Broken bridge aluminum doors and windows

How to choose a suitable thermally insulated aluminum window? We will provide you with reference from the following aspects

 

What are thermally-insulated aluminum doors and windows?

Thermally-insulated aluminum refers to the heat-insulating bridge. Because aluminum alloy is a metal and has a relatively fast thermal conductivity, when the indoor and outdoor temperatures differ greatly, aluminum alloy becomes a "bridge" for heat transfer. Thermally-insulated aluminum is to cut the aluminum alloy in the middle and connect it to the aluminum alloy on both sides with hard plastic. Plastic has a slow thermal conductivity, so heat is not easy to transfer. Thermally-insulated aluminum doors and windows, a more professional name is aluminum-plastic composite doors and windows.

 

Advantages of thermally-insulated aluminum doors and windows

 

1. Good sound insulation

Double-layer hollow glass and thermally-insulated structure greatly reduce the sound, which spreads in the air and thus plays a role in sound insulation.

 

2. Strong and durable, strong wind resistant

Standard materials are strong and not easy to deform, and are also very stable when encountering strong winds.

 

3. Reduce indoor equipment loss

The thermal conductivity of broken bridge aluminum doors and windows is low. In summer, it can isolate the indoor heat from the outside. In winter, it can keep the indoor temperature and prevent heat loss. Therefore, it can greatly reduce the loss of equipment such as heating equipment and air conditioning, and indirectly protect the environment.

 

4. Prevent condensation

The temperature of the inner surface of the profile with insulation is close to the outdoor temperature, which reduces the possibility of indoor moisture condensing on the profile surface due to saturation.

 

5. Rich colors

After anodizing, powder coating, and fluorocarbon spraying surface treatment, the anti-corrosion and durability are greatly enhanced, and aluminum profiles of different colors can be produced.

 

6. Longer life

The service life of broken bridge aluminum doors and windows is longer than that of doors and windows of other materials. The surface treatment of broken bridge aluminum alloy door and window profiles has good corrosion resistance, and there is no need to worry about the profile becoming brittle and deformed due to wind and sun all year round. The profile is stable, has strong oxidation resistance, is waterproof and moisture-proof, and is easy to maintain.

 

 

Disadvantages of Broken Bridge Aluminum Doors and Windows

 

1. Poor ventilation

The opening angle of Broken Bridge Aluminum Alloy Doors and Windows cannot be adjusted at will, and the ventilation is relatively poor.

 

2. Poor air tightness

Since the frame and fan components of plastic steel doors and windows are welded, its air tightness is slightly better than that of Broken Bridge Aluminum Alloy Doors and Windows connected by screws

 

How to choose Broken Bridge Aluminum Doors and Windows?

1. Profile

There are 70, 80, 90, 100, 110, 115, 120, 130 and other values ​​representing the width of the window frame. The larger the value, the larger the window width and the larger the wall, and the stronger the overall stability of the window. Generally, 75 can be selected, and 80 or more for high-rise buildings.

 

2. Wall thickness

There are 1.6, 1.8, 2.0, 3.0mm, etc., which refers to the thickness of the aluminum material. Try to choose doors and windows with a wall thickness of 1.8mm in the new national standard, and do not choose those with a wall thickness of less than 1.4mm. The new national standard 1.8mm wall thickness is safer.

 

3. Aluminum material

You should choose original aluminum. Ask the merchant to show the aluminum test report. The model number 6063-T5 on the report is original aluminum. Original aluminum has a glossy appearance, and recycled aluminum has almost no.

 

4. Glass

Tempered glass should choose the 3C certification mark. The thickness of conventional glass is 5mm. If the area is larger, the thickness of the glass should be increased, and the corresponding profile configuration should also be upgraded, so that the doors and windows can be more stable and safe.

 

5. Double-layer insulating glass

There are 5mm+20A+5mm, 5mm+27A+5mm

etc. Among them, 5mm represents the thickness of a single piece of glass, and the middle values ​​20 and 27 represent the thickness of the hollow layer. The letters represent the hollow layer gas A (air) and Ar (hydrogen).

 

6. Laminated glass

PVB explosion-proof film is used for the bonding of two or more layers of tempered glass: the broken particles of tempered glass will stick to the film and will not scatter and hurt people. It can also hinder and buffer the vibration of the glass, thereby achieving the effect of noise reduction. Laminated glass can be selected if you want good sound insulation performance.

 

7. Coated glass

Low-e glass is a kind of coated glass, which is divided into single silver, double silver and triple silver, with a light transmittance of 90%, heat reflection: 10-30% light transmittance but not heat transmittance, good heat insulation effect, often used in areas with requirements for heat insulation, and has a high transmittance for visible light.

 

8. Heat insulation strip

Please choose PA66-GF25 nylon heat insulation strip: PA66 is a nylon material model, GF25 is 25% glass fiber, and the heat insulation strip is a section of material with low thermal conductivity that divides the aluminum profile into two. This section of material is called a heat insulation strip.

 

9. Sealing strips

Select EPDM sealing strips for sealing and outer frames of window sashes, which have stable performance and long service life!

 

10. Hardware

Hardware includes hinges, handles, lock points, lock seats, lock boxes, etc.! Hardware accessories are the heart of doors and windows. Airtightness, watertightness, thermal insulation, sound insulation, etc. are all closely related to hardware accessories.

 

11. Opening method

Push-pull opening, folding opening, casement opening (outside casement opening, inside casement opening, outside opening and hanging down, inside opening and tilting, floor-standing inside opening and tilting, etc.

Inside opening and tilting: The window sash can be opened and tilted toward the room. Open a certain angle for ventilation. Common in the north, with better thermal insulation performance.

Outside opening and hanging down: The window sash can be opened and tilted toward the outside, also known as the outside top. Common in the south, with better waterproof performance.

 

12. Invisible hinges

Don't choose visible hinges, choose invisible hinges, which have beautiful appearance and better sealing.

 

13. Floor drain drainage

Don't choose visible drainage holes, choose floor drain drainage, which can prevent mosquitoes from entering.

 

14. Insulation cotton

Choose insulation cotton with cavity, not hollow cavity insulation cotton to improve the insulation performance of doors and windows to a certain extent.

 

 

Advantages and disadvantages of different doors and windows

■Aluminum alloy doors and windows

Advantages: low unit price, high strength, good appearance;

Disadvantages: fast heat conduction, poor insulation and heat resistance.

 

■Broken bridge aluminum doors and windows

Advantages: high strength, good insulation and heat insulation performance;

Disadvantages: products are uneven and need to be carefully identified

 

■System doors and windows

Advantages: very good sound insulation and sealing

Disadvantages: high unit price, system doors and windows are suitable for areas with cold winter, temperature below 0 degrees, and certain requirements for cold and wind resistance.