Here I’m preparing to hang wallpaper on new drywall in a new addition to a 1930’s home in east Houston . First I’ve used a damp sponge to remove all construction and sanding dust. Next I’m going to apply my primer. It’s important to note that, even though this is wall is a new sheet of drywall, it’s not all the same surface. We have mostly large expanses of drywall / greenrock (the type of drywall that’s used in wet areas ). But at the joints , and covering where the screws and nails hold the drywall to the studs , we have joint compound . That’s the strips of white areas. And next to the crown and door molding and the baseboards is overspray from the paint that was applied to the wood trim. Here I’ve applied my light blue-tinted wallpaper primer over the top 1/3 of the wall. It’s important to be sure that the primer you use is suited for use under wallpaper . But also that it will properly adhere to and seal all the surfaces on the wall . My primer (below) will stick to just about anything. But this photo is interesting. Because my primer has been rolled on evenly across the wall , and cut in with a trim brush along the trim and corners . But you see that the primer is drying at different rates . On the right side of the photo, the primer is applied over the bare drywall, and it’s drying quickly. But toward the left, next to the door trim , the primer is drying more slowly. This is because there is paint overspray next to the door trim . The paint is semi-gloss enamel , and my wallpaper primer reacts with it differently from how it reacts to flat paint or drywall or other surfaces. Not a big deal. Just be aware of the need for different dry times due to different surfaces the primer is applied to. My preferred wallpaper primer is by Roman , called Pro 977 Ultra Prime. It’s not readily available, but you can find it on-line. All Sherwin-Williams stores can get it from the distribution center – but not all store managers know that, or are willing to do so. I get mine from Murphy Brothers Paint on Bissonnet near the Rice Village , who stocks it just for me.
I usually insist on prepping the walls for wallpaper. But we had a time crunch here, and the homeowner asked her paint contractor to strip the old wallpaper and smooth the walls. He did a good enough job of skim-floating and sanding the walls smooth. Unfortunately, he neglected to wipe residual dust off the walls. The problem is that nothing sticks to dust. Not paint, not primer, and not wallpaper. Over time, stress, humidity, and other factors can cause the wallpaper to expand and contract, which puts tension on the seams. This tension tugs at the seams , and if the wall surface underneath is unstable ( dusty ), the layers can pull apart ( delaminate ), and you end up with failing seams. So I wiped down every square inch of wall, using a sponge and bucket of water. I rinsed the sponge frequently, to prevent build up of dust on the sponge. Here’s drywall dust wiped off in just a few swipes. In the background, you can see tracks of my damp sponge along the wall. These damp areas will need to dry thoroughly before I can apply my wallpaper primer. A heat gun helps speed that process along. One fear that I have is because, as you see in the photo, the contractor spray painted the woodwork, and in so doing, got a lot of overspray onto the wall. This can be painted over without much problem. But, as mentioned above, putting wallpaper over this can open a can of worms. Even with a good wallpaper primer underneath, the drying / shrinking wallpaper can put stress on the seams. If the wall underneath is dusty, the layers may let loose of one another and result in a popped seam .
This home in Kingwood (far northeast Houston) was flooded during Hurricane Harvey in 2017. The homeowners were pleased with their contractor’s work in getting the repairs made and getting them back into their home.
But when you get close and look at details, you can see that everything was not done as carefully as it should have been.
I guess the painters did not bother to remove, or even cover, the light sconces in this powder room. Because when they sprayed paint on the woodwork, plenty of paint got splattered onto the new fixtures. Look at the white residue on the base of the fixture.
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