Intelligent, effective solutions for joints (6/8) – Problem with skylights: adhesive bonds at corners

Continuation of Part 5: Care required at the corners of plastic windows:

A challenging corner joint arises when installing skylights. The membrane is guided up to the surrounding window profile all around the window and has to be stuck there in a reliable, sealed manner, even at the corners. Particular care must be taken at the corners. An experienced tradesperson can achieve an uninterrupted airtight seal here using prefolded adhesive tapes. Prefabricated corners, which may be adapted for the width of the surrounding window profile that is present if necessary, are a reliable alternative.

The corners of skylights always show up first in blower door tests. It is important to start by sealing the corner and then to seal the surrounding window profile all around the window. This challenge can be solved by installation tradespeople by folding adhesive tape to create a corner element.

This series of articles summarises typical, challenging joint situations and shows how technicians can find practical solutions for these challenges. It also provides an overview of the detail features for which prefabricated solutions are available that allow tradespeople to achieve airtightness in a quick, easy and reliable manner.

This Series was wirtten by Jens Lüder Herms and Holger Merkel

Jens Lüder Herms, Zimmerer & Diplom-Ingenieur (FH), Exportmanager und Anwendungstechniker

Jens Lüder Herms, carpenter and graduate engineer, Export Manager and Application Technology specialist, pro clima Research and Development,, He provides insights into his work on Twitter and Instagram.

Holger Merkel, Blower-Door-Messdienstleister, Referent der pro clima Wissenwerkstatt und Leiter von Zertifizierungskursen

Holger Merkel, provider of blower door measurement services, speaker at the pro clima Knowledge Lab and instructor for certification courses.. He has documented examples of leaks in his most recent project He also publishes specialist articles on issues such as blower door tests on

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