double hung windows service charlotte NC

Given the characteristics of glass as a material with a certain rigidity, spatial structures like double-glazed windows are distinguished by certain size restrictions. They can be within a minimum of 300mm on one side and in an aspect ratio of 5:1. But the maximum glazing area should not exceed 3 m2 in a single-chamber package with 4 mm thick glass and 4.2 m2 with 5 mm glass thickness.

Among the advantages of contacting us: a guarantee for windows - 10 years; short terms of production of the order; production of raw materials in the EU; loyal rates; the possibility of obtaining an installment plan; professional turnkey installation.

Rubber In terms of performance, rubber seals are not inferior to silicone and ethylpropylene, but at a much more affordable price. True, soft rubber is not very durable and eventually cracks from frost and heat, losing tightness. But it is just as easy to replace as the TPE seals, so there will be no problems with it.

Fittings Window fittings are not only a handle, but also all the mechanisms located around the main sash, responsible for its movement, fixation incertain provisions.

Well-known manufacturers of high-quality plastic windows, as a rule, complete products with high-quality seals that are resistant to deformation, soft and elastic.

Why plastic windows are better Hermetic design prevents heat loss, which is especially important in houses with insufficient heating system capacity and apartments in which heating appliances are equipped with meters and temperature controllers.

We recommend choosing plastic (PVC) windows in which the air chambers between the panes are filled with argon or krypton. This design will significantly save the cost of heating in winter and air conditioning in summer.

Plastic can hardly be called an environmentally friendly material, but modern manufacturers have tried to make it as safe as possible for humans. In its manufacture today, components that are harmful to health are not used.

PVC used for the production of profiles has a number of features that manufacturers are constantly struggling with: 1. Sufficiently high linear expansion, reaching several millimeters per meter of length. In order to compensate for this phenomenon, it is necessary to leave special gaps, use reinforcement and correctly calculate the number of fasteners. The same feature of the PVC profile limits mamaximum dimensions of window structures. 2. Low coefficient of elasticity, but even at the factories it is leveled by the use of metal inserts and the correct calculation of the thickness of the inner walls, which are stiffeners. 3. Insufficient temperature stability and UV resistance. Manufacturers also learned to deal with this drawback by introducing special modifiers and stabilizers into PVC, which preserve the color and structure of the material. In high-quality windows, such additives serve no less than the entire structure. They are, in most cases, completely harmless to humans. But if the frame emits a pungent smell that does not disappear for a long time, do not buy this window. It used lead or cadmium, or even more dangerous chemicals, instead of harmless zinc and calcium.

Decorated and white windows differ in a number of mechanical indicators. The laminated frame, especially in dark colors, is more heated by the sun. This necessitates the mandatory reinforcement of the profile, regardless of the size of the structure.