I have a gap between brick framing that holds my microwave oven and oven and the rear dry wall. This is due to house shifting over the years. The former owner filled it will ugly rubbery filler that cracked and fell mostly out. I have removed that and cleaned up the gap. Now the hard part. I want this to look as as aesthetically pleasing as possible as it's in my kitchen. The gap is about 5.5 inches deep before I hit a wood frame that is probably holding the ovens. The width of the gap varies from 1/4 to 1" inch. In a perfect world it would be nice to fill with mortar so it looks like it never separated from the wall. Not sure how they would hold up over time. I guess an alternative would be to fill with something and paint it the wall color so it looks seamless. Due to the ovens being there I am concerned about using any flammable filler. Looking for suggestions on how to make this look it's best. Appreciate your input! Thanks!
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4Sounds like the previous fellow caulked it. He may not have cleaned surfaces properly or may have used the wrong kind of caulk if it separated without additional settling forces. If well done it is not typically an eyesore. More rigid fillers will crack or separate similarly if the building settles more. Another option is to look at the wall and whether you can add a piece of molding to cover the gap, and this could be either very easy or very hard to tie into the wainscoting below. If you can find the same shape molding as the crown of the wainscoting, it looks not too hard.– K HJul 1, 2021 at 3:53
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1I agree with the molding idea. Trying to fill a crack that big and have it hold over time is probably not a long term solution.– SteveShJul 1, 2021 at 13:22
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It appears that there is caulk between the wainscoting and the brick. For consistency purposes, that's what should be done above, too.– FreeManJul 2, 2021 at 13:50
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Caulk will look like caulk (and a lot of it). I'd be tuck-pointing mortar so it looks like it originally did.– isherwoodJul 2, 2021 at 20:03
1 Answer
Use a spray expanding foam filler in the larger gaps then shape the foam so it is slightly recessed. Then use a paintable flexible caulk. Paint it if you want.
The foam will provide a better backing for the caulk.
Hopefully the drywall edges are all supported. If any of those gaps is just a layer of drywall with a large void behind that not even expanding foam can reasonably fill, you may need to repair that .
The brick should not be getting hot. Not at all. If it's getting so hot you think it might ignite things, stop using the oven immediately. Figure out what's wrong. For reference it is normal to install wall ovens in painted wood cabinets without expecting any heat damage to the wood or even the paint.
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1Instead of wasting can after can of spray foam filling a 5" deep gap, I'd suggest simply using foam backer rod. My local big-box store sells it in 3/4" diameter, and I'm sure that with a small additional amount of effort, one could also find it in 1" diameter. Wedge some of that in then caulk over the surface. Otherwise, I believe this is exactly the right answer - +1.– FreeManJul 2, 2021 at 13:52