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Insulate cinder block wall

The exterior walls of the first floor of our house are cinder block with brick on the outside. The inside of the wall was painted black (not sure what that is) with furling strips then sheet rock. ...
tnknepp's user avatar
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2 answers
39 views

Spacing between shelf brackets for 1/4 inch plywood and light load

I want to put up a track around the ceiling of my basement for the cats to run around on. Looking at the scrap I have available I believe I have more than enough 1/4" plywood (dunno what kind of ...
THill3's user avatar
  • 139
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0 answers
41 views

Black iron gas pipe penetrating cinder block wall above grade - sleeving requirements

I'm upgrading my propane lines inside the house and plan on having a 1" black iron pipe stub out from the basement cinder block wall (2ft above grade). I'm having a hard time finding a conclusive ...
Yev's user avatar
  • 247
0 votes
2 answers
74 views

Best way to patch 8" square through hole in cinder block wall [duplicate]

I currently have a tankless hot water heater power vent running through a square 8" x 8" penetration in a hollow cinder block wall. I'm going to be replacing the water heater with another ...
Yev's user avatar
  • 247
0 votes
1 answer
38 views

How would you design a code legal guard railing on a raised block deck that also has a 22" high block bench that runs along the deck perimeter? [closed]

In December a contractor built a raised masonry block deck with a wall/bench on top. I didn't plan the job well, so now I'm planning for 37' of guardrail. I would prefer the guardrail didn't hide ...
PierreDelecto's user avatar
0 votes
1 answer
73 views

How do I repair a sewage leak in a wall?

My kitchen sink sewage pipe has a leak behind the cinder block wall. Couldn't get a clear picture of the exact leaking spot, but it's at least several inches inside. I'm trying to find a plumber, but ...
qweruiop's user avatar
  • 155
0 votes
1 answer
77 views

Are these block foundation cracks problematic? [closed]

What steps should I take to address these cracks and how problematic are they? I am hoping to insulate and finish this exterior wall.
cmarker's user avatar
  • 43
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0 answers
97 views

What are my basement walls poured concrete or cinder block? (Pics inside)

Trying to figure out what kind of basement walls I have. Vertical seams are visible and corners are rounded. Poured concrete? Cinder block? Something else?
bypass_override's user avatar
0 votes
2 answers
66 views

How should I solve/approach the cracks in my garage's cinderblock walls?

I just bought a property with a detached garage and it looks to have cracks in the walls. It has no drainage on the roof, which is probably causing settling issues. I plan to add gutters to the garage,...
John Matok's user avatar
0 votes
0 answers
23 views

What kind of insulation to use against cinderblock after repair?

I needed to replace an old outside spigot, and to get proper access to the pipe inside the walls, I had to remove a lot of old and very crumbly insulation. I'm not sure what kind of insulation it is, ...
Neil Steiner's user avatar
1 vote
1 answer
137 views

Do I need to remove mold stains before applying foundation waterproofer?

We moved in to a house two years ago that had a crawl space dug out and turned into an unfinished basement area several years prior (>10?). I was hoping to turn it into a home brewing room (...
pete's user avatar
  • 11
3 votes
3 answers
705 views

Attaching ledger board to brick and block wall?

I'm building an enclosed 1 floor addition on the side of our house which will extend our side entry to become a mudroom and provide for a pantry off our kitchen. We need the space under the addition ...
Dave's user avatar
  • 31
-1 votes
1 answer
194 views

Poured Concrete, blocks or something else for single detached step

Good Afternoon, I am redoing a patio at the front of our home and need some advice on how to handle a single step up to the existing front patio. Techo-Bloc calls for a pre-existing concrete step to ...
Russ W.'s user avatar
  • 33
0 votes
1 answer
756 views

How would you fill this gap between a garage slab and a foundation wall?

This is in my garage so it doesn't have to be the most perfect solution, but I'd like to do something about this ugly gap between the cinderblock wall and concrete slab. What would you use to fill ...
Sherman418's user avatar
2 votes
1 answer
41 views

Cinderblock cmu masonry question

I'm replacing a 7ft. Basement Wall with 10" block. We tried to demo carefully as to save some interlocking blocks in the corners. A few broke resulting in a few cuts having to be made. My ...
JohnInNY's user avatar
0 votes
1 answer
75 views

How to attach cat shelves to cement wall that already has nail heads

Whoever owned my home before me put some nails in the mortar between what look like cinderblocks of some kind in my basement. Hence they're stuck pretty securely. I expect they could hold a lot of ...
THill3's user avatar
  • 139
1 vote
1 answer
4k views

Applying mortar to cinder block foundation to repair surface damage

I have a cinder block foundation, and near the floor in my garage the parging has flaked off excessively, revealing cinder blocks with a poor surface. My thought is to clean off any remaining parging ...
Matthew's user avatar
  • 211
1 vote
1 answer
467 views

Covering/Blocking Gap Between Wood Wall And Foundation Block in Garage

I have a 24'x30' garage with an on-grade block foundation that I plan on finishing to use as an office/workshop of sorts. Before I start putting in insulation and drywall, I want to attempt to seal ...
David Byrd's user avatar
1 vote
0 answers
102 views

How to waterproof walk out basement

My mother's house is built on top of a hill that drops off at the rear. The front half of house is over a tall crawl space, the back half is an 8' high finished walk out basement with drywall and has ...
EmmaSurf's user avatar
2 votes
2 answers
204 views

Is it safe to anchor a pull-up bar through drywall, into a broad-side 2x4 attached to cinderblock using concrete bolts/screws?

I'm wanting to mount a pull-up bar that needs 48" OC spacing to the exterior basement wall. However, it has drywall attached with broad-side 2x4's (rather than on edge), which is attached to ...
Shunsuke Sengoku's user avatar
2 votes
1 answer
1k views

Can I attach tongue and groove wood paneling (or similar) directly to foam over concrete block?

I am currently working in the cinder block basement of a small cabin in a climate with very cold winters. The convective cold from the cinder block walls in the winter is quite chilly. I want to ...
absentx's user avatar
  • 31
0 votes
0 answers
225 views

Is drilling a hole in a wet hollow (cinder? cement?) block wall a terrible idea?

I have a wet basement wall. I am working on hiring someone to regrade and possibly install an external French drain, but in the meantime.. Would it be a terrible idea for me to drill a 1/2" hole ...
negacao's user avatar
  • 860
2 votes
1 answer
746 views

Do small holes significantly weaken the integrity of cinder block?

I put a wall mounter server rack directly on my basement wall (hollow cinder blocks). This is an interior wall, e.g. second basement on other side, no dirt. I mounted it using 1/4" x 3" ...
negacao's user avatar
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0 votes
0 answers
379 views

Is best practice to discharge sump through cinder blocks closer to ground, or through wood plate higher above ground?

I have a sump pump that needs to discharge outside. Next to the sump is maybe 9ft of cinder blocks for the basement wall, but in this side of the basement, ground-level is just 4ft higher elevation ...
cr0's user avatar
  • 1,439
0 votes
2 answers
308 views

Best way to create and attach an outdoor kitchen wall to a cinder block wall/fence

I have an area that is designated to be an outdoor kitchen along our cinder block fence. The length is 15.5 feet and the height will be a little shorter than 8ft. The wall itself is nearly 6ft. So I'm ...
Adrien's user avatar
  • 721
0 votes
1 answer
3k views

Recommended sleeve anchor length for block wall (hollow blocks)

Am attaching a window well to the outside foundation wall. Foundation is built with blocks (hollow). I have some 3/8 x 3" sleeve anchors but considering the block is hollow it made me wonder: is ...
thornomad's user avatar
  • 127
0 votes
3 answers
2k views

What causes this odd pattern in the paint on a block foundation wall?

My basement is having some water issues. I am working to resolve that, but in the meanwhile: can you guess what is causing this pattern in the painted cinder blocks near the bottom right corner (some ...
negacao's user avatar
  • 860
3 votes
0 answers
627 views

Drilling holes in crawl space block foundation

I did a crawl space encapsulation myself. I used foundation pins to secure the vapor barrier to the walls every 16". Unfortunately, my walls were so wet I couldn't use a butyl tape like the ...
Eric's user avatar
  • 234
0 votes
1 answer
1k views

How to seal this gap where the original house meets the addition?

Some form of squirrel or chipmunk has been hanging out in my basement. The exterminator placed some glue traps on the ridge formed by the cinder (cement?) blocks, and the critter got into them. He was ...
negacao's user avatar
  • 860
0 votes
1 answer
33 views

What is N/mm² in block characteristics?

In brick/block datasheet I found strength parameter in N/mm². Does it mean how much weight can a brick hold? So, for example 10 N/mm² of 10x10cm brick could hold 100.000N ~ 10 tons? Is this correct? ...
Ri Di's user avatar
  • 101
0 votes
2 answers
5k views

Mold on below grade garage block walls

I have a below grade 2 car internal garage.  Basically the house is built into a slope that rises toward the back yard with the garage doors on the front of the house.  So the rear wall is completely ...
Greenyone's user avatar
1 vote
0 answers
36 views

How to estimate how much mason mix I need for a wall?

I am building a wall using Quikrete Mason Mix Type S 60 lb (as I think that is the correct product for gluing bricks together to form a wall). The wall will in total have use 400 cinder blocks, ...
Village's user avatar
  • 1,045
0 votes
1 answer
2k views

Footing required for a low garden wall?

Location is Northern New Jersey. I'm looking to build a low garden wall; approx. 18 inches high. Current plan is cinder block faced with thin brick and capped with real brick. It isn't a true ...
masedesign's user avatar
0 votes
1 answer
732 views

Does electrical conduit in a cinderblock wall need to be covered before being plastered over?

I have a receptacle in my kitchen cinder block wall and have chiseled a channel in the cider block for the Romex™ but I think the Romex™ needs to be in conduit like in this picture. https://www....
john's user avatar
  • 111
0 votes
1 answer
465 views

Will repointing solve water leakage issue?

I have a detached garage that is getting water leakage through the back wall. There are no leaks coming from the roof, in fact the roof was replaced within the last year. The walls of the garage are ...
ThisOldGarage2's user avatar
1 vote
2 answers
6k views

Correct way to fix a broken block in a cinder block foundation

I have a 1954 built house with a cinder block crawlspace foundation with about a 1 1/2 foot clearance. I can squeeze in, but not easily. I'm in Cleveland, OH, so there is definitely a freeze-thaw ...
Eli's user avatar
  • 135
0 votes
0 answers
245 views

West wall of house in Phoenix is cinder block with no insulation. How can I insulate it?

A north/south situated single level townhome in Phoenix has a west facing wall that bakes in the summer heat. It's about 10' tall. The interior walls are 8'. Both bedrooms and bathrooms are ...
Jon Griffith's user avatar
1 vote
3 answers
9k views

How should I patch up cinder block hole with plumbing?

(followup question to Why is this Ptrap installed in this location?) Here is the hole that I want to patch up: As you can see, it is a cinder block wall with concrete foundation with a new PVC drain ...
yigal's user avatar
  • 175
0 votes
2 answers
1k views

How can I drill into cinder blocks and attack brackets?

I want to affix some shelves to some cinder block walls. The shelves would be 3000 x 400mm. I have been eyeing up these brackets as supports. The shelves will be to hold power tools and toolboxes and ...
clumsyjedi's user avatar
1 vote
2 answers
125 views

How is my house's foundation constructed?

I would have thought I'd be able to do an image search for help figuring this out, but so far I've been unable to put together a set of keywords that looks like my situation. I have a two-story house ...
smitelli's user avatar
  • 621
1 vote
1 answer
2k views

What would cause concrete blocks in a foundation to disintegrate?

I had to dig out my foundation last summer because of water issues in the basement. No surprise that the drain pipes were completely clogged with a thick mat of tiny roots and mud. I was however very ...
peinal's user avatar
  • 1,271
2 votes
4 answers
5k views

Mounting pull up bar on cinder block wall

So, I've read through a bunch of stuff online for mounting a pull up bar to a cinder block wall and before I go out and rent a hammer drill I want to see what would be the best anchor system for my ...
Dakcenturi's user avatar
1 vote
1 answer
161 views

Will insulating my attic make a noticeable difference?

I'm renting a house that was never originally intended to be occupied full-time. The house is of a cinder block type construction with no insulation in or on the blocks. The attic has some insulation, ...
Ramrod's user avatar
  • 284
1 vote
0 answers
580 views

Why is there a large walled off space in the middle of my basement?

I just moved in a couple months back and noticed that this wall was a lot thicker than expected, lots of unaccounted for space. I was honestly expecting to find a body in there :P glad I didn't! ...
jpx's user avatar
  • 137
1 vote
1 answer
1k views

Hanging exercise equipment on cinderblock wall

I live in a townhouse and am separated from my neighbors by a cinderblock wall. In my garage it is pretty exposed. I would like to hang a kayak, punching bag and pull up bar off of the wall. Kayak ...
Quillion's user avatar
  • 147
5 votes
1 answer
769 views

What is this panel in basement wall of 1940s house?

When I removed a cabinet from our basement wall today I discovered the panel in the photo below. The panel is metal, approximately 2 ft wide and 1 ft high. It has five 1.5 inch holes in it, each one ...
Halo79's user avatar
  • 83
0 votes
2 answers
68 views

What type of exterior coating will allow water vapor to pass through cinder block?

I was asked to paint an exterior of a cinder block chimney and need to find out what type of exterior coating will allow water vapor pass through the block so that it doesn't ruin it from the inside ...
jeanne's user avatar
  • 1
1 vote
2 answers
1k views

What is my 3/8" concrete drill bit hitting in the basement wall and not penetrating when I try to mount a TV?

I have a 48" flat screen TV that I'm trying to mount into a pre-assembled then-installed permanent basement shelves. It appears that the back wall of the shelves was glued onto the cinder blocks. ...
U-Stuff's user avatar
  • 11
8 votes
1 answer
320 views

Flooding In New Construction Building

This weekend, water was observed flowing up, through the floor and through other joints, into the building - making a swimming pool we didn't ask for! Some Background We currently have a project ...
losthorse's user avatar
  • 181
0 votes
1 answer
865 views

Closing in a window opening on a cinderblock wall

I am having a window closed in, on a cinderblock wall. My contractor laid mortar horizontally when he put up the wall. But he left gaps on all the vertical sides of the cinderblocks. When I questioned ...
Katrina's user avatar