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4
votes
1answer
607 views

How do I repair aerated autoclaved concrete?

I got an everlasting problem with a aerated autoclaved concrete (also known as "Gasbeton") wall: there's a crack that seems to split the upper half from the bottom half of the wall. I tried several ...
4
votes
3answers
4k views

Contractor suggests caulking cracks in chimney, is that the right solution?

The mortar in our 25-year-old chimney is starting to crack and now leaks into our home if it rains hard. I assume we're probably in need of repointing, but a contractor that has done roof work for us ...
0
votes
1answer
213 views

What is the best removable insulation material?

There is a crack in a wall that I would like to fill with some removable insulation. It must be removable, as such it should just be a temporary solution. I know of rockwool and glasswool, but don't ...
1
vote
1answer
670 views

Fill a crack in the granite countertop

I have granite countertops in the kitchen. Recently I noticed there was a very think crack right where 2 slabs join each other. It is about 2 in away from the edge of the slab. I'm looking for a ...
6
votes
1answer
4k views

How can I tell if I have rock or wood lath plaster, and is there a difference when repairing cracks and peeling/flaking?

My wife and I are repainting our attic and aren't sure how best to proceed with fixing the wall cracks. We have several different kinds of problems: long parallel cracks set a couple feet apart, and ...
1
vote
1answer
410 views

What causes a glass block to crack? Does it cause any structural damage?

I just found that there is a crack in one of my glass blocks. I noticed that it seems to have water inside. What is the likely cause of this, and how can I repair it? Should I be worried about ...
1
vote
2answers
13k views

What is the best product for repairing expanding gaps in a brick wall?

I am trying to do a structural repair to a brick wall that has some large gaps - 1-3" between some of the bricks due to some foundation movement over the last 300 years. The gaps are essentially ...
3
votes
2answers
3k views

When do plaster cracks get bad enough to have an expert look at them

Jumping off from Plaster cracks beneath window sills question, and the calm/collected answers therein. When (if ever) should I be concerned about the absolute number of cracks around doors and ...
2
votes
2answers
2k views

Concrete slab at a brick wall

I want to build a concrete slab (upon which a deck will be build later) at the foot of a brick wall (by foot I don't mean the foundation foot, I just mean where the brick meets the grade level). I ...
1
vote
1answer
596 views

Sealing a small crack in poured concrete foundation

I have a small crack in my foundation that started seeping water when there was ice on the ground. The water is flowing along the foundation under my fireplace bump out. The cause of the problem ...
1
vote
1answer
623 views

What type of mortar would I use to seal cracks in our chimney?

We've got a brick chimney that's ~25 years old and it's got a quite a few cracks in the mortar (some hairline, some as thick is a quarter). What's the best way to seal all those cracks? I assume ...
3
votes
2answers
13k views

What's the best method and product to use for patching cracks in plaster walls?

I have a 100+ year old house and while it's quite structurally sound there's been some settling over the years, leading to small cracks in the old plaster around the house. I hired a professional to ...
6
votes
2answers
9k views

How do I fill a hole under a sidewalk?

The sidewalk leading up to my front door developed what looked like a sink hole under it about a year ago. Since then, an animal of some kind has made the hole even bigger and it now runs as a tunnel ...
4
votes
3answers
219 views

Where do I begin finding estimates for problems with my potential first home?

I'm looking at purchasing an older home as a primary dwelling. On going through the house with an experienced Realtor and several experienced DIY people for reference (but not a home inspector or ...
5
votes
1answer
3k views

What's the best approach to repair a wedge/corner crack in my foundation?

I've got a wedge/corner crack on one corner of my foundation. I'll try to post a picture of it as soon as I can, but here's a sample image of what I'm talking about: However, my crack is more ...
4
votes
1answer
327 views

Crack spanning several tiles

I've got several tiles in my dining room that have a diagonal crack running across them. Since it's a pretty straight line across several tiles, I'm guessing it's a foundation issue. The room is at ...