I have a small issue that I, for some reason, hadn't thought about before. Anyway, we fixed up the living room some time ago and hung wallpaper. On one wall, there are two openings (I think one is for ventilation, and the other is for a tiled stove that's unfortunately been gone for a long time). They are about 30x35 and 25x35 cm. The previous owners had tried to wallpaper over the openings with moderately successful results. This time, we refrained from wallpapering over them. The rational thing would have been to brick in vent grilles or something, but we didn't really have the time or energy for that. Instead, I thought about hanging perforated sheet metal with a frame around.
So said and done. I made a couple of frames with a rabbet where the perforated sheet metal is mounted, essentially like two pictures. They weigh around 500 grams each. Now to my dilemma: How the heck do I hang these up? The substrate is porous on the sides of the openings (and also over towards the ceiling trim), so I don't think screws will work. By one opening, it's mostly just a few layers of old wallpaper. I would prefer not to use adhesive as I want to be able to remove the sheets.
You guys are usually quite clever in here.. 🙂
It looks something like this (pink is porous mortar reinforced by a few layers of old wallpaper):
