I'm in need of some info on this Shingle Method for filling low spots in Sub-floor. My situation is a low spot/valley of approx 5/16 at its deepest, in OSB thats been screwed into concrete. From what I can gather, I'll be using this shingle method to help level the area. Exactly what way are these laid? My low spot lies length ways in the running down the middle of the hall, for approximately 3'. How does one taper the shingles? What should I use the tack same in place? I'm laying a floating floor of 10mm Laminate so am I assume the difference in height in the shingle edge and the subfloor are insignificant? Exactly how flat/level does the sub-floor need to be, taking into account the type of floor I'm using. Any and all advice greatly appreciated.

Corey

You will have to work with it Corey. You want within 1/8" flatness in a 6' radius. I usually use a few staples to hold the shingles in place and lay a layer of felt between if I am building up more than one layer.

Feather out the edges as best you can by staggering.

I don't even fool with using shingles any more underneath a floating floor. I prefer something like Mapei Planipatch and just screed it.

Mapei Planipatch? I've never heard of it but I'll be checking it out. Thanks Jerry!

Corey

Check out http://www.lowes.com/lowes/lkn?action=p ... lpage=none

Yeh, for floating floors, the patching/leveling compounds are best. Now if you were installing a nailed down floor, that's a different matter.

Gary,

I notice that the instructions for Bruce solid hardwood flooring do NOT permit the use of leveling compounds. Is this because the nails break up the leveler?

This thread provides great information!