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Flooring and Carpeting/finding low spots on a slab


hi Chris - I watched the videos that show putting a skim coat on a slab.

It gets tricky when you start looking at flatness from different directions. It seems hard to tell what may be too high making other spots look too low.

If there are bigger "low-spots" than a skim will handle, is there a good way to "map" them out, like with a pencil so you know where to go thicker when you apply with trowel?


Hi Rob

Lay the straight edge down...fill with material to the desired height to eliminate any light underneath. If you are able to work like this you can do all of the area wet. If not allow 1 or2 mounds to dry and then use those as your level/guide...and work from that. Many times we just use the straight edge to pull the material and just touch up with the trowel

This site is not smart phone friendly....I'll be in touch


Yes you can mark all the low spots with a marker...we do it all the time. L FOR LOW with a line from one end to the other end of the low area. High spots are marked with a circle and an H inside that circle

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20+ years flooring installation ...carpet,wood,tile and vinyl. Residential and commercial. I do not sell the products , just install what ever the shop / customer has purchased. I actually love seeing the finished project completed and it gives me great satisfaction to help others acheive that goal. If I don't know the answer I will say so, and then I will recommend another expert for you. I may even research the subject and answer to the best of my ability ...including links to my sources. I wish you all success Chris


20 years as an independant contractor

H.S. diploma A.S. agriculture Mt San Antonio JR. College

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