I decided to side the remaining walls. The left wall is longer than the siding pieces, so place the pieces against each other in a scattered pattern, just like real siding. Since the walls are sided, I finished the right bay wall, which is identical to the front wall. Complete it in the same way as the front, with only the bottom bay trim left to add. When you install the corner trim, you'll notice that the front wall piece is shorter than the side wall. This design allows for some leeway when the roof is added.
I painted the left side wall and installed the windows, which are the same as the porch window, so install them in the same way. I glued on all of the remaining corner trim for the walls. The back walls only require corner trim on the sides, so you'll need to spackle any visible gaps on the back side of the dollhouse. I labeled and bagged the leftover pieces from the sheets for easier organization.
While the windows and corner trim dried, I worked on the interior trim. I always stain or paint my interior trim on both sides. This ensures that no unfinished wood shows through when viewed from outside, even if you center it well. The center wall trim in the living room hides where two walls meet. For the bays, although they have trim, you still need to cover any edges where your wallpaper didn’t meet. I folded a strip of wallpaper in half and glued it to the bay edges. The pattern doesn’t need to match up since it will be covered by trim. Do this for both sides and add another strip of wallpaper to the top of each bay. If your wallpaper patterns don’t match perfectly, don’t worry. Once you add curtains and furniture, it won’t be noticeable. Just focus on making everything look neat.
Now that the interior trim is complete, I can move up to the attic. The attic walls must be finished before they are installed. I first primed all of the interior roof pieces since they will also serve as walls for upstairs. After priming, I dry-fitted and marked where each floor divides the panels with a pencil. This helps me plan which wallpaper patterns to use in each room. Most walls will feature two different wallpaper patterns along with painted overhangs. If you measured correctly, your roof panels should fit together seamlessly with all wallpaper aligned.
As you can see, all second-floor bedrooms now have walls, and I've already painted the bottom overhangs. For heavily patterned wallpaper, like in the floral bedroom, you can cover the gable edge with a piece of it. If your wallpaper has stripes or a geometric pattern, it's better to cover that edge with trim instead. Leave the back roof panel off for now; it doesn’t need wallpaper since it won’t be visible. You need to finish installing attic windows before putting that panel on.
I noticed that one of the front attic windows is set further back than I realized. It can still be completed now, but it would have been easier before adding the roof panels—keep that in mind if you want to do it earlier next time. Now I need to let this roof dry overnight.
