Posts Tagged ‘twisting’

Wallpaper Woes in Chinese Restaurant

April 10, 2022
While waiting for my order to be ready, I couldn’t help but notice problems ….
Wallpaper starting to curl at the seams.
Wallpaper twisting in corners as the building shifts and drywall moves. This is pretty common in Houston.
Other signs of poorly maintained building and/or climate control issues.
Seam curling back. I believe this to be a lower-end solid vinyl wallpaper on a gritty paper backing – one of my least preferred types.
When the walls are not prepared correctly, and the paper is not hung properly, and when there is a lot of humidity (door left open, steam from kitchen getting into waiting area, A/C not running or turned off at night), humidity can enter into the seams and be wicked up by the paper backing. The paper expands and pushes away from the wall, causing the edges of the wallpaper to curl back.
The next step is that the vinyl surface can actually delaminate (come apart) from the paper backing. This is pretty impossible to repair.
At the very bottom, you can see the vinyl separating from the paper backing.
The wallpaper has been wrapped around this outside corner, and a new piece of paper overlapped on top of it. When this is done, with vinyl material, you’re supposed to use special vinyl-over-vinyl ( VOV ) adhesive, because regular wallpaper paste isn’t formulated to adhere to vinyl / plastic .
But even if the installer had used the correct adhesive, under humid conditions or with improper wall prep, the odds are that this wallpaper job will start to fail.
Also note dirt along the ceiling, and along the chair rail in the previous photo. General lack of maintenance and I am really suspecting lack of climate control.
The black smudges appear to be mildew coming from underneath the paper. Again, probably related to humidity.
Vinyl wallpaper is a sheet of plastic, and moisture can be trapped behind it. That can be a breeding ground for mold and mildew.
So why use vinyl wallpaper? Mainly because the surface is much more washable than most other types of wallpaper. In a business, washability is attractive.
But these property owners chose a low-end vinyl product, most likely skipped proper wall prep such as a wallpaper primer, and have not provided a hospitable environment for the paper.
There are other vinyl wallcoverings that would have held up better. For instance, vinyl on a scrim ( woven fabric ) backing, or the newer backing called non-woven , which has a 20% polyester content, and therefore less likely to wick up humidity.

Soft Jungle Mural for New Baby’s Accent Wall

November 19, 2021
The first installer was inexperienced, and left gaps at the seams, wrinkles, creases, mis-matched pattern, and even tears. The homeowners had their painter strip off the wallpaper, patch the torn areas of the wall, prime, … and then they had to purchase a whole new mural. Oh, and next they called me! 🙂 The painter was unschooled on wallpaper, too, so he just grabbed something off the shelf at Sherwin-Williams that had “wallpaper” on the label, and rolled it on. That particular primer, Pro 935, is meant to be used in different sorts of situations, and was too glossy and too tacky. I covered it with my preferred Pro 977 Ultra Prime by Roman.
Putting latex / water based paint over torn drywall will often cause the moisture from the paint to soak into the drywall paper and cause it to expand, which creates bubbles. These look bad under the new wallpaper. Here I have cut around one such bubble and removed the top layer. I will skim-float over this area, let it dry, sand it smooth, and then prime over it.
A whole wall’s worth of mural fun rolled up into one cylinder. They provided powdered paste – which I did not use, mostly because these tend to be too wet and can lead to staining on these non-woven materials. I did, however, take the paste home with me, because every now and then you run into a delicate wallpaper that requires this stuff – which can be hard to source.
I started hanging in the middle of the wall. Mostly because whoever measured forgot to add FOUR INCHES to both the height and the width. Instead, the manufacturer added only one scant inch at each side. This didn’t give much play at all, to accommodate trimming at the ceiling and floor, and walls / ceiling that went off plumb / level. This means that if the ceiling wasn’t level, it could start sloping either up or down, and that means the mural would start getting either cut off, or some white space might show at the top. By starting in the middle, I could split the difference between any irregularities, and, hopefully, over the 12′ width of the wall, now divided into two 6′ sections, any off-level sloping would be minimal enough that it wouldn’t visually impact the top or bottom of the design. I know that doesn’t make sense to a lot of you reading this, but I do have a number of paperhangers who follow my blog, and they do “get it” and hopefully will learn some new tricks.
monkey, giraffe, flamingo, cockatiel
Finished and ready for furniture – and a baby!
For this non-woven product, I used the recommended paste-the-wall installation method. I can see why the other guy had difficulty. This was a very thin, but stiff, material. I got wrinkles, too. It took some time and some finesse to urge them out of the paper. This is another reason why I started in the center of the wall. If wallpaper starts warping or wrinkling, it usually will cause the outer edge (the edge not butted up against the previous strip) to expand and twist. As each subsequent strip goes up, the twisting and distortion becomes magnified. You can’t butt a straight edge of a new strip up against a strip that is bowed out of shape on the wall. Thus, by starting in the middle, I can minimize the number of bowed edges. Instead of four, there will be only two. And the amount of distortion will be less per panel. I will note that this usually does not happen with non-woven materials.

A big chunk of mural was cut off by the door and lost to the trash pile. As the mural worked its way across the top of the door and down the right side, a different set of leaves, and a lot of blank area, was going to end up in that 6″ wide space between the door and the wall. I thought it would look cooler if the design of the foliage to the left of the door continued on to the right side of the door. So I saved the strip that got cut off by the door and then did some tweaking in various ways, and got that narrow strip placed to the right of the door. When you look at it, it appears that the leaves and fronds are passing from left to right uninterrupted through the doorway.

The home is in Bellaire, in Houston.

Schumacher Pyne Hellyhock Hell

March 22, 2020


Pardon my French, but we don’t call this company “Schitmacher” and “Poomacher” for nothing … With so many quality substrates and inks out there, and so many other companies making top-notch papers, why, oh WHY does Schumacher continue to use outdated materials and methods – especially when they’re crappy?!

The wrinkles here are referred to as “waffling” or “quilting.” This is caused by the wallpaper backing (substrate) absorbing moisture at a different rate from the ink on the front. This moisture causes the substrate to expand more than the ink, which creates wrinkled areas.

I had this problem with the Bibliotheque I blogged about last week. But that was not as severe, mostly because the inked area covered most of the paper.

In this Pyne Hollyhock, most of the ink is concentrated down the center of the strip, leaving large un-inked areas along the outer edges.

I was able to smooth out many of the smaller wrinkles in between the blue flowers. Others may disappear when the paper dries.

But the blank / white areas had wrinkles so big that they would not be smoothed out. See third photo. The other thing is, because this white area was twisting and warping so dramatically, you can bet that the edges of the strip will not butt up properly with the next strip.

Sometimes you can double cut (splice) seams that are not butting up correctly. But since this paper also presented the huge wrinkles, it still is gonna look bad at the minimum, and have large gaps at the worst.

A liner might help (do a Search here), but I doubt it would tame the worst wrinkles, especially at the edges. In addition, it adds more material cost and at least another day’s labor.

I did a couple test strips, employing different approaches with each. Such as dampening the front before pasting to even out the moisture distribution. Booking for extended lengths of time. Booking and then opening and repasting. Different smoothing techniques. I even got out the heat gun to speed up drying to see if the wrinkles would flatten.

But I never got a result that I felt was acceptable. And certainly not what this family deserved, nor worth the price they paid for this so-called high-end brand.

It’s not often that a paper beats my butt, but I did end up throwing in the towel on this one.

Too bad, because the homeowner and interior designer really love the pattern, which is one of Schumacher’s most popular. Right now, it’s undecided if they will see if one of my buddies wants to tackle it, or if they will choose something else.

This was to have gone in the dining room of a newly renovated home in the Woodland Heights of Houston.