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concrete garage floor edge crumbling

Posted by babycutecute (My Page) on
Mon, Jul 15, 13 at 13:34

I noticed that the edge of my garage is crumbling. It's brownish horizontal along the edge. I poked around and it's soft.

Please help!

Follow-Up Postings:

RE: concrete garage floor edge crumbling

Looks like moisture.
What's the adjacent grade?

RE: concrete garage floor edge crumbling

Thanks snoonyb. I don't know what adjacent grade mean though.

The house is on a crawl space about 3 feet above ground? The other side of that wall is the living room.


RE: concrete garage floor edge crumbling

Adjacent grade generally refers to areas of a lot which intersects the structure, such as planters, landscaping, hillsides etc.
In your case where your house is on a raised foundation I'll assume that the garage slab is lower than the house floor, so there may be a roof leak where the garage roof intersects the house, which may not be evident in the house, just in the garage.

When you pose a problem, asking a probable solution, tell the whole story.
We are not mind readers and few of us have been to your house.

RE: concrete garage floor edge crumbling

Is the concrete crumbling or are you seeing the expansion joint?

Is there a black paper like substance around the edge?

RE: concrete garage floor edge crumbling

I really don't know. I tried poking and its gluey.

I don't think I saw black paper around the edge.


RE: concrete garage floor edge crumbling

How far away from the edge is the "soft" spot?

Poke an inch away. If it's solid I think you're find.

From the picture it looks to me to be the expansion joint.

And gluey sounds like the tar paper like substance it's made of.

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