Different Runs – Different Materials

Due to a mix-up in terminology, the homeowner originally received just four single rolls (two double roll bolts ) of wallpaper .  They needed eight total single rolls (four doubles ), so two more double roll bolts were ordered.  Being unable to get the same run number , we anticipated a slight difference in shade .  But didn’t expect that the two new bolts would be thinner than the two original bolts . 

What the heck is up?! 

The selection book says this is a non-woven product, and a paste the wall installation method .  Yet the label on both the original and the new rolls says to paste the paper.  Even more puzzling, the instruction sheet included inside the rolls says that it’s  non-woven material , and to paste the wall. 
It’s important for the installer to know what material he’s working with, so I needed to know if this was PTW or PTP .  Usually, non-woven paste the wall are thick and hard to tear , due to their 20% polyester content .  The fat roll felt and acted like a non-woven .  But the thinner roll was thin and crispy and easy to tear.  I sure thought it was a paper material , which would require a different installation technique .  In recent months, I’ve had this same manufacturer send several rolls of the a particular pattern , but some were non-woven, and some were paper.  So I thought we might be experiencing this again.  It’s important to know what you’re working with, because different materials require different installation techniques.  If a DIY ‘er follows the instructions to paste the wall , but it’s actually a paste the paper material, he’s going to encounter a whole lotta mess – and ruined paper . 

Here I used my 24” wide straightedge to tear off a strip of wallpaper from the roll of thin material.  This answered my question.  See the little fibers ?  Those are indicative of non-woven papers, and their polyester content .  Once I saw this, I was certain that it was, indeed, a non-woven material / paste the wall . 

So this material was easier to hang than traditional papers, because no need to paste , book , and let sit for a few minutes.  There are other pluses, too, to NW papers, and most of us professionals like hanging them.  But I wasn’t 100% pleased with the thin version of this non-woven material.  For one thing, its stiff, crispness made it difficult to manipulate, and prone to crease . Also, notice the splotchiness of the paper.  This showed up on the dry paper, right off the roll.

But paper that has been pasted and hung on the wall showed even more splotches .  This is scary, because there is a issue called blushing or staining , where the paper looks like it’s wet , but never dries out.  Do a Search here to learn more.   This happens mostly with non-woven papers , and is tied to certain types of paste .  Which is why I don’t use those pastes!  So curious as to what is causing this slight discoloration.

I believe the spots were just due to moisture .  As I worked my way across the wall and time went on, the paper I had hung first had a chance to air out and dry.  The blotches disappeared . 
 
I’m curious as to why the difference in material.  Maybe the manufacturer was using different factories?  In different countries? Or supply chain issues / material shortages meant that their usual substrate and inks were not available .  Or just trying to cut costs?  Saving money isn’t a bad thing.  But it is, if it cuts down on the product’s quality. 

William Morris ‘ Fruit ‘ on Master Bath Accent Wall

A cozy nook. The homeowner likes to spend time here, soaking and relaxing. And recovering from supervising high school athletic activities !
This is a 1939 4-plex in the Montrose area of Houston that was beautifully renovated into a single-family home. So this entire master suite is carved out of what was originally one 1- bedroom apartment .
Note my white 2′ x 4′ sheet of plywood over the claw-foot tub , so I can safely access the wall above.

The wallpaper was placed on just one accent wall , above the tile wainscoting / chair rail . During the initial Sunday afternoon consultation , both the homeowners and I felt that this pattern on all the walls of this large master bathroom would be too overpowering . So they opted for just one accent wall .

The design doesn’t have a strongly noticeable secondary or vertical pattern , but I still took the time to center the most dominant feature (the pomegranates) on the tub faucet . The faucet guy , tub guy , and tile guy didn’t get everything perfectly lined up – but nobody’s even noticing. What matters is that the finished nook looks fantastic!
Also of note is that, in this near-100 year old home, the wall was bowed , and it wasn’t possible for the tile to lie flat against the entire surface. So there were some areas where the grout was 1/4″ wide, and some areas where the wall actually overshot the tile, leaving no visible grout at all. So at the area where the wallpaper met up with the top of the tile and the uneven grout line, I made a fat cut , to try to disguise the uneven line. Do a Search here to see previous posts on fat cuts .

This wallpaper design is by William Morris , who was a strong force during the late 1800’s and early 1900’s , in the Art Nouveau and Arts & Crafts movements . His work is having a resurgence in popularity right now. Most are more symmetrical and repetitive than this example ( Google Strawberry Thief ) , but, true to the design aesthetic , all of them involve natural elements , such as plants , flowers , fruits , birds , and animals .
In this close-up shot, you can see the raised ink of this print , which gives a slight textured feel .
The manufacturer is Morris & Co. Usually M&C prints on a user-friendly non-woven material . But in the last year or two I’ve come across more and more M&C that are printed on the old-fashioned, traditional, what we call a British pulp substrate .
Non-wovens are strong , durable , stain-resistant , humidity – resistant , easy to install , and easy to remove when you redecorate . Pulps , on the other hand , are just the opposite . Do a Search here to see my previous posts.
None of this is a deal-breaker. The installer just needs to know what he’s getting into, before taking on the project.
We hunted. This particular pattern was not available by any vendor in the NW material. Maybe it’s COVID , or supply chain issues , or maybe it’s a British thing (even though many American and Canadian companies are printing the Wm Morris designs ). Couldn’t find any outfit offering Fruit in non-woven.
At any rate, the paper went up beautifully, and the basic paper material will hold up well, even if the homeowner steams up the room on her long tub soaks , and the pattern is lovely in the vintage home with new tile , tub , and faucet .

Inexplicable Pattern Match

This happens not infrequently, and it’s puzzling to me. At the top of the wall, the pattern match drops down to the right.

Yet at the center of the wall it matches perfectly.

But get to the bottom of the wall and it drops again, but this time to the left.

Yes, some papers do stretch / expand when they get wet with paste. But that’s not the situation here, because this is A.) a non-woven material, which generally do not expand, and B.) every strip was treated the same way. In other words, if every strip is pasted, booked, and left to sit for the same length of time, ALL the strips should expand the same amount, right? And the pattern should match at the top, middle, and bottom. Right?

But even that argument doesn’t apply, because this, again, is a NW / non-expansion material, and, besides, I didn’t paste the wallpaper but pasted the wall instead. So the material had no chance to get wet or swollen with paste.

I believe this is a factory trimming issue. Somewhere along the line, the trimmers got off-track, or started trimming on the bias, just enough to throw off the pattern match.

In cases like this, the rule of thumb industry standard is to match the pattern as best as possible at eye level (middle of the wall) and let nature take its course, as they say, on the upper and lower sections.

Luckily this particular pattern only had one motif area that matched across the seams, and there were only three of those per the height of each strip. So the two slight mis-matches were both way above and below eye level, so not very noticeable.

This pattern is called Palm Leaves and is by Cole & Son . Other than this printing snafu, it’s a good quality wallpaper. See previous post