Doors and windows are the face of the house, which shows the importance of door and window decoration. Homeowners who have bought a new house or are planning to renovate and renovate an old house are concerned about the fact that there are quite a lot of doors and windows in a house. Which doors and windows must be replaced, and which ones can be retained?

Part1 During the replacement preparation phase, plan ahead and leave no regrets.

Door and window manufacturing is an industry with a relatively low threshold, and family-owned workshops are everywhere in the streets. High-quality doors and windows are not cheap. Before replacing doors and windows, owners should consider various related issues, such as which doors and windows need to be replaced? What material should be replaced for doors and windows? How to choose various doors and windows, etc. Below the editor will answer them one by one for you.

1. Determine the doors and windows that need to be replaced

The key to replacing doors and windows is whether the renovation funds are sufficient. If you have enough money, it would be better to replace all or most of them so that the style is unified and more beautiful. And if you don't have enough money, you can replace some of them and use the others first. For example, if the quality of the home security door is good, just replace the door lock. Other interior doors and windows are subject to availability.

2. Understand the materials of doors and windows

The current door and window materials mainly include wooden doors and windows, plastic steel doors and windows, aluminum alloy doors and windows, and broken bridge aluminum alloy doors and windows. Doors and windows made of different materials have different advantages, disadvantages and prices. Owners need to choose the most suitable door and window material based on their own needs and economic situation.

No matter which door or window material you finally decide to choose, you must carefully study how to distinguish the advantages and disadvantages of this material. It is recommended that when purchasing doors and windows, you must go to a regular building materials market. Of course, small roadside door and window stores are not indispensable, but you must go to a door and window store with a high reputation, a long operating time, and a good reputation.

3. General process of door and window replacement

Consult the property management: Currently, many residential property management regulations stipulate that in order to maintain a uniform appearance, the material, shape and color of doors and windows cannot be changed without permission. Therefore, when replacing facade doors and windows, you need to first consult with the property owner to see if they agree to the installation. Replacement of doors and windows generally needs to be done at the beginning of decoration, and then the next step of decoration construction can be carried out.

Door and window manufacturers come to measure: After fully understanding and preparing in the early stage, choose the appropriate door and window manufacturer. Generally, door and window manufacturers will have technical personnel go to the site to conduct on-site measurements and inspections. After on-site measurements, technicians need to produce drawings and make quotations. Then if the owner approves the proposed plan, the door and window manufacturer will process the products according to the plan. The general product production period is 20-30 days. Once the product is made, removal of the old doors and windows and installation of new ones can begin.

Part2 Tips to save money during renovation during the removal of old doors and windows

As the saying goes, the old is out and the new is in, only by getting rid of the old can you make room for the new. Before installing new doors and windows, the old doors and windows first need to be removed. Old doors and windows should not be dismantled too early. Generally, it is best to install new doors and windows immediately after dismantling the old doors and windows. The dismantled old doors and windows can’t just be thrown away as garbage, they can also be depreciated, helping the owners save money!

一、How to remove old doors and windows

If the owner has experience, he can dismantle the old doors and windows himself, and then sell the old doors and windows to a scrap collector; or he can choose a specialist in the market who collects old doors and windows, who will not only be responsible for the dismantling, but will also pay recycling fees for some old doors and windows, but this is generally not the case. It will be very high; in addition, it is more reliable and safer to have the door and window manufacturers dismantle it. However, according to industry practice, the removed doors and windows will directly bear the top dismantling fee. Either way, the cost of removing doors and windows can be written off your expenses.

二、Things to note when removing old doors and windows

1. Pay attention to personnel safety

Removing doors and windows is a laborious task. If it is a high-rise building, special attention must be paid to the safety of construction workers. When removing doors and windows, special safety personnel must be responsible for safety and set up safety warning signs to ensure your own safety and the safety of others.

2. Avoid damage to the wall structure

When removing doors and windows, you need to avoid using a sledgehammer to smash them to prevent damage to the wall structure. If the original building walls are damaged, they will need to be repaired, which will greatly increase the construction cost.

三、General process for removing doors and windows

Before the door and window dismantling work begins, the person in charge of door and window installation needs to conduct a comprehensive safety and technical briefing to the installation workers. This enables the installation personnel to master various precautions that should be paid attention to during the removal of doors and windows.

1. Remove the door and window sash first.

The door and window sash should be removed first using tools such as screwdrivers and hand hammers. During the disassembly process, one person should dismantle the door and window, and one person should be responsible for the stability of the door and window. After the door is dismantled, it should be put down gently and it is strictly forbidden to push it down from high altitude.

2. Remove door and window frames

After the door and window sashes are removed, the door and window frames can be removed. Generally, you first need to use a blade to cut off the sealant on the inside of the door and window frames. If the doors and windows are connected to the wall using expansion bolts, you can directly remove the expansion bolts with a screwdriver; if the expansion bolts are rusty, you can use an impact drill to remove them. Break it into pieces; if it is connected by connecting pieces, just use an impact drill; if the window frame is difficult to remove, you need to use a hacksaw to cut the middle part of the frame against the wall and remove it.

3. Clean and repair door and window openings

When doors and windows are disassembled, some damage may be caused to the door and window openings. If not dealt with, it will not be conducive to the installation of new doors and windows. Therefore, after the doors and windows are disassembled, it is necessary to review whether the size of the opening is correct and whether it is made horizontally and vertically, and deal with the openings that do not meet the requirements.

Part3 During the installation of new doors and windows, focus on supervision and acceptance

After the old doors and windows are removed, new doors and windows can be installed. When installing new doors and windows, you need to be more careful and pay attention to supervision and acceptance to avoid various problems such as water leakage and air leakage in the later stages of use of the doors and windows.

一、Door and window materials must be accepted upon entry

Installation stage of new doors and windows

Door and window materials must be inspected and accepted when entering the site. The first is the appearance inspection to check whether there is any damage or breakage; the second is the dimensional acceptance, check the dimensions of the four sides of the frame, check the squareness and warpage of the fan, to achieve quality pre-control before installation; the third is to identify the authenticity, according to different materials Identification methods to determine the authenticity of materials to prevent cheating. In addition, fasteners, hardware, reinforced profiles, metal linings, etc. should also be checked to see whether the surface has been treated with anti-corrosion.

二、Be careful when placing doors and windows

After door and window materials arrive at the construction site, they need to be placed carefully to avoid bumps and wear. Generally, doors and windows should not be in direct contact with the ground. The bottoms of doors and windows should be lined with non-metallic anti-slip pads with a thickness of not less than 30mm. At the same time, door and window frames should be placed upright with an angle of not less than 70 degrees, and anti-tipping measures should be provided. In addition, doors and windows of different specifications should not be stacked. put.

三、General process of door and window installation

1. Fixed bracket

Method 1: Fix with fixation piece

Method 2: Fix with expansion bolts

2. Beat foam

After the doors and windows are adjusted, foam needs to be applied to fill the gaps between the door and window frames and the wall. After the styrofoam is cured (it usually takes 2-3 hours, and it takes longer in winter), cut off the excess styrofoam.

3. Install doors, windows and other accessories

After fixing the door and window frames, the next step is to install the door and window sashes and other accessories. Be careful when installing.

4. Apply sealant

After applying the foam glue, apply sealant evenly around the door and window frames to prevent rainwater from seeping into the room through the installation gaps between doors, windows and walls.

The general process of installing doors and windows is to first install the frame, then check whether it is properly installed, and then fill the gaps with foam. Then install doors, windows and other accessories, and finally apply sealant to prevent water seepage.

四、Door and window installation acceptance

When installing doors and windows, careful acceptance is required to find and repair problems in a timely manner. Generally, the acceptance of doors and windows mainly looks at the following aspects.

1. Check the vertical water content of door and window frames

It is best to measure the verticality of door and window frames with a level ruler, or you can also use a line hammer, etc. The verticality error of doors and windows within 2 meters high should be less than 2 mm; when the door and window height is greater than 2 meters, the error should be less than 3 mm; the level of door and window frames should be less than 2 mm. It is best to measure the degree with a spirit level, or you can pour water into the sliding chute of the door and window frames. If the water surface remains at a horizontal line, it means that the door and window frames are level; otherwise, it means that the door and window frames are not level. You can also use a long water pipe to measure it, and look at the two Whether the water level at the end is level.

2. Check the quality of glass installation

The glass should be smooth, without spots or water marks; the inner and outer surfaces of the double-layer glass should be clean, there should be no dust and moisture in the glass interlayer, and the spacers should not be lifted. The beading with sealing strips must be in close contact with the glass. There should be no obvious gap at the joint between the bead and the profile. The gap at the joint should be less than or equal to 1 mm.

3. Check the tightness of the frame and fans

The connection between the door and window frames and the leaf leaves should be tight, and there should be no obvious gaps at the joints of the sealing strips of the leaf leaves. When the doors and windows are closed, there should be no obvious gap between the sash and the frame, and the sealing strip on the sealing surface should be in a compressed state.