Are there any people with problems concerning the house wrap Tyvek?

Answer 1

Tyvek® is the DuPont brand name for spunbonded olefin, which was invented around 1955.

There are specific instructions for how Tyvek should be installed to get maximum protection from both moisture and air flow mitigation. I would make sure you or your contractors follow these procedures and use supporting materials that meet Dupont's specifications. Specifically, a special tape must be used to secure two adjoining Tyvek sheets. Some contractors will use a lower quality tape in an effort to save money. The sub par tape breaks down over a few years and allows air to flow between the overlapping Tyvek sheets, greatly reducing their effectiveness.