Features of window installation: why foam is needed

Installation of window construction is no less important than its manufacture. In this process uses certain technologies and materials. As for the latter, the experts advise giving preference to polyurethane foam. This substance is able to completely fill the gaps between the walls and the frames. Foam has a lot of advantages over peers. This includes:

excellent insulating qualities;

absorption and distribution of mechanical pressure;

indifferent to uneven surfaces;

Affordable price and ease of operation.

Quality installation foam is suitable for almost all building materials. The latter does not include silicone and wax, polyethylene and polypropylene, Teflon. High-quality insulation makes the foam durable. Holes, cracks, gaps and other defects can be filled with it. After curing, the raw material becomes resistant to mechanical impact. It can be used for both interior and exterior work. Before you apply the foam, you must lay a waterproofing material, such as a rubber seal. The top of the polyurethane is plastered or treated with sealant. Exactly these substances influence the durability of window construction as a whole. Remove the excess foam with a special construction knife.

If you decide to use the foam, it is worth remembering that after the application it can increase by 7-8 percent. The big thickness of joint can be fatal for window frame. It will bend and you will hardly be able to fix it back. Fittings can be damaged as a result. Stiff fasteners will help to avoid such phenomena. In other words, sealing and waterproofing the window is one of the key points of installation.

It is worth bearing in mind that it is necessary to protect both internal and external cracks. The size of the latter should not exceed 3 cm. Especially if the window has large dimensions. It is not difficult to achieve the necessary results. Leading manufacturers produce additional profiles that allow you to expand the box if necessary. In this case the glazing area will remain the same. It is necessary to pay additionally for additional profiles, but their cost is not high, so there will not be considerable blow on a purse.