Sealing / Warm seam

Sealing wooden houses and filling cracks and crevices is a set of measures aimed at minimizing negative impacts resulting from air, moisture, precipitation, etc. This set of measures has become widespread in the field of wooden housing construction due to the development of polymers in recent decades.

Sealing seams and cracks in a wooden house with sealants replaced primarily the time-tested method of caulking these crevices with felt, tow, etc. This is due to the fact that wood as a living material has several characteristic features: to increase/decrease in size in thickness and length under the influence of moisture, and also that it does not have, like any natural organism, absolutely even geometry, primarily in length.

During operation and complete drying (shrinkage), which lasts approximately two to three years, its warping (mainly bending) occurs, stresses arise, which leads to the appearance of cracks in the crowns and crevices between them. This problem can significantly reduce the energy efficiency of a house due to the loss of warm air through the crevices to the outside and cold air entering inside. It primarily concerns houses made of rounded and profiled timber (houses made of glued timber, as a rule, do not have such diseases or have them to a much lesser extent). Also, the presence of crevices and cracks can lead to wood damage and the onset of the rotting process.

Main goals of sealing:

It is performed in different ways or their combination: sealing by applying acrylic and polyurethane sealants with special guns (manual, pneumatic, electric), laying various sealing polymer cords, etc.