I have used 3 4 tongue and groove plywood for the subfloor.
Lightweight concrete floor on wood subfloor.
Tips on how to protect the floor from water leakage and moisture issues.
It lays down ultra flat.
This includes lightweight wood concrete slab modular lightweight concrete floor system and precast concrete lightweight concrete floor.
If it leaves an indentation it is probably lightweight concrete.
As with on grade concrete sub floors make sure the concrete is clean flat to.
I am exploring concrete floors on the main level over basement to get some mass into the space.
They would be stained and sealed to create the finished floor.
Slump of 4 with shrinking reducing ad mix.
I am researching the use of icf style forms that would allow a free span from wall to wall and eliminate the wood floor structure all together.
Many manufacturers of hardwood floorboards will not honor warranties if the flooring is installed on a lightweight concrete subfloor.
Metal lath stapled over plywood substrate the installation of calcium aluminate cement based self leveling concrete param 5500 along with expanded metal lath for reinforcement is a successful fast track method to convert a plywood subfloor into a beautiful concrete floor.
With some judicious control joints we only had a few cracks.
Duraamen s param 5500 goes on thin in a 3 8 to 1 2 thick application.
The floor is rated to accomodate 1 1 2 of concrete to encase the pex tubing.
Since there are no lightweight concrete contractors in our area we are going to place the concrete ourselves.
Some of these floor systems are modifications of the aforementioned lightweight systems.
An example is lite deck which costs around 3 25 sqft of floor surface for the form.
Other lightweight floor systems.
Draw a nail across the top.
I could call in a contractor to pour gypcrete over the pex at a cost of about 4000.
Find out how concrete floors are installed over a wood sub floor.
Since lightweight concrete is more prone to cracking than traditional concrete it can lead to problems when used with hardwood floors.
For the second story a foamed type of lightweight concrete is being used over plywood for sound absorption between floors.
We had a similar concrete floor with radiant tubing and the wire mesh attached to spacers just floated over the top of the tubing.
Please send us information regarding the proper chemical to use to achieve the proper mix for the lightweight concrete.
When installed correctly your concrete over plywood floor will not permit moisture through will not warp or buckle and will come with all the benefits of concrete in an easy to care for floor.
The concrete was specified to reach 3 500 psi at 28 days with a water cementitious ratio of 0 45 and a max.
Lightweight wood concrete slab.
