I just cut through a slab on grade foyer to install some baseboard heating pipes. I found that the 4 to 5 inches of concrete is suspended about another 5 inches above the ground. I’ve run a tape measure into the void and was able to go as far as 20 feet horizontally in some spots.
I spoke to the architect on this remodel and he says to just fill-in about 3 feet on either side of my cut. I think that it should all be pumped to: 1) insure that there will be less chance of future cracking/structural stability ;2) less of a home for insects like carpenter ants and termites to go unnoticed and wreak a stealthy gorilla war on the framing.
Am I being to cautious?
Replies
mud pumping
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I talk politics because I hate to drink alone
Rampside
You need to look in your yellow pages for a mudjacking contractor. I've been a mudjacking contractor for over 20 years, and we do void filling all the time. Having it pumped under pressure will ensure that the floor will not collapse.
I can't tell you how many family room and garage floor slabs I've had to raise 5 to 10 inches and more because they've collapsed due to the base settling.
Jeff
Now you know how it's done, but I believe the answer to your question er, situation, is: that's up to the owner.
Are you he?
If not, I would think you have some form of responsibility since you made the discovery - ethically or otherwise - at least to inform the owner of the condition. Then what he does is his business.