Skip to main content
5 votes

Flooding In New Construction Building

Water infiltration can come from 1) subsurface water, and 2) surface water. Subsurface water can come from a rising water table or from hydrostatic water rising up through the soil. Rising Water ...
Lee Sam's user avatar
  • 23.3k
4 votes

How to tile over cinder block holes?

Instead of tile, consider 9/16"-ish thin brick veneer, which looks good in combination with concrete block. Something like this: You could put a wire lath over the blocks, and then just use mortar ...
alfreema's user avatar
  • 699
4 votes

what is the correct procedure to patch up cinder block hole with plumbing?

You need to make sure that you can have access to the space in case you need to address any issues with the plumbing in the future. ( especially since you have a fernco type rubber fitting installed. )...
Alaska Man's user avatar
  • 13.6k
3 votes

How is my house's foundation constructed?

Wild guess (without photos): 6" concrete block structure (common for residential foundations--4" is mostly used for a shorty garage wall base and cases where actual brick ledges are present) ~1" thin ...
isherwood's user avatar
  • 139k
3 votes
Accepted

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

Would this be in an area that snows or could get cold. It's not a coal chute as most of those were not under the front door. My thinking is this - Warmer air from the cellar escapes and keeps the area ...
user1946891's user avatar
3 votes
Accepted

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

There should be a steel plate over that notched stud /joist to prevent the wire from being damaged when sheet rock is installed as it is less than 1-1/4" from the nailing surface. The single gang box ...
Ed Beal's user avatar
  • 103k
3 votes

Temporary Coverage for Sand Driveway

6'' 11 Gauge HEAVY-DUTY U-Shaped Garden Staples
herb guy's user avatar
  • 366
3 votes
Accepted

Cinder Block Foundation - Excessive Moisture

The problem is obvious from the picture. The water sheds down that hill right where the house is. There is a house near me that is at the base of a hill and it floods regularly even though mine does ...
Tyler Durden's user avatar
  • 6,889
3 votes

How can I drill into cinder blocks and attack brackets?

In my humble opinion, you've got two choices using those brackets in cinder block. You can use 1/4" toggle bolts if you drill in the hollow section of the block or 1/4 or 5/16" lag bolts with lead ...
JACK's user avatar
  • 81.7k
3 votes
Accepted

Do small holes significantly weaken the integrity of cinder block?

A few small holes won't weaken a block. A line of ten or twenty holes will. Off hand would say you have concrete blocks and they should have two large openings, one on each side of the centre(four ...
crip659's user avatar
  • 25.1k
3 votes

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

I think you’d be fine mounting with long tapcons through the drywall and strapping and into the block. I don’t have the numbers at my fingertips, but 8 screws (even if a couple aren’t great for some ...
Aloysius Defenestrate's user avatar
3 votes
Accepted

Applying mortar to cinder block foundation to repair surface damage

Use surface bonding cement rather than plain mortar and your parging will do a bit more for you at basically the same cost and effort. Your wall shows water (and freezing/spalling) damage. That ...
Ecnerwal's user avatar
  • 218k
2 votes

Sealing foundation blocks and gap between drywall

For the exact reason you touched upon you don't want to bring those two components together. The drywall will leach water from the concrete, breaking it down and creating stains. Instead, finish ...
isherwood's user avatar
  • 139k
2 votes

Can I attach a freestanding deck to concrete block garage wall?

The fact is that your deck's weight load must be carried underneath it and not using the cinder blocks supporting your garage. That does not limit you from attaching it to the garage to provide ...
DMoore's user avatar
  • 49.1k
2 votes

Possible to repair this retaining wall?

You will need to either replace the wall or build another new wall behind the original, thus rendering the old wall obsolete. Also there is a lot more to it than that, but this is the simplest way to ...
Jack's user avatar
  • 35.5k
2 votes

How to lay concrete block without squishing all the mortar?

Brick laying is an art form. It takes a lot of time to get the technique down. Professional masons make the process look much easier than it really is. One thing that can help is to buy a pre-mixed ...
Jason Hutchinson's user avatar
2 votes

Need help with attaching wood to cinder block

Use a hammer drill with a 5/32" masonry drill bit to install 3/16" Tapcon phillips concrete anchors that are 1-3/4" long. The phillips head should countersink itself flush as you drive it into the ...
Dotes's user avatar
  • 4,819
2 votes
Accepted

Can I safely mount a wall-mount networking rack on one stud?

I'd say it all hinges on whether 2x4s are mounted to the wall securely, and you have no simple way to verify that. In any case, since they do not extend all the way to the floor, they are not ...
haimg's user avatar
  • 1,193
2 votes
Accepted

Hanging exercise equipment on cinderblock wall

Based on your information I would have to go with toggle bolts. C-90 Hollow Block (1 1/2-inch wall) An anchor sized at 1/8 inches can take 310 pounds, at 3/16 inches it can take 700 pounds, and a 1/4-...
JACK's user avatar
  • 81.7k
2 votes
Accepted

Basement wall cinderblock gap fill

They're not intentionally left open. Masons apply mortar to the two faces of the block and typically there's a gap left in between. It would be difficult to get the joints completely full without ...
isherwood's user avatar
  • 139k
2 votes

what is the correct procedure to patch up cinder block hole with plumbing?

I would make the repair in three steps. Before doing the repair to the cinder block. Wrap the pipes with something, like form pads using zip ties or duct tape. Make about ½- 1” layer. Purpose is ...
Programmer66's user avatar
  • 2,742
2 votes
Accepted

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

"Best" is what you can do in that tight space. If the cavity is filled with masonry it's probably fine. Ideally you'd replace the block with a like block and tuck-point the mortar in place. ...
isherwood's user avatar
  • 139k
2 votes

Footing required for a low garden wall?

How fast would you like it to crack? Drystack walls without mortared joints are somewhat tolerant of frost movement. Many landscaping wall block systems intended to perform that wall function are out ...
Ecnerwal's user avatar
  • 218k
2 votes

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

Those look like 1x2 or 1x4 board rather than 2x4. I honestly wouldn't depend on them for strength. If it were me, I would use the Tapcons to either mount a sheet of 3/4" plywood or a couple of ...
KMJ's user avatar
  • 11.8k
2 votes
Accepted

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

"keyhole hangers" will attach wood to nail heads
Jasen's user avatar
  • 21.5k
1 vote

What would cause concrete blocks in a foundation to disintegrate?

I think the blocks were laid on there sides, possibly a small area for drainage. I know of no critter that eats concrete cinderblocks, hopefully it’s only a small area and if it is drainage may be the ...
Ed Beal's user avatar
  • 103k
1 vote

Mounting pull up bar on cinder block wall

I would use 3/8 toggle bolts. At 50 inches, you should be able to hit the hollow part of the blocks. If they aren't hollow, then great, go with sleeve anchors, which should be fine according to the ...
BrianK's user avatar
  • 5,425
1 vote
Accepted

Mounting pull up bar on cinder block wall

I installed a similar attachment to this in my closet on an exterior block wall. I used 3/8" toggles with 3/8" threaded rod , washers and nuts. I did not use the 8 holes but only the top hole on each ...
JACK's user avatar
  • 81.7k
1 vote

Mounting pull up bar on cinder block wall

The problem can be divided into 3 parts: A) Determine the static pull-out force. B) Determine the dynamic to static force ratio. My gut feel is 2X to 3X, but I have nothing to back it up. C) ...
Mattman944's user avatar
  • 2,189
1 vote
Accepted

Will insulating my attic make a noticeable difference?

Yes it will make a noticeable difference, but I'd be hard-pressed to do that on a place I was renting. With free natural gas, I'd be tempted to get a NG generator and run bigger A/Cs. I'm surprised ...
peinal's user avatar
  • 1,271

Only top scored, non community-wiki answers of a minimum length are eligible