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21 replies
Tape for outdoor drywall
obviously no idea what you’re talking about.Rickard. said:
If you buy from reputable players in the Swedish market, the installation instructions always at least follow ama house and often "more". Not following the installation instructions can, of course, still be correct, but doing so is generally not wrong.
Your other claims are wrong and at best extremely exaggerated. I can't remember seeing diffusion-open tape ever, not even on several hundred million projects, which were obviously not built by small contractors.
most materials and products are not manufactured in Sweden, following the assembly instructions would have been completely wrong, take for example WC-modules from Geberit where the recommendation is to screw down into the joists. Foreign regulations do not work with Swedish ones.
And Ama is not always followed, ama is not a regulatory framework that must be followed.
Regarding the tape, take for example:
Sealing tape Siga Wigluv 150
"Tape intended for outdoor use. Used for sealing joints in wind protection boards and membranes, as well as sealing in valleys and connections to extensions or penetrations. It is diffusion-open, which means that any condensation and moisture in the construction has a chance to be ventilated out. It is completely wind and waterproof and has UV resistance for 12 months. High adhesion strength in cold and heat in a safe way without building damage. Diffusion capacity sd < 2 m.
Type of application: Permanently rainproof and airtight connections for façades and inclined roofs."
Strange that they write as they do then for a product specifically manufactured to seal façades?
My experience:
Most tapes fail because they are not UV resistant long enough.
If you expect a construction to stand without a facade for a long time, you use the expensive tapes. Or if you need to seal against concrete. Otherwise, "regular" construction film tape works.
Most tapes fail because they are not UV resistant long enough.
If you expect a construction to stand without a facade for a long time, you use the expensive tapes. Or if you need to seal against concrete. Otherwise, "regular" construction film tape works.
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