Airtightness systems

The airtightness of a building is extremely important and is one of the five basic principles of the Passive house concept. If air flows through joints and cracks in a leaky building envelope, structural damage occurs and energy losses are unnecessarily high. In addition, sound insulation suffers and drafts reduce living comfort. The component database contains numerous certified airtightness systems; all products are accompanied by instructions for correct implementation. You can find out more about airtightness in buildings on the Passipedia knowledge platform.
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Search	Category	Efficiency class	System components	Sd EN 1931 [m]	Sd EN ISO 12572 [m]	Climate zones	Location / availability	Date certified
Component Manufacturers
SMARTPLY AIRTIGHT SmartPly Europe DAC	Surface air sealing	phA	Wood comoposite boards SMARTPLY AIRTIGHT, Air tightness tapes ISOCELL AIRSTOP FLEX or eqiv.	-	5,2-9,4 m	Independent	Ireland (IE)	May 2016
SMARTPLY SURE STEP SmartPly Europe DAC	Surface air sealing	phA	Airtight panel “Smartply Sure Step “ Self-adhesive Tape „Speedy Band“ and „Flexi Band“ or Equivalent; Primer	-	-	Independent	Ireland (IE)	Sep 2022
Soudatight LQ Soudal N.V.	Surface air sealing	phA	Brush-applied membrane „Soudatight LQ“ self adhesive tape "SWS Inside Extra" 70mm	-	37,5 m	Independent	Belgium (BE)	Aug 2020
Soudatight SP Soudal N.V.	Surface air sealing	phA	Spray-applied membrane „Soudatight SP“ self adhesive tape "SWS Inside Extra" 70mm	-	43,1 m	Independent	Belgium (BE)	Aug 2020
TYTAN WINS FLEX Selena FM S.A.	Window connection	phA+	TYTAN WINS FLEX Gun Pu-Foam, TYTAN WINS FLEX external liquid foil, TYTAN WINS FLEX internal liquid foil (front-of-wall window installation system MARBET CBM)	-	-	Independent	Poland (PL)	Mar 2024
Wraptite The A. Proctor Group Ltd	Surface air sealing	phA	Airtight membrane „Wraptite“ (self-adhesive) Self-adhesive Tape „Wraptite tape“	-	0,029 m	Independent	United Kingdom (GB)	Jan 2020

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