Mildew Under Wallpaper

Digital ImageSee the dark line under the seam? That’s mildew. When I stripped off the other sheets on this wall, there was a little bit of black mildew scattered about. This wall adjoins the laundry room, so it’s possible that humidity got inside the wall, and caused the mildew. There was no mildew on any of the other walls in the bathroom.

Mold can cause health problems; mildew simply wants to grow through wallpaper and put ugly spots on the surface. It also interferes with adhesion, since it’s powdery.

I used bleach to kill the mildew, and then primed with KILZ, which will seal it and prevent it from growing or showing through the new wallpaper.

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