Hi,
I'm refinishing my basement floor and I'd like some advice on my approach.
It's an old house so the floor is not all leveled. Also, it's pretty cold during winter and I decided to go with 1" Dow Styrofoam, then 5/8 plywood.
Because it's not leveled I'm faced with two problems:
First, it seems to me that the styrofoam on top of the slab would not git any place for air to circulate in case of condensation or humidity coming up. So I thought of the Delta FL to give 5/16 air gap then put the styrofoam on top.
It brings me to my second problem: would the Delta plus styrofoam, plus plywood be a good approach?
I read the manufacturer instructions, all I could find was that I could not have load bering walls on top of Delta. I cannot find anything about Delta + styrofoam.
Any advice is much appreciated.
Thanks
Using the delta is the way to go ,
Then the styrofoam, then the 5/8's Tonge and grove plywood .
If it's a concrete foundation there is no load supporting walls .
Post or telepost and beam is the supporting
With the foundation.
All you protition walls you can float off your plywood
If you want to insulate the floor dont bother with the delta FL, i would go ahead and install this,otherwise you will lose so much height.
https://www.homedepot.ca/en/home/p.1000682999.html?eid=PS_GOOGLE_HD+%7C+E-Comm_E-Comm+%7C+Shopping+%7C+All+Products_All+Products_aud-306143177453:pla-428575194189&gclid=Cj0KCQjwtZzWBRD2ARIsAIPenY04ARInZ_f7f8IByEWYm9zFckzzkQgnJlWvrBZvib2YhQ11lU2mZmMaAiBoEALw_wcB
Thanks Norm and Josh for your replies!
I looked into dricore (7,99 a piece around here in QC) and my approach was based on cost and also on the fact that my floors are not very level. That one, Amdry I didn't know but seems like a very nice product, but the price... thanks for sharing anyway.
Yes, this is a poured concrete wall. So no bearing walls over the Delta.
So I thought that with that I could play a little with shims under the styrofoam or maybe, if needed be, install 1 by furrings on top then shim.
I know it may seem a little overkill but the floor before was on a 2x3 structure so I guess I'd be arriving almost the same height as before, and fortunately head clearance is not that a problem in this basement, we have a little bit over 7' height unfinished.
Thanks so much again for your replies!
Hey, Carl here,
Its a basement floor not level ! get professional ready to poor self leveling concrete, then go to home depot & grab a in floor heating system will come with thermostat & enough wire for your job !!!
Follow directions it's straight forward!! After that set's you can lay tile, laminate carpet.
There is a product called AMDRY it is about $4 sq ft sold in 2 x 4 panels.
Look most od the heat loss is the walls the floor usually stays warm, but this product is d=ideal for what you want to do.
Also since your floor is very uneven you may have to drill in some blue shield screws. or better yet invest in some floor levelling cement and pour it in low areas as you may not need it everywhere.
We just completed 1200 sq ft basement using this technique but built all the necessary walls first. As I said before do a house wrap against the concrete/block walls build the walls 2 X 6 or 2 X 4 and keep away from the concrete then insulate with R32 or better. This is what will keep the basement warm. BTW this 1200 sq ft cost $55,000 finished with drywall poplar trim / baseboards and all new windows plus a 3 piece bathroom / shower.
Hey Carl and Tony,
Thanks very much for your suggestions. I miscalculated the cost by feet o f the Amdry, it really seems like a good approach.
Thanks Guys!
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