Features
Why Choose Del Building?
Perfect production system
DER Building has a unique, personalized, systematic and refined "18 workers" system in the industry.
Rich production experience
Shanghai DER Building aluminum doors and windows inherit the graceful lines of German architecture and Gothic architectural style, and have established a unique style image belonging to Building in the industry.
Continuous pursuit of innovation
Shanghai DER Building will continue to forge ahead and relentlessly pursue the concept of artistic door and window to every customer. Let the aluminum alloy door and window of the company become the guardian of your high-grade life, is the eternal pursuit of the company!
wooden doors
Shanghai DER Building aluminum doors and windows inherit the graceful lines of German architecture and Gothic architectural style, and have established a unique style image belonging to Building in the industry, becoming a new type of sun room, broken bridge aluminum alloy window and door manufacturing, etc. A series of large-scale door and window benchmarking enterprises related to design, manufacture and installation.
Shanghai DER Building will continue to forge ahead and relentlessly pursue the concept of artistic door and window to every customer. Let the aluminum alloy door and window of the company become the guardian of your high-grade life, is the eternal pursuit of the company!
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Frequently Asked Question
Do you have any question?
Wooden doors are doors made of wood. According to materials, processes and uses, it can be divided into many types. It is widely used in civil and commercial buildings and residential buildings. There are European style retro style, simple modern style, American style, Mediterranean style, Chinese style, French romantic style and Italian style.
After processing, the finished wood door has the characteristics of non-deformation, corrosion resistance, no splicing seams and good heat insulation. Because the wood door is processed from all solid wood, it has high density, thick and heavy door panels. Because of this, the wood door has good sound absorption and can effectively play the role of sound insulation.
The wooden door must be placed horizontally on the ground before installation, and the stacking height should not exceed 1 meter. Do not lean against it to avoid deformation. Try to avoid long-term exposure to outdoor sunlight to prevent the wooden door from being damaged by heat.Prevent the wooden door from being damaged by abnormal impact or contact with corrosive substances.Before installation, the doorway must undergo necessary moisture-proof and anti-corrosion treatment.
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wooden-doors | Advantages and disadvantages of wooden doors
advantage: The high-end wooden doors feel smooth and soft in color. Environmentally friendly, sturdy and durable. Thermal insulation, impact resistance, and sound insulation are basically the same as solid wood doors. shortcoming: Afraid of bumps and water. Since it is all made of solid wood, its flame retardancy is relatively poor. If the wood is not dehydrated, the door will be deformed, cracked at the tenon joint, and the door core board will shrink and become white after being made into a wooden door.
wooden-doors | The advantages and disadvantages of various types of wooden doors
1. Solid wood composite door: Using wood as the frame, the door panel can choose a variety of materials and a variety of manufacturing methods. The solid wood composite doors have various shapes and rich styles, either exquisite European-style carvings, or Chinese classical style mosaics, and they also have a modern flavor. advantage: The high-grade solid wood composite door feels smooth and soft in color; Environmental protection, sturdy and durable; It has good heat preservation, impact resistance and flame retardancy, and the sound insulation effect is basically the same as that of solid wood doors. Disadvantages: fear of bumps and water. 2. Solid wood doors: The door core is made of natural logs and processed through processes such as drying, planing, and high-speed milling. The choice of solid wood doors is mostly precious woods, such as cherry wood, walnut wood, teak wood and so on. advantage: Corrosion resistance, no cracks, heat insulation; It has good sound absorption and can effectively play a sound insulation effect; Good environmental performance. shortcoming: The use of pure solid wood processing, if the wood dehydration treatment is not enough, after the wooden door is made, problems such as deformation of the door body, cracking of the tenon joint, and shrinkage and whiteness of the door core board are likely to occur; Since it is all made of solid wood, its flame retardancy is relatively poor. The price is higher. 3. Molded door: It is made by pressing MDF under high temperature conditions and can be made into various concave-convex patterns. Advantages: The price is economical, generally around 500 yuan. shortcoming: Due to the limited molds, there are not many styles, only fixed styles; Most of the molded doors are hollow, knocking on them and banging; It is not as good as solid wood doors with good sound insulation, and can not be exposed to water or bumps; Poor environmental performance. Four, paint-free door: Paint-free doors refer to wooden doors that do not need to be painted, either solid wood composite doors or molded doors. At present, most paint-free doors on the market refer to PVC veneer doors. Now there is a kind of wood grain paper veneer, that is, a layer of paper imitating solid wood veneer, which is pasted on the door panel. advantage: The surface of the product is free of paint to avoid re-emission of harmful gases; One-time forming, short construction period; Affordable, the price is around 800-1000 yuan. Disadvantages: easily affected by humidity, temperature and air factors, causing cracks and deformation of the surface, which is not easy to repair.
wooden-doors | The structure of various wooden doors
1. Compound door: The door cores of solid wood composite doors are mostly made of pine, fir or imported filling materials. MDF and solid wood veneer are pasted on the outside, which are made after high-temperature hot pressing, and are sealed with solid wood lines. Generally, high-grade solid wood composite doors have high-quality white pine cores and solid wood veneers on the surface. Because the white pine has low density, light weight, and easier to control the moisture content, the finished door has a lighter weight and is not easy to be deformed or cracked. In addition, the solid wood composite door also has the characteristics of heat preservation, impact resistance, flame retardancy, etc., and the sound insulation effect is basically the same as that of the solid wood door. In addition, the veneer and stickers are more common for modern wooden doors. The veneer wooden door is relatively expensive because of its natural texture, beautiful appearance and strong impact resistance; the sticker wooden door is also called "grained wooden door", because of its low price, it is a relatively popular product. The disadvantage is that it is easier to break and is afraid of water. . The solid wood composite door has the characteristics of smooth hand feeling and soft color. It is very environmentally friendly, sturdy and durable. 2. Wooden doors and solid wood doors: The solid wood door is made of natural logs from the forest as the door core, after drying, and then scientifically processed by cutting, planing, tenoning, drilling, high-speed milling and other processes. 3. All wooden doors: The whole wooden door uses natural log wood as the door core, and the balance layer uses plywood instead of MDF; the process has the natural characteristics and environmental protection of the log, the process solves the instability of the log, and the shape is more diverse and delicate.