Posts Tagged ‘a/c’

Humidity Damage to Vinyl Wallpaper

June 15, 2021

As I like to say, Humidity Is The Great Enemy Of Wallpaper.

This small bathroom with no A/C vent has more problems with moisture than most, as evidenced by the stains and flaking paint on the ceiling.

But let’s focus on the wallpaper. Back some decades, just about all you could find were these pre-pasted paper-backed solid vinyl papers. I have never been fond of them. https://wallpaperlady.wordpress.com/stay-away-from-pre-pasted-paper-backed-solid-vinyl-wallpapers/

the paper backing seems to absorb humidity through the seams. As it sucks up moisture, the paper expands, and that causes the paper to push away from the wall, creating the curled seams you see in the photo. It advances past that, to where the paper backing actually delaminates from the vinyl coating and from the wall. The surfaces come apart, and cannot be “glued down.”

A small part of this problem could have to do with improper surface prep, such as a good wallpaper-specific primer. But the brunt of the issue lies with too much humidity. An air duct in the room would help bring in fresh, dry, air-conditioned or heated air. And keeping the door open would have given humidity a way to exit.

But best of all would have been to avoid this low-end plastic / paper combination wall covering in the first place. A paper wallpaper, or one of the newer non-woven (synthetic fiber) materials would resist humidity much better.

Dark & Mysterious Witch & Watchman Wallpaper

January 29, 2021

This small powder room in the Rice University neighborhood of Houston was buried under at least four layers of old wallpaper. The homeowners intended to DIY new wallpaper. In the top photo, they have partially removed some of the layers. But not too far into the project they realized that the prep required was over their heads. Enter the Wallpaper Lady. 🙂

I won’t go into all the details of getting these walls into shape. But I will say that it took a day and a half, and I wasn’t completely satisfied with the end result. But sometimes you can’t surmount what was done over prior decades. I brought the wall to a good state for hanging the new paper.

And what a perfect choice they made! The original wallpaper was a beige faux-finish sort of design that was popular in the ’90’s. The couple wasn’t sure what they wanted, but, on our initial consultation, I showed them a sample of this that I had hung previously https://wallpaperlady.wordpress.com/2019/03/02/birds-on-black-wallpaper-by-witch-and-watchman/ , and they were instantly mesmerized. On the company’s website, they zeroed in on a slightly different pattern with equal drama.

The wallpaper is on a non-woven substrate, and can be hung via the paste-the-wall method. In bathrooms, with sinks and toilets and windows and other things to cut around, I find it better to paste the paper. It went up nicely, and should perform well for years, even being more resistant to splashes and stains than many papers. The non-woven substrate should resist curling at the seams caused by humidity – important, since this 100 year old home has no A/C vent in the powder room.

Hidden Trap Doors Covered With Wallpaper

December 2, 2017

Digital Image

Digital Image


The top photo shows where a cut-out was made in the wall, to allow the plumbers to have access to the bathtub pipes inside the wall. The chunk of drywall they cut out has been replaced, and you can see around that the original wallpaper, which is a green grasscloth. Around that, the grasscloth has been painted tan.

The second photo shows another wall with a hinged door that allows access to some attic space behind. Let’s hope that whatever electrician or A/C guy who needs to crawl through there will be thin and trim!

The homeowners had to live with this access door in the middle of their new baby’s nursery wall. The wall was to be wallpapered, and they wanted the door to disappear as much as possible. When I got there, there was about a quarter-inch gap all around the trap door. Instead of trimming the wallpaper to the wall and to the door, which would have left a dark 1/4″ gap showing all around, I trimmed close to the trap door, and left just that little 1/4″ bit of wallpaper “flapping loose.”

You can still see the door, but it’s fairly well camouflaged, and looks much better than before.