Why steam with PVC otkoskh. Expert opinion

Nuances mounting window frames when installing plastic slopes

One user with the nickname FORUMHOUSE dm5712 recently installed windows, but there was a question - whether a vapor barrier is needed. And is there a particular installation of a vapor barrier in the climate of the Moscow region. We asked about this artist Exchange Andreev Andrei Nikolaevich.

dm5712

Newly installed windows in the apartment. It later emerged that the wizard does not set the vapor barrier tape according to their beliefs, that is. To. The slopes are planned insulated PVC.

Wall of aerocrete. Pre-opening mastics also not processed. Assembly seam filled with high quality, not sparing the foam (here I trust the master).

I reviewed all the videos on YouTube, all forums and articles. Does the right to life made him mount scheme, or must now cover the seam at least STIZ-B, glue the ribbon on the front side of the frame?

As far as this is critical in Moscow climate?

Andrey Andreev

Head assembly department LLC RICO

Regardless of the region, mounting seal must be protected outside of atmospheric precipitation and the negative influence of the environment, and is protected inside from condensation and moisture. Otherwise there may be the appearance of mold and mildew in the assembly seam and premature destruction of it.

The very fact that the Master reasoned rejection of the vapor barrier joints warm slopes of PVC raises questions to him as an experienced master! Warm PVC slope seam does not seal against vapors and moisture to 100%, requiring additional foam seam protection.

It should be borne in mind that the foam is not a moisture barrier material and the protection of an assembly seam on incoming moisture inside the premises is required. There are two options of protection - vapor barrier film or sealant for interior work, such STIZ-B.

Properly executed and protected assembly seam - a pledge of comfort and durability of the window!

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What do you think, a vapor barrier is needed or is reinsurance?