Posts Tagged ‘tension’

Kill Point Over Door

May 5, 2023
If you’re hanging wallpaper around a room with four walls and four corners , virtually always when that last strip of paper meets up with the first strip you hung some hours ago, you’ll have a mis-match of the pattern . That’s why we try to tuck this in an inconspicuous place like a 1′ high corner above or behind a door.
But sometimes you don’t have a hidden corner , and all four corners are highly visible and run the full height of the wall. In these cases, it looks much better for the pattern to match floor to ceiling , as you see in this photo. But you have to put the kill point somewhere!
In these cases, a more logical and less noticeable location for the mis-match is the shorter area over the door – where nobody is going to be spending much time looking at, anyway.
My first strip is on the left, and the rest of the powder room has been papered, and I’m working my way from the right to meet up with that strip on the left.
Here it is going into place. I’ve matched the pattern on this new strip to the strip on the left . The strip is too wide, and is overlapping the strip on the right. And, as expected, the pattern doesn’t match up on the right.
As an aside, that blue plastic tape you see at the top of the strip of wallpaper is to keep paste off the ceiling. Once I’ve trimmed that excess paper off, I’ll remove the tape , and the ceiling will be nice and clean – no paste residue to wipe off or worry that it will be visible or damage the paint / cause flaking .
Here I’ve trimmed that short strip at ceiling and above the door trim. As you can see, it’s overlapping the strip on the right, leaving a bump, and plus, the pattern doesn’t match .
To be honest, with this busy pattern and this short area up over a door , this 1′ of mismatch isn’t going to be very noticeable. But I wanted to make it look better.
I’m going to splice these two strips together.
In the photo above, the left strip is overlapping the strip on the right. I don’t like the way the pattern is lining up. A splice will leave branches cut off, and will be noticeable.
So here I’ve reversed things and have overlapped the strip on the right on top of the strip on the left . Now the pattern gives a better option for a splice . I like that there is a curved vertical tree trunk that I can cut along. This will help disguise the splice.
So now to do the splice, I have push hard enough on my blade to cut through two strips of paper. But it’s important to not score the wall surface beneath. When the wallpaper paste dries and the paper shrinks a tad, it will put tension on the wall surface . If that underlying surface is not unstable or not sound, due to being cut into, or dust is another factor , that tension can cause the wall surface to pull apart , and the wallpaper can come away from the wall. Actually, it’s not the wallpaper coming away – it’s the layers of the wall pulling apart.
So I use these thin flexible polystyrene plastic strips under where the splice will be. You can’t cut through them!
Here I’ve pulled the two strips of wallpaper away from the wall and am positioning the plastic strip under where the splice will take place. Next, I’ll smooth the two wallpaper strips back into place, with the right one overlapping the one on the left.
I like to hold a single edge razor blade in my fingers , but you can use a blade holder or trim knife , too.
Here I’ve free-handed my cut , trimming along the vertical tree trunk at the top , then straight down through blank area, then through some branches, and finally at the bottom again trimming along a curved vertical tree branch. Now I’m removing the excess from the left side of the trim / splice .
Lifting the strip on the right so I can remove the excess piece that was trimmed off on the right.
Now removing the polystyrene strip.
Using my plastic smoother to gently press the two trimmed strips of wallpaper into place.
Here it is all done. Trimming along the vertical branch at the top has helped disguise the splice. The bottom area doesn’t match 100% perfectly, but I’m OK with that. I’ll work on smoothing out that teensy overlap and the seam will be nice and flat.
All done!
The wallpaper pattern is called Luminous Branches and is by York . It’s non-woven / paste the wall material , and very nice to work with, durable , stain resistant , and will strip off the wall easily and with no damage when you redecorate .
If you’re interested in the source for the splicing / double cutting strips , or the thin blue tape to keep paste off the ceiling, please email me at wallpaperlady@att.net

Peeling Paint = Potential Problems

March 3, 2023
Here before hanging wallpaper, I have removed the light fixture over the bathroom vanity .  Some of the wall paint was stuck to the base of the light fixture, so was torn away from the wall when the fixture pulled away.  In the photo, the cream colored area is the current semi-gloss paint , and the greyish area is the paint that is beneath it. 
Problem is, wall coatings surfaces should adhere to each other.  In other words, the cream colored paint should not have peeled away from the grey paint under it.
Usually this happens because proper prep was not done before the new layer of paint was applied.  Surface coatings (meaning paint or wallpaper ) won’t stick to glossy surfaces, nor to dusty surfaces.  So, if you’re painting over gloss paint, first a deglosser needs to be used, or a bonding primer .  A good paint store guy ( Sherwin-Williams ) can advise you.  If the original surface has dust , as from sanding or construction , this needs to be wiped off with a damp sponge , and that has to be rinsed clean frequently.  Often a primer should follow that.  Again, consult a knowledgeable paint guy.
All of this is not so desperately important if you’re going to apply paint.  Even on an unstable surface , paint simply dries and sits there.  It only peels away if tension or pressure is put on it, such as removing the light fixture in the photo above.
But wallpaper is different.  Because wallpaper shrinks when the paste dries , tension is put on the seams .  If the surface below is unstable , this tension can cause the surfaces below to come apart / delaminate .  This can result in seams that pull away from the wall.
This is not the wallpaper pulling away .  This is the layers underneath that have actually come apart from each other.
And it usually cannot simply be ‘ glued back down .’ 
You can do a search here to read previous blog posts about this issue.  

Spoonflower Swimmers on Art Wall

February 18, 2023
This couple in a nicely updated 1939 home in the Montrose neighborhood of Houston has a blank wall in the back of their large walk-in closet.  They have a lot of colorful , modern art and wanted a backdrop for it that would be fun, but wouldn’t compete .
One of the gals is an administrator for the athletic department in a local school district – so this small print “ Swimmers “ design is just perfect.  In fact, the day I hung this, she was away at a swim meet in Austin ! 
Note that Spoonflower offers scores of designs under the “ Swimmers “ name, so be sure to check all of them, and all the colorways they come in, too. 
Detail
Spoonflower is a little different from most wallpaper companies, in that it’s material comes in individual panels, or sheets – which they call rolls .  Each of these is 24” wide, and then you choose the length you want, between 3’, 6’, 9’, and 12’.  Each roll comes nicely packaged in an individual thick plastic zip-lock bag . 
These ones are upside down, so I had to re-roll them so the pattern would be coming off the top of the roll . 
Here are some tips about hanging Spoonflower. 
First of all, I like their “ Pre-Pasted Smooth Removable “ option.  And it’s the only one I’ll work with.  Their “ Traditional Pebble “ is a heavy vinyl that requires special trimming , bubbles, and is better suited for commercial spaces.  And, the Peel & Stick – well, everyone ought to forget  that sad stuff.  Please read my link to the right about that material. 
In this photo, you can see that the white material is thin and translucent , allowing things underneath to show through, sort of like a shadow .  So I need to be careful to make my pencil marks and notes on the wall very lightly. 
Side note: Never write on the wall or paper with ink or marker or crayon or grease pencil – it will bleed through the wallpaper .
This is a pre-pasted material , meaning that a thin layer of paste is already applied to the back.  To activate the paste , all you need to do is dip it in water , run it through a water tray , or spritz the back with a squirt bottle (uneven and kills your wrist) .  Their paste is quite adequate.  But I do like to have a little extra assurance, so I will roll on a little of my Roman 780 wallpaper paste onto the back. 
Then I take a sponge and drip clean water from a bucket onto the back of the paper .  Next I use a paint roller to spread the mixture of water and paste around the back .  This both activates the pre-paste, and also spreads around a little extra adhesive . 
Next, the paper gets folded pasted-side-to-pasted-side ( called booking ), then rolled or folded loosely.  I like to dip the ends of the rolled strip into a bucket of water – just 1/8” or so, to prevent them from drying out while booking.  Then the strip is placed in a plastic trash bag to prevent it from drying out during the booking period – a few minutes.  I use this time to paste and book my next strip . 
Spoonflower Pre-Pasted Smooth is a little different from most papers, because it’s designed to be overlapped at the seams.  Here I am lining up a seam.  This overlap does show as a ½” wide ridge along the entire length of each strip.  With busy patterns, it’s not very visible. 
Even with sparse designs like this one, once it’s dry and flat, you don’t notice.  Here’s the overlapped seam looking toward the light, which is leaving a very minor shadow.  And the overlap can be a good thing.  For starters, most wallpapers shrink a little when the paste dries, so you can end up with slight gaps at the seams.  Overlapping eliminates that.  Also, if a wall is unstable underneath, due to incompatible layers of paint , or dusty walls, or other, the tension of these drying strips of paper can cause the layers inside the wall to come apart / delaminate – and that will result in paper that comes away from the wall, taking layers of paint and etc. along with them.  This usually cannot be repaired or “ glued back down .”     (Do a Search here to learn more)  So overlapping the seams disperses the tension caused by the drying paper, and eliminates any seam from landing on the wall (because the sheets are overlapped ), so no popped seams .
Here is the seam looking away from the light.
Because Spoonflower Smooth Pre Pasted is thin paper and water-activated , it absorbs a lot of moisture from the water.  So the material can’t help but expand .  This can result in bubbles on the wall.  Also, when air pockets develop, there is nowhere for the air to escape, so, again, bubbles and blisters. 
If there are huge bubbles, it may be worth taking a brush or plastic smoother and chasing them out.  Or using a pin or razor blade to poke tiny holes to let the air out. 
But, really, if you can just relax and let nature take its course, as the paper dries, these bubbles will dry flat and disappear.  Trust me. 
Another thing that can happen is wrinkles .  These tend to form in the same place on every strip , and coordinate with how the paper was booked and rolled after pasting . 
The worst of these can be chased out with a plastic smoother.  But there are dangers to over-using the smoother tools.  Doing so can stretch the wallpaper and cause it to warp, which means the pattern might not match up perfectly on the next strip.  Or it might cause wrinkles that can’t be brushed out.  Again – if you can just sit tight and let the paper dry naturally, the creases and folds will disappear. 
I did some experimenting and found that booking and then rolling the strip up like a newspaper resulted in more wrinkles.
It worked better to paste, book, and then fold gently and loosely. 
Then into the plastic bag to sit for a few minutes .
Spoonflower PrePasted Removeable Smooth .  I like this stuff. 
Removeable means that it’s designed to strip off the wall easily and with no/minimal damage to your wall when you redecorate down the road. 
I suspect this is made by York , as it’s very similar to their SureStrip line .  Good stuff. 
The order comes with a mock-up of the strips / rolls you’ve purchased.
Install instructions
Promo info from Spoonflower .

Contractor Prepped Walls – But Left Dust

November 20, 2022
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 .

Modern Electrical Technology Makes Hanging Paper Easier

November 10, 2022
Bad photo, but I’m to put wallpaper in this room, including the tall and deep fir-down at the top right, which has two recessed light fixtures in it. You want the paper to go behind the light fixtures, not cut around them, if at all possible. In the photo, at the far middle left, you can see one fixture dangling by it’s wires below the fir-down.
Some of these recessed fixtures are tricky to take down (many won’t come down at all), but these ones turned out to be held in place by tension springs, which fit into sideways hooks, which you can see at the left inside the hole.
Here’s a closer look. These are the same type springs that hold the vent covers to exhaust fans in place. As you push them upward, they spread apart and hold the fixture securely in place. Easy-peasy! You can also squeeze the springs together and remove them from the mounting housing, which lets the fixture dangle from its electrical wires.
That’s what I’ve done here. Now it’s much easier to work the wallpaper around the fixture. But it could be made even easier – by removing the light fixture all together.
Most light fixtures have black and white wires coming from inside the wall that connect to black and white wires on the electrical fixture and are connected and held in place by a twist-on screw cap or wire nut. What’s very cool about this particular fixture’s electrical connections is that it’s made by this orange plug, which fits into the orange receptacle – no wires to twist or cap, and no need to cut off the power. It’s all simple and perfectly safe.
Here I’ve disconnected the two orange parts.
With the light fixture completely out of the way, it’s much easier to install the wallpaper, and no paste gets slopped onto the fixture.
Here’s the wallpaper installed and trimmed around the inside of the opening.
Oh, and don’t mind the slight pattern mis-match on the left … there were issues with un-plumb and un-level walls coming into play.
And here I’ve reconnected the orange plug parts, and placed the spring back inside those hooks, then pushed the light fixture up and back into place. Look at how nicely the flange (outer ring) of the fixture covers the cut edge of the hole and the wallpaper.

Tape Test for Unstable Walls

September 21, 2022

There can be reasons for unstable walls, mostly cheap or poor quality paint, dust, someone applied paint over dust, improper prep, incompatible layers inside the wall built up over years (oil based paint, latex paint, dust, gloss paint, joint compound, etc.).

These can cause problems with wallpaper, mostly with the layers delaminating (coming apart), which causes the wallpaper seams to come away from the wall. Sometimes sheets of wallpaper simply fall off the wall.

This isn’t so much a problem with paint, because it just sits on the surface. But wallpaper shrinks when the paste dries, or expands and contracts with humidity, and can put tension on the seams

Before wallpaper goes up, one way to test for such unstable surfaces is the tape test . Use a razor blade to cut an “X” into the wall, scoring through the paint and maybe into a few layers beneath. Place a strip of blue painters tape over the cut. Pull the tape off the wall.

If paint comes away from the wall along with the tape, or if layers inside the wall come apart, you know you have to do a lot of specialized prep to stabilize the wall before hanging / installing the wallpaper.

This example is an interesting twist. The homeowner used a piece of tape to hold up a wallpaper sample. Then used an ink pen to write notes on it. When removed, the tape took the paint off – in the shape of the writing!

Grasscloth Engineering and Logistics – Technical Details Post

August 21, 2022
Grasscloth is a natural material that cannot be matched from strip to strip, so all the seams will be visible . In addition, there is usually a slight but noticeable color difference between strips / panels (called shading or paneling ) . So it’s important to plot the layout of the strips to give the most visually pleasing overall look. Usually this means balancing the width of strips so they are all equal , at least on the same wall . We call this engineering .
This wall presented particular challenges , due to the widths of the elements. Grasscloth comes 36″ wide . You can use your straightedge and a sharp razor blade and trim it down to any width you want.
The width of both the large wall spaces to the right and left of the bank of windows was 34.” The width of each window was about 35.” The width of the two spaces in between the windows was 7.”
So you’d think I could trim my panels on either side of the windows, and then over the windows, to about 34″-36″ – give or take a few inches (or fractions thereof).
But that would leave me with two 7″ wide strips between these 35″ panels. Although the look would be uniform and mirror-image from the center outward, moving from right to left you’d have: 35,” 35″, 7,” 35,” 7,” 35,” 35,” … those 7″ breaks were just not going to look right.
One option was to determine the width of the wall (189″) and make each strip an equal width. This worked out to six strips, each at 31.5″ Not good, because this would mean a seam down either far side. And since those sides were 34″ wide, that would mean a 31.5″ wide strip and a strip 2.5″ wide. Not attractive at all, and it would use up an extra strip of wallpaper.
This six strips @ 31.5″ wide scenario might also land with a seam smack in the middle of those 7″ wide interludes in between the windows. Not attractive at all.
So I decided to make the two outer strips 35″ wide. That left 119″ of wall space above the windows to be covered with wallpaper. Do some math and you get four panels of 29.75″ wide. This gave a balanced and uniform look to the area over the windows, and also prevented seams from landing between the windows.
Moving right to left, I cut and hung the full length outer strip first. Then I cut and hung the strip over the window on the right. Then I measured to find the centerpoint of the window in the middle. Turns out it was a bit less than 29.75″ away. So I trimmed that next over-window strip accordingly.
Once that was in place, I measured from that center point above the middle window out to where my left full-height panel would fall, 35″ out from the wall. Took the resulting measurement and divided by 2. Lo and behold, each of the next two panels over the window was going to be a bit wider than 30.” No problem. No one (but a paperhanger or maybe an engineer) is going to notice a 1/4″ or even a full 1″ difference in widths between this strips over the windows.
Another thing to point out … it’s important that I took measurements before cutting these strips for this second left-hand section. Because, since grasscloth comes at 36″ (and walls can be wonky), if my strips had been narrower (say, 28″), that last full-height panel on the left might have ended up needing to be 37″ wide – and that wouldn’t work because it only comes 36″ wide – plus you need at least 1/8″ to wrap around the corner.
Luckily I had the flexibility to be able to trim the panels over the windows to any width needed, to accommodate all this.
If you’ve followed all this so far, let me also toss in that we also need to figure how to get paper in between those windows. More on that below.
In this scenario, I’m moving from right to left.
Area beneath the windows needs to be treated in the same way, and preferably with widths that match what’s going on above the windows. In addition, it’s tricky because after you move across 12′ of wall space, the strips above and below the windows are going to twist and torque out of shape, so that last full-length panel on the far left might not butt up perfectly with the last strip under the windows.
The grasscloth is black , and my wallpaper primer is white . It’s common for teeny gaps to appear at the seams . In this case, it’s likely that white wall would peek out from those gaps. So I like to stripe under where the seams will fall with dark (diluted) paint . This takes measuring , plotting , and also a heat gun to get the paint to dry before the wallpaper hits it, to avoid staining. You can do a Search here to read more about this technique .
Now let’s talk about getting wallpaper in between those windows.
As you can see in the photo, if I hang a 30″ wide strip, a whole lot of paper is going to be cut off and thrown away. Also, a whole lot of sticky, pasted paper is going to bump against that window molding and maybe even the window glass. A lot to clean up! And unwieldy, to boot.
My solution was to stop the wallpaper just a little below the tops of the windows. Then I would patch in a 7″ wide strip in between the windows. This is trickier than it sounds, because, if it were a paper wallpaper, I could simply cut along a design motif and overlay the 7″ wide piece. But grasscloth is thick and overlaps don’t look good. Also grass has no design elements , and the reeds of grass don’t necessarily fall perfectly horizontal , and even if you cut everything perfectly true to square , if the window molding is a teeny bit off-plumb , then your edges won’t butt up perfectly.
So that’s a good reason for striping the black paint under where the butt join will occur.
Same thing for the sections under the windows. I measured and positioned the strips so that the top edge (which I had trimmed to be perfectly horizontal) fell between the narrowest part of the windowsill molding, for less visibility.
I admit, instead of butting the two pieces, here I did overlap the 7″ wide strip about 1/4″ onto the piece under the window, right at that narrow junction. It’s only about 3″ wide, and I figured no one is going to be examining it that closely, anyway. This saved me about a half an hour of measuring, trimming, testing, repeat, repeat.
This is my second window interlude, and by this time I had realized that it’s hard to trim stiff grasscloth around intricate moldings precisely . So I used paint to fill in the edges around the window molding, just in case there might be any gaps between the grasscloth and the molding, so you would see black instead of the white molding paint. I did this with a small sponge; if I had used an artist’s brush it would have been a bit neater and tighter to the conforms of the molding. But sometimes you’ve gotta relax and realize that no one’s going to be scrutinizing the insides of moldings below shin-level.
Area over windows finished, with drapes back in place.
Turns out this particular grasscloth is so uniform in color (quite unusual, I will add), that you can’t really see the panels , nor their equal widths , anyway. I’m still glad I took the time to do all this math and trimming.
Area below the windows, done. That last seam on the left bears some explanation, too. Moving across the top of the windows, I measured that that last strip – the full-length strip – would need to be exactly 35″ wide. It butted up nicely to the last strip above the windows.
But, due to twisting , shifting , expansion , unlevel and unplumb walls and ceilings , and other factors, there is a really good chance that that last 35″ wide strip would not butt up perfectly with the last 30″ wide strip under the window . So I planned to splice these last two strips together.
Yeah, the drapes are hanging there, I coulda overlapped the two strips about 1/2″ and the drapes would have covered it. With a thin wallpaper, I probably would have done this. But grasscloth is thick, and an overlap would be visible , and also the adhesive / paste can’t be trusted to adhere as well to grass as it would to paper .
So I plotted for a splice. Instead of trimming my last strip under the window to 30″ (read above), I trimmed it to 32″ wide. That way, when I hung the last full-length strip to the left, which was 35″ wide, it overlapped the piece under the window by a few inches. Then I did a double cut and spliced the two pieces. See below for details about that technique.
Grasscloth is 36″ wide, and this wall area is wider than that. So two strips were needed. This means you’re going to have a seam, and since grasscloth seams are always visible, it looks best to plot to have the seam fall down the center. It uses more wallpaper to do this, but it looks much better than having, for example, a 36″ wide strip next to an 8″ wide strip.
As mentioned above, in case you get thin gaps at the seams, a dark stripe of diluted craft paint under where the seam will fall, will prevent white wall from showing through.
Rounded / bull-nosed edges and corners have been popular in new construction for at least 10 years. I wish they’d go away. They’re very difficult to trim around, and hard for the paper to conform to and adhere to.
It’s very hard to trim around that rounded edge, because the paper is hanging over and blocking your view, because grasscloth is thick and stiff and your fingers can’t feel through it, and because the edges aren’t necessarily true and plumb so a laser level or other level won’t help you much.
I use this little gadget as a trim guide. It’s actually a small section of the same corner bead material that drywallers use when they assemble these walls. Cut to about 1″ long and notched in different places where you might trim along the edge of the wall.
It’s intended that you place your trimming knife in one of the notches and slide the gizmo along the edge and make your cut. I find that awkward and also inaccurate. So I prefer to use the notches as a guide and mark where I plan to trim with a pencil. Since this wallpaper is black, I used this marking pencil from my home sewing kit instead. Chalk might work, but I was afraid it might now wipe off completely.
The pink pencil line was barely visible, but it was enough for me to use a scissors to trim along the grasscloth. I like this better than using a razor blade as I can see better, and also less chance of scoring into the primer or wall. Which raises its own set of issues – do a search here to find previous posts.
Inside view of the trim guide.
Finished arch. Note the four panels of equal width above the arch. And two flanking full-height panels also the same widths.
I was lucky that there was no pattern to match, so I was able to butt my two flanking strips right up to the edge of the bull-nosed corner. No trimming needed! Then I measured the remaining width between these two strips (the area over the arch), divided by four, and cut four strips of equal widths.
I hung the two on the left, and then one on the far right. This left one strip still to be positioned to the right of center. So the pieces are going to meet over the arch, rather than the last strip falling in a corner.
Same as the last strip under the window (discussed above), it’s really difficult to get your last piece to fit in here perfectly. I’ve done it, but it takes a lot of measuring, trimming, testing, retrimming, and often starting all over again.
So I did a double-cut / splice.
A double cut involves cutting each strip an inch or so wider than it should be, and overlapping the two. Then you take a straight edge and sharp razor blade and cut through both layers. This handy tool is a wonderful non-slip guide for this process. It was invented by an installer colleague in the Wallcovering Installers Association ( WIA ) and she has them fabricated in various lengths (along with other cool tools ) and sells them on-line. Contact me if you’re interested.
Anyway, it takes a lot of strength to cut through two layers of grasscloth, so somewhat difficult for lil’ ol’ me.
You also want to be sure to not cut / score into the wall, because the tension of drying wallpaper can tug at the wall and cause it to actually come apart, leaving an open seam that’s difficult to repair.
So you’ve got to put some padding under the wall where the cut will take place. I use special strips of polystyrene (hard but flexible plastic) to pad the wall. Also invented by a colleague in the WIA , who also sells other cool tools and supplies. Contact me if you’re interested.
This black grasscloth was printed on a white substrate. If the seams aren’t absolutely tight, there can be worries about the backing showing through to the front. So sometimes we’ll take a piece of chalk or pastel (never oil pastel or permanent markers because they bleed and stain ) and run it along the edge of the paper – from the back, and taking care to not get chalk on the surface.
I do this frequently with dark papers ( do a search here to see previous posts ) but opted not to do it with this grasscloth. It wasn’t necessary, and might have stained the porous reeds of the grass. It was beneficial, though, to have striped dark paint on the wall under the seams, as mentioned above.
Ugh. Grasscloth comes 36″ wide, and this section of wall is 38″ wide. It’s not visually pleasing, nor is it easy from an installation point of view, to have a 36″ wide strip next to a 2″ wide strip. Or to use scraps and put a 25″ wide strip next to a 13″ wide strip.
So best to plan two strips of equal widths. Two strips, each 19″ wide, with the seam down the middle.
Actually, the strip on the left was 19″ wide, but I trimmed the strip on the right to 21″, because I like the wallpaper to extend 2″ over the top of the door molding. This provides a more stable surface in case of shifting foundation or walls, and less likelihood (knock on wood) of the seam opening up should the house / drywall experience shifting.
Note that design “rules” caution against seams down the middle of spaces. But it would have been more visually distracting (and used up more paper) to have made three strips of each 12.75″ wide. And would have looked even dumber to have used scraps left from other walls and put together two strips of disparate widths.
So the homeowner and I discussed during our initial consultation , and she was happy with the center seam. Once it was all finished, this particular grasscloth was so even in tone that you barely see the seams, anyway. Win-win!
This did use up additional paper, though, as noted in a previous photo above.

Sneaky Snaky Dining Room Accent Wall

August 6, 2022
Beautiful symmetry …
But look closer – those intertwining lines aren’t fronds of vegetation – they’re snakes !
The wall before. It’s a mid-century home, but the drywall here is new. Per my request, the contractor left it taped and floated , but not painted or covered with any coating .
I had planned to simply prime this wall. But after examining it more closely, the surface was a little grittier than I like. So I ended up applying a very light skim-coat and sanding it smooth .
Here the smoothed wall has been primed with Roman Pro 977 Ultra Prime .
I’m plotted out the center of the wall and am using my laser level to ensure that the design in my first strip falls right along the center, and also is nice and plumb .
My work table with two strips of wallpaper . Spoonflower packages its wallpaper differently from other companies. It comes in widths of 24″ and lengths of your choice of 3,’ 6,’ 9,’ or 12.’
Get their Pre-Pasted Removable Smooth option, which is water-activated , and is wonderful stuff.
Do NOT get the Peel & Stick , nor the Traditional Pebble . The P&S and the Traditional are both very difficult to work with, and can lead to bubbles and creases on your walls , plus cause damage when the wallpaper is stripped off later.
Back to the photo – the blue cube thing in front is my laser level , shooting its red line at the wall.
Close-up
I’m using this blue plastic tape on the edge of this strip of wallpaper. This will prevent paste from getting onto the wall or ceiling.
The accent wall stops in this left hand corner, so I need to trim off the excess. But I don’t want to get paste onto the un-papered wall. Paste can cause the wall paint to crackle and flake off.
So here you see how the blue tape is keeping paste off the wall. Once I finish trimming, I’ll check the back to make sure all of the blue tape has been removed. Any areas where the blue tape might be still on the back of the wallpaper , the paper won’t adhere to the wall .
This tape is available to paperhangers / installers . If you’re interested, shoot me an email wallpaperlady@att.net
Another thing about Spoonflower , the seams are meant to be overlapped, by 3/4″ . Note that this does create a ridge that runs vertically the length of each seam. In the grand scheme of things, this isn’t very noticeable.
Actually, there are advantages to overlapping seams in this manner. No worries about white substrates showing at the seams, nor the paper shrinking and leaving gaps at the seams.
Also, in case of unstable walls that might come apart ( delaminate ) under the tension of the drying / shrinking wallpaper, overlapping disperses the tension and helps prevent wall failure.
This pattern is called Serpents and Apples and is by Spoonflower . Spoonflower has a lot of cute designs , and also a good number of fun avant garde patterns like this one.
The homeowners have some other non-typical décor that will meld perfectly with this wallpaper. Think life-sized skeletons .
… Notice how that light fixture hanging in the center of the wall kinda looks like a skull ? …
The home is in the Oak Forest area of northwest Houston .

More William Morris Strawberry Thief in Houston Heights Hall Bathroom

June 24, 2022
Because I feared unstable walls in this 1920’s bungalow in this neighborhood (do a Search for previous posts), before hanging the decorative wallpaper, first I hung a non-woven liner paper on all the walls. That’s the white material you see in the photo.
The liner was hung horizontally so its seams can’t line up with the decorative paper. The idea is to disperse tension from drying wallpaper and changes due to humidity and etc., so as to deflect tension away from sketchy wall surfaces, and thus prevent delamination of multiple unstable layers deep inside the wall. Again, do a Search here to learn more.
Finished vanity area, with pattern centered on the light fixture.
Corner shot.
This colorful and symmetrical pattern is quite popular; I’ve hung it a number of times just this year.
Englishman William Morris designed wallpaper and fabrics during the late 1800’s and early 1900’s.
The styles then were Art Nouveau and Arts & Crafts. This design reflects a bit of each.
Wallpaper expands when it gets wet with paste, and then can shrink just a tad as it dries. The liner helps prevent that, but you can still end up with teeny gaps at some seams.
To prevent the white backing from showing through, I run a stripe of dark paint under where each seam will fall.
I use matt finish craft paint from the hobby store, diluted with a little water (in the orange bottle cap) and smeared on the wall with a scrap of sponge. Use a ruler or level and a pencil to mark where you want to stripe the dark paint.
Remember to allow for that expansion as the paper absorbs moisture from the paste. Meaning, if the paper is 20.5″ wide, and expands 1/2″, you’ll want to run your line at about 21.” And make sure that your painted swath is about an inch wide.
I also run a bit of dark chalk along the edges of each strip, to prevent the white substrate from showing at the seams (no photo).
Morris & Co. makes this iconic Strawberry Thief.
Interestingly enough, most times when I’ve hung a Morris paper, it’s been a non-woven paste-the-wall material.
Today’s option was a surprise – a traditional British pulp . This is a pretty basic and somewhat old-fashioned type of substrate . Sort of like construction paper, or the pages of an old family Bible .
The paper is very fragile , and can tear easily. You have to keep using new razor / trimming blades, because the material dulls blades quickly, and when dull they will drag and tear the paper.
Pulp papers also require a soaking / booking time after pasting , to allow time for the material to absorb the paste , soften a bit, and expand . The edges of the strips like to dry out , so I’ve learned to dip about 1/4″ of the booked ends ( booked means the pasted side of the wallpaper strip is folded onto itself, bottom edge folded up and top edge folded down to meet in the middle), into a bucket of clean water.
Then it goes into a black plastic trash bag to soak and relax for a few minutes before hanging. I use this opportunity to paste the next strip.
Non-woven wallpapers have advantages, because they do not expand when wet, and therefor you can get accurate measurements. They also can be pasted and hung immediately, with no waiting time. Alternately, you can paste the wall .

Another Installer’s Problems With British Pulp Paper

May 31, 2022
Scroll down a few posts to see where I hung this exact same pattern, and coincidentally just a few blocks away. I had absolutely no problems. Yet this poor installer struggled and ended up with many dissatisfactory issues.
In this photo, you see where the wallpaper has shrunk at the seams and left a gap, some tears, and a patch to cover a mishap.
More tears and gaps.
Paper coming lose from the wall. Not taking primer or paint with it. But you can see the adhesive clinging to the back of the paper. I’m suspecting this is clay adhesive. Nothing wrong with clay, but I prefer one of the vinyl-based adhesives.
Not sure what the guy used as a primer (if any).

This is the popular Strawberry Thief by William Morris , usually sold by Morris & Co. I’m believing the problem here is the material on which this pattern was printed.

The site from which this was purchased called it a ” heritage ” paper. It is, indeed, made of what we call a British pulp material. Old-fashioned, it is. These days, most wallpaper coming from the U.K. is printed on non-woven stock. The paper I hung a few days ago was non-woven.

Pulp wallpapers have a nice look. But they have no protective coating, so become soiled easily. They soften when wet with paste and tear easily, and can also shred under the razor blade while trimming. They expand when wet with paste, and then shrink as they dry, which often results in gaps at the seams.

Even skilled installers can have difficulties when working with this stuff. In fact, on the private Facebook page of the Wallcovering Installers Association ( WIA ), we have just been discussing this very same topic.

I believe this previous installer had a few shortcomings, such as lack of skill and maybe used the wrong or no wallpaper primer. But I think the real and unsurmountable culprit was the substrate.

Moral: If given the option, choose a non-woven material. They are made with minimum 20% polyester content, and thus are resistant to shrinking, tearing, and tension at the seams. Many other advantages, too. Non-wovens are also referred to as paste the wall .