Absolutely amazing! The effect of the entrance door is comparable to that of a multi-million dollar mansion

In the house,The entrance dooris the first barrier to enter the room from the outside. It not only protects the safety of our residence and the privacy of our family, but also plays a certain decorative role. In order to ensure the safety of living,the entrance door must be strong, durable, good in anti-theft, and at the same time It must have fire protection function.

During the renovation of the house, due to Due to the installation process and finished product protection, problems such as the inability to open the entrance door, abnormal noises, scratches, and deformation often occur.

The entrance door is also the facade of the house. Whether it is a functional problem or a visual problem, it will affect the overall quality of the house. Once the problem is serious, maintenance will not only It is difficult, and it is easy for the owner to ask for replacement of the entrance door during the delivery, and even make claims and complaints.

The most commonly used steel-wood entrance door in life is to share with you today Let’s talk about how to control the installation quality of steel-wood entrance doors during the construction process. This article will be divided intoFour chapters for sharing:

1. Entry door installation site handover standards

2. Entry door installation process procedures

3. Standard process points for entrance door installation

4. Finished entrance door protection

1. The size of the door opening must meet the design requirements, and the size of the opening must be within the allowable error range ∶

▶Door opening width (-0mm, +20mm)

▶Door opening height (-0mm, +15mm)

▶Door stack thickness (-0mm, +10mm)

The allowable deviation of the plastered surface of the door frame side wall is:

▶Verticality (4mm), flatness (4mm);

2. Before installing the interior door, the floor tiles must be laid, the interior decoration is basically completed, and the interior is initially cleaned in place;

3. If the rough house is handed over and only the entrance door is installed, the exterior wall of the entrance door must complete the decoration work;

4. Entry door installation technical explanation:

Disclosure item 1:The size of the door opening must meet the design requirements, with the one-meter line as the baseline. Allowable deviations: door opening height [-0mm, +15mm], door opening width [-0mm, +20mm] door stack thickness [-0mm, +10mm] 】.

Disclosure content:When a height difference is found, the lower position will be used to calculate. If the standard is not met, the project must be notified for rectification. Normal 1 The meter line means that the horizontal distance from the line to the ground is 1 meter. Measure from the top, middle and bottom points. Take the minimum value to ensure that the inner space reaches 1050mm. The door opening width deviation [-0mm to +20mm] checks whether the wall is flat. The wall warp surface error is within 3mm. The common deviation range of door stack thickness is [0mm, +10mm].

Responsible unit for rectification:General contractor structure + hardcover paving.

Disclosure item 2: The wall and floor tiles have been laid, and one floor tile is reserved at the door of the external door.

Content of disclosure:External door opening requires that the floor tiles in the public area cannot be laid into the threshold area, that is, the floor tiles at the threshold need to be separated from the finished surface of the outdoor wall tiles by 2mm-5mm. The thickness difference between the left and right wall stacks is not allowed to exceed 5mm.

Responsible unit for rectification :General package structure + hardcover paving.

Bottom line item 3:The indoor and outdoor door stacks should be no less than 60mm away from the wall.

Disclosure content:Inside door openings require indoor floor tiles not to be laid into the threshold area, that is, the floor tiles at the threshold need to be separated from the finished surface of the indoor wall by 2mm-5mm. The thickness difference between the left and right wall stacks is not allowed to exceed 5mm.

Responsible unit for rectification:General contractor structure + hardcover paving.

Disclosure item 4:There is a water pipe passing through the ground at the entrance door, which cannot affect the door frame pre-embedding.

Disclosure content:If there are pre-buried water pipelines under the threshold, they need to be completed with floor tiles The distance between surfaces should be at least 25mm.

Responsible unit for rectification:General contractor of water and electricity.

Bottom line item 5:The allowable deviation of the flatness of the door frame side wall putty finish surface is 1- 2mm.

Disclosure content: Including the flatness of the putty-finished surface of the internal and external walls and the tile paving surface. Use a three-meter ruler to measure, and the flatness error is within 3mm.

Responsible unit for rectification:General contractor structure + hardcover paving.

1. Material preparation

1) Packaging and labeling and product acceptance: The packaging is required to be in good condition with clear product identification; focus on whether the material color or model, size, hardware, quantity, etc. are incorrect;

2) Materials are prepared on site and brought into the room 24 hours in advance.

2. Entry door installation flow chart

3. Key points for entrance door installation

1. Entry door frame splicing

2. Entrance doorThreshold splicing

Notes:

1) The splicing teeth must be tightened tightly and there should be no missing holes.

2) There should be no looseness after assembly.

3) After the assembly is completed, check the diagonal squareness (guaranteed that the four corners are 90 degrees) .

3. Mortar mixing requirements

Cement mortar ratio and grouting requirements:

1) Cement mortar ratio cement: sand: water = 1:2.5: 0.6

On-site control of cement mortar:

1) The cement grade is 32.5 or above; the sand is medium or fine sand.

2) Cement mortar is mixed mechanically, and mortar plates or pads are used for stacking.

4. Bottom sill grouting, vertical door frame

Entry door frame grouting and frame requirements:

1) Fill the bottom sill with mortar in advance, then assemble the frame and erect the main frame. The lower sill of the door also needs to be filled with mortar.

2) Push in the steel door frame, and use a small leveler to adjust the squareness and verticality (you can adjust it with the triangular wood at the back gap), and remove excess mortar.

5. Door frame grouting

Entry door frame cement mortar filling requirements:

1) Fill the bottom sill with mortar in advance, and then erect the main frame after assembling the frame. The lower sill of the door also needs to be filled with mortar.

2) The side frame is first grouted from the blast hole position, and then grouted with a grouting tube from the side to reach the highest blast hole Location. The gap between the frame and the door stack should be plugged with paper or wooden boards to prevent mortar from overflowing, and the filling holes should be covered; the side frames and top frames of fireproof doors need to be filled with full grout.

1. Protection method

1) The lower sill of the entrance door frame is protected by a multi-layer board box ;

2) The manufacturer should wrap the entrance door frame with film for protection when it enters the site. When it comes to hardcovering in batches, it is recommended to use 9mm thick 1.5m multi-layer board boxes on both sides of the entrance door frame for protection (or use thin carpets), the height is not less than 1.5m;

3) There should be films on both sides of the door leaf when entering the site , and then wrap it with finished corrugated cardboard or foam board for protection. The protective layer must be retained until the on-site finishing work is completed before it can be removed.

2. Cleaning essentials

1) Avoid damaging the protective film during door frame installation, and ensure that the protective film is intact and not exposed. When filling powder and caulking around the door frame, do not use iron foot plates to clean the mortar stuck to the door frame. You should remove it by hand when the mortar is still wet;

2) It is strictly prohibited to use paint thinner, paint remover rosin, xylene and other solutions to wipe the paint surface. Do not use metal tools to scrape the surface of the door frame to prevent scratches on the surface. Just wipe the dust with a dry cloth.

Conclusion

at During the installation process of the entrance door, we must not only pay attention to the installation process, but also pay attention to the protection of the finished product. If the finished product is not properly protected, the efforts spent during the installation will be in vain, and the originally beautiful entrance door will become devastated.

Shanghai Runjuhas always been committed to providing professional consulting and services to the top 100 real estate companies at home and abroad, using the principles of objectivity, fairness and impartiality to help customers improve project quality and continue to create value . So far, it has established cooperative relationships with many benchmark real estate companies such as China Jinmao, Shanghai Yanlord, and Sunan Investment. In the future, Shanghai Runju will continue to focus on project quality management and technological innovation to help the healthy development of the construction industry.

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