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Internal sealing

Why we build an airproofing layer in thermal isolated buildings: The reason for this lies in the physical performance of air, humidity and water vapour. The winter differences between interior and exterior temperatures and the existing wind conditions cause a pressure drop in heated rooms... show..

Why we build an airproofing layer in thermal isolated buildings: The reason for this lies in the physical performance of air, humidity and water vapour. The winter differences between interior and exterior temperatures and the existing wind conditions cause a pressure drop in heated rooms between inside and outside – the water vapour in the ambient air press outward, through walls, ceilings and roofs. At this point the air-tightness comes in: If moist warm room air is able to penetrate unhindered into the isolation, into constructions (convection), there would be a risk of too rapid moisture of this materials, of the cooling of the humid air and therefore the development of condensation in the constructions. And accordingly heat losses. To prevent this from happening, to ensure that the water vapour can penetrate controlled the insulation and constructions in harmless quantity, in insulated buildings you build an airproofing layer. This consists of permeable vapour retarders (with the current state of technology only in extreme impermeable cases vapour barriers were used) which may have different characteristics depend on the materials used in a certain cross-section (for example sd-value, humidity-variable). The water vapour is able to diffuse through the vapour retarder and the insulation, but the air flow from inside towards outside will be prevented. Conversely an air tight layer also prevents the intrusion of cold outdoor air into the building via joints and cracks. The vapour check has to be glued seamless and airtight – among each other and with all connections (beams, adjacent masonry, floors, jam walls, ceilings etc.). A little gap, a little slot in the air sealing membrane are able to deteriorate significantly the insulation value of an entire construction, because they attract the more humidity, they create quasi a pulling effect. We distribute air sealing membranes and the associated adhesives and product details of the manufacturer pro clima, isofloc and Würth. ..hide

More sub catagories:

Intello
Intello

Moisture-variable vapour barrier and air-tight membranes. The pro clima high-performance system for maximum security even in constructions which are demanding in terms of building physics. e.g. INTELLO, INTELLO PLUS

DB
DB

Vapour barrier and air-tight membranes made from moisture variable building board. The optimum combination of safety and ecology. e.g. DB, DB PLUS

Roof insulation
Roof insulation

Vapour barrier and air-tight membranes for maximum security in roof insulation right from the word go. e.g. DA, DA connect

Renovation vapour barriers
Renovation vapour barriers

Moisture-variable renovation vapour barriers for quick and easy sub-roof and top-roof renovation from the outside. e.g. DASATOP

Renovation wallpaper
Renovation wallpaper

Vapour barrier wallpaper to increase the diffusion resistance of internal claddings when existing cavities are blown out with thermal insulation material. e.g. SANTA UT, SANTA DT

Trickle protection membranes
Trickle protection membranes

Dust and trickle protection for rooms with dropped ceilings and filling and for rooms in the ground.

Connection strips
Connection strips

Pre-fabricated vapour barrier and air sealing strips for the fast processing of air-tight connections.

isofloc air-tight seals
isofloc air-tight seals

With isofloc airtightness products, you will receive a complete system for your isofloc cavity wall insulation.

Wütop vapour brake
Wütop vapour brake

Cheap air sealing system with Wuetop vapour brake, Wuetop film adhesive and Eurasol adhesive tape


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