Heat and sound insulation of steel doors depends on the internal filler door itself, as well as sealing the circuit. Therefore, acquiring a steel door, you should pay attention to the material of manufacture of the filler and quality of the sealing contour. The most popular fillers are Basalt and mineral wool, polystyrene, corrugated cardboard, combined with special sound-absorbing and flame-resistant foam, etc. These materials do not support combustion, clean, conduct heat poorly. However, the cotton filler has two drawbacks due to its own weight.
Vata is somewhat heavier than foam, and therefore increases the total weight of the door. and A second drawback – it's slipping a cotton filler with time down by its own weight. As a result, the top door heat and sound noticeably worse. Foam plastic – a material more rigid and lightweight, these problems do not delivers. When you install a steel door, it is important to use a quality sealer circuit. The denser the door will fit the door frame, the better heat and sound insulation. Therefore, the sealing units must be a minimum of two (one on the perimeter of the door leaf, the second on the perimeter of the door frame), and ideally – four.
For example, just four of the contour seals have a door with improved sound and heat insulation from "Outpost". The canvas of the Doors are also filled with modern insulating materials. In particular, we are talking about such models of doors "Outpost" as 233VS, 63S, 17VK, etc. Can be used as a steel door trim and decorative panel, result of sound insulation in times increase. To prevent drafts should be carefully seal the gap between the doorframe and the wall with concrete. In general, to your apartment was always warm and quiet, today it is enough establish a quality metal door with a good sound and heat insulation. If necessary, reinforce the effect may be due to the additional installation of sealant. Although, if you really get a good door for example, from "Outpost", then tinker with seal you hardly have to!