Plastic and aluminum doors are established mainly in production, office and premises. Depending on the frequency of use and characteristics of office or the apartment the corresponding material is chosen. Aluminum doors are more often used in places where the big passability of people as products from this material maintain heavy loads is observed. Plastic doors are established at offices more often.
Plastic doors
In apartments the plastic doors often are established as entrance on balcony or loggia. Also they are often used in owner-occupied dwellings and are established on entrance to administration or trade premises.
It is possible to carry to the main advantages of the doors made of PVC:
- thermal insulation level; - structural strength; - quality of noise isolation. Depending on range of application, distinguish outer, balcony and interroom doors. Depending on assignment the building and the closing product mechanisms change. Interroom doors have high shutter, and the handle is installed on both sides. Frames can differ on way of opening: sliding, rotating, folding. Depending on the place of use any given design will be chosen.
Production of plastic doors has technology similarities to production of plastic windows. At the first stage the cutting of the reinforcing profile and switches for covering from PVC according to the necessary sizes and requirements of the customer begins. Then milling of openings is made for drainage to avoid moisture delay in doorframe. Then metal section of door is made and fixed. Then preparation of openings under locks, handles and levels directly on already collected doorframe is made. Interroom plastic doors can have the handle bracket or the handle with the press set. Further milling of edge part of impost which is made on the special impostny machine is made. Its processing and installation in almost finished product is made. Then welding of profile, frame and PVC is made. Cleaning on the special cleanup equipment is carried out, the door sill gathers. Then fastening by loop on door shutter is made. Further the operability of the installed mechanisms is checked and the key level fastens. At the last fabrication stage the glazing of product is made then he is brought to the customer.
Products from PVC can be put independently – their mounting a little in what differs from installation of other types of door assemblies.
Aluminum doors
Aluminum doors are established where the big passability is observed: in shops, shopping centers, offices. This type of doors differs from PVC in the fact that it can maintain heavy loads since aluminum is more durable and tamperproof. Doors from this material are calculated on large number of otkryvaniye. Other feature visual ease of door assembly – door profile width much more thinly plastic is considered. Aluminum doors can be separated into "cold" and "warm". The first version is made without special thermobridge and similar products are used on entrance to various trade rooms and shops. Also the kind of "cold" doors is used in aluminum partitions. "Warm" aluminum doors have special insert – the thermobridge which interferes with hit of cold air to the room. Such doors are established in industrial premises where there are high requirements for heat-shielding. Aluminum frames are made of uniform cloth which is hammered with filler (cellular or glass). Cellular filling does material easier and reduces the cost of the final product. Sometimes by production the triplex glass consisting of two layers and layer from plastic between them is used. The fire-protective aluminum doors representing integral design from the internal and external profiles connected among themselves sheathed by fire-resistant levels are widely applied.
Comparison and prices
In spite of the fact that aluminum designs are stronger, are capable to protect from cold, are unpretentious in service and are more durable, this basis of design is less popular because of the high cost. The difference in the price of aluminum and plastic doors is considerable. Products from plastic – cheaper option which well will be suitable for installation of interroom and balcony frames.
Where more rugged constructions are required, it is necessary to establish aluminum doors.
Among apparent defects of plastic designs it is possible to note their electrostatic character – plastic doors easily attract dust. Also at installation of plastic materials there is problem of excessive humidity indoors since the rabbet of shutter of plastic profile is close to hermetic. Among shortcomings of aluminum designs note toxicity of the used dyes, and therefore these doors are often inapplicable in premises.