I have a problem with some linoleum that was installed 3 weeks ago. I did the prep work by putting down underlayment of 3/8″ cdx over the existing 3/4” plywood subfloor. This is a raised foundation and the temperature flucuation can be anywhere from 50 degrees fahrenheit to 75 degrees. After the first week I noticed large bubbles (8″x24″) in about 4 different areas. I contacted the flooring contractor thinking it was the linoleum losing contact with the adhesive. We heated the vinyl at a seam and it was still glued to the plywood, but it was the plywood that was seperating. The nail off was done every 6″ on edges and every 12″ in the middle of the sheets. The flooring contractor said that there should have been 1/4″ expansion joints at the edges instead of the 1/8″ that I did. This seems rather large and I was wondering if anyone has experienced this problem before. I’m stuck with the flooring as it is and wanted to know how to prevent this in the future. Thanks in advance, Craig
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Replies
simple...wrong plywood. A/C with the "A" up is what ya wanted. CDX is NOT underlayment material.
Spheramid Enterprises Architectural Woodworks
Repairs, Remodeling, Restorations.
I agree with the cdx being not the normal standard around here. I'd add that I tighten up the nailing schedule quite a bit. The gap is usually filled, so I don't think I'd put the blame on that. 1/4" is pretty wide. What did the subfloor look like b/4 you put down that cdx? Was it dry? and well nailed/glued?
Remodeling Contractor just outside the Glass City.
Quittin' Time
Around here we use a 4x4' sheet of 1/4" underlayment with inked-on symbols where the nails are to be located, which I believe is a 6" square (or at least that's the schedule with which I nail it down.)
The gap excuse is BS, I try to get the sheets as close as possible, then fill the gaps with a leveler, so there are essentially no gaps by the time the flooring goes down. The guy I use for large floors cuts them tight as well. Any gaps will transmit right thru the vinyl, and I gotta believe 1/4" gaps would eventually cause the flooring to seam, crack, and split over time.
Any chance of ripping it up?
We do vinyl floors also. We use AC with no gap. We also fill the gaps with leveler. We use an air stapler to fasten it down with but staple every 6" around the perimeter and 8" in the field. I can't imagine leaving a gap with vinyl as it would surely transfer through. Was it rolled out properly? We use a 65lb. roller. The only floor I have had a bubble in in the last 3 years or so has been my kitchen floor. Tried to lay the kitchen right through to the back porch converted to an office. Different rates of expansion so bubble in the doorway. Knew it would, tried it anyway. (red face( DanT
After spending $3,000 for materials and flooring, ripping it up isn't an option. The place is a rental with tenants moving in on march 1st. The only problem was that it was here in California and the install was done thru "Halfwayhome Depot." They wouldn't do any removal or prep due to the possibility of asbestos in the previous tile. They were also of no help for info on the preparation of the floor, I guess I should have cxame here first. Oh well, hindsight is 20/20- I just wish the installer had assesed the preperation before laying down $1,900 dollars worth of material. Thanks for all the input and I'll post here first before I jump into foreign territory. Craig
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