakage after use.

3 Door and window installation standards

Small Knot

With the development of the real estate industry, doors and windows, as the \”eyes of architecture\”, play an increasingly important role in living experience, appearance of facades, energy conservation and environmental protection. Zhongliang Real Estate Group Recruitment will always adhere to the principle of \”sharing With the corporate mission of \”creating value and letting the mood bloom in all seasons\”, we link design, engineering, cost and other lines to dedicate customer-satisfied and high-quality products to society.