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1answer
51 views

Possible to repair this retaining wall?

My wife and I are replacing the deck at the back of our house, and after we demolished the existing structure found the retaining walls near our basement door have moved significantly. These are ...
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1answer
49 views

Cinder block retaining wall repair

I inherited an old retaining wall (from the 1980s? repaired once or twice here and there): It has a few cracks and the mortar has gone bad so I'd like to repair it. So I removed the cinder caps, ...
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1answer
37 views

What to do with cinder block holes made for electrical boxes?

The previous owners (flippers) left a surprise behind the drywall in my basement, and it was not just the absence of insulation. What is the best way to work with these holes? I want to replace the ...
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1answer
67 views

How to tile over cinder block holes?

I bought a house that has cinder block wall in the backyard. Whoever installed this wall opted to place the top blocks so that the holes are facing the side rather than the top and bottom. They then ...
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0answers
33 views

Load-Bearing (?) Cinder Blocks Half-Corroded Away

In preparation for patching and repairs, I knocked down all the loose material from an old, water-damaged wall. In the process, I discovered an area where a couple of the cinder blocks underneath the ...
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1answer
91 views

How to lay concrete block without squishing all the mortar?

I'm laying a small retaining wall for a garden and I'm having a lot if trouble getting a proper mortar joint. If it is on the soft side it is squished out of the joint with the weight of the block. ...
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3answers
202 views

Pros and cons of painting cinder block in basement?

I have owned my house for 5 years. The outside wall of the laundry room in the basement is unfinished cinderblock. The cinderblock wall looks a bit unsightly, with dabs of paint, and the rough ...
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2answers
88 views

Should you solid fill a low cinder block wall?

I'm making a raised garden bed that is about 2 cinder blocks high (with 1 extra cinder block below ground as footing) in a square shape 3.6 meter each side. So far I made a footing of 5 cm of ...
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1answer
81 views

open cinder block wall in basement

I am replacing some framing and sheet rock that has been contaminated by mice. The basement has cinder block walls that come up about half way for some reason. The house was built in the 1950s. In ...
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1answer
51 views

Should I add a vapor retarder to an interior cinderblock wall as part of my basement remodel?

I am currently in the process of finishing my basement and I want to know whether, in general, anything should be done to an interior cinderblock wall related to moisture protection. To show what I ...
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2answers
106 views

Can I drywall directly over cinder block (ceiling) using 7/8" hat channel?

We live in a condo that was previously a Hospital. In the early 1980s they installed the drywall ceilings using metal track. We removed the drywall and track to raise the ceiling from 8' to 11'. ...
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3answers
251 views

Copper pipe through cinder block wall: corrosion issue

The pipe in the picture runs from my oil tank through my basement wall and to the outside (guessing it's the vent pipe for when they fill the tank). Should I be concerned about what it going on at ...
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4answers
556 views

How to deaden the noise that bounces from cinderblock wall in backyard?

I have a very large backyard surrounded by a tall cinderblock wall. Not only is it HOT in the summer (NM summers) but the noise that bounces around is bad. Someone walking on the sidewalk next to my ...
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5answers
256 views

Can a regular rasp be used to enlarge a hole in concrete?

I need to enlarge a few holes from 40mm to 50mm in a cinder block wall and in a concrete beam. Chiseling will do much damage and need patching, can I rasp it with a wood rasp?
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0answers
954 views

Is there a way to remove paint from cinderblock walls that is not sand/glassbead-blasting?

The basement in our 1979-era house has cinderblock walls. These walls have a tacky (DryLok perhaps? It's not efflorescence) coating on their surface that looks like a heavy, thick paint. On top of ...
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1answer
202 views

Framing a new basement window in cinder block

We recently purchased a home and this window was boarded up on both sides. I removed the plywood to discover that it used to be a old coal chute. I removed all the old fiberglass insulation that was ...
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0answers
101 views

Fixing bike rack to breezeblock (cinderblock) wall?

I plan to attach at least 2, possibly 4 bike racks like this one to my garage wall. The wall is an exterior one, mostly breezeblock but with 2 brick pillars. I'm unsure if the breezeblocks are the ...
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0answers
101 views

Will installing closed cell spray foam over ventilation for basement French drain significantly affect performance?

Question: Will installing closed cell spray foam over the ventilation for a basement French drain significantly affect the sump pump system's ability to remove water from the basement? Background: I ...
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2answers
129 views

What are the options to increase doorway height in load-bearing portion of foundation wall?

Question: What are the potential options for increasing doorway height in a load-bearing portion of a cinder block foundation wall? Background: I am considering finishing my basement, but there is an ...
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1answer
148 views

Foundation Cinderblock Chipped Repair

I seem to have a fairly large chip in one of my foundation cinderblocks. Is this type of damage repairable as a DIY project?
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3answers
16k views

Retaining wall: footing or no footing?

I'm looking to build a retaining wall on my sloped backyard. I'll be using cinder blocks (with mortar to join them together and rebar for added stability). (added info: at the lowest point the wall ...
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0answers
307 views

How should I secure electrical wire to a cinderblock wall in a crawl space?

I just purchased a house that was built around 1995 and has a cinderblock foundation that is exposed under the deck. There is a detached workshop that is about 100ft from the house that gets its ...
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1answer
497 views

How can I repair a cinder block wall around a sewer line?

After having replaced ~30' of 4" cast iron w PVC, I'm left with two holes in the cinderblock foundation. The holes are the height of 1 block and about 1/2 the width of a block. These leaves a pretty ...
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2answers
402 views

Can I replace a bit of a cinder block wall with wood post to support a deck?

We're in the process of replacing some deck boards, and are wondering if we should replace a section of the cement block wall. We're also not sure what the best way to go about it is. It's apparent ...
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1answer
330 views

Why would cinder blocks be used instead of concrete for a foundation wall?

Saw this video about how to properly lay bricks and dang! It takes more skill and care than I thought. Then I saw a video about how foundations are poured into wooden casts from a big concrete truck ...
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1answer
183 views

Ceiling joists job in a cinder block house

So I have a 25 x 30 square house made of cinder block. Roof is just a gable roof with gables on the ends of the 30ft length. My question is, I know in stick framed houses the ceiling joists act to ...
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3answers
8k views

Can furring strips be installed diretly to a cinderblock wall not in a basement?

I've tried finding a definitive answer but it's far more common for folks to have block walls in basements that need to be furred out, so the information deals primarily with that and I believe this ...
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2answers
7k views

How to adhere drywall to cinder block

I have just purchased a home which I will be renovating prior to moving in. The house was built in 1950 and has cinder block ex/interior walls. I have an area going into the hallway which attaches to ...
3
votes
3answers
10k views

How can I cut a cinder block wall to run large round duct through it?

When an addition was put onto the house that I own, the previous owner just ran the duct work into the crawl space through an old basement window. I want to re-route the duct work by actually cutting ...
3
votes
1answer
3k views

How can I insulate my garage?

My sister's garage gets very cold and very hot as it is not currently insulated. She has the heating/ac unit in there as well as a deep freezer. The attic space directly above the garage has no ...
2
votes
1answer
757 views

How can I mount a projector to a concrete ceiling?

I am in a dorm room and I am attempting to mount my projector and screen in my ceiling... As far as I can tell from just tapping the ceiling it is made of cinderblocks if that sounds right or ...
3
votes
2answers
11k views

What tool would you use to cut through cinder block?

I have a hidden room in my house that I would like to turn into a closet. The room (currently only accessible from the outside through the vent) vents the utility room to the outside. I'm not sure why ...
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2answers
4k views

Building a raised wall for a pond

We are looking to build a small pond (9'x18'x6'), but we want the edge to be raised up about 8". I am thinking about using CMUs (Concrete Masonry Units) which are 8x8x16. The entire pond will be lined ...
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3answers
4k views

What should I do with abandoned cinder blocks?

I recently moved to my first home (with a modest yard). The previous owners left behind about 20 cinder blocks. I'd like to build something constructive with them in lieu of discarding them. Any ...
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2answers
1k views

How to prepare cinder block wall for painting?

I'd like to paint our cinder block wall but wanted to smooth the surface first. What are my options besides installing sheetrock on a wall?
5
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1answer
279 views

Glue crawl space rigid insulation

I've dug a trench around the perimeter of my crawl space. Then I planned the next steps. I took a week off but I'd like to finish this project next weekend. I am going to glue 2" R-10 FOAMULAR 250 ...
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2answers
266 views

What is cinderblock?

I live in the UK and have never heard of cinderblock, what is it?