Check for hollow spots cracks and loose areas.
Lightweight concrete floor on wood subfloor.
For the second story a foamed type of lightweight concrete is being used over plywood for sound absorption between floors.
Many manufacturers of hardwood floorboards will not honor warranties if the flooring is installed on a lightweight concrete subfloor.
With some judicious control joints we only had a few cracks.
Lightweight wood concrete slab.
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.
Find out how concrete floors are installed over a wood sub floor.
Tips on how to protect the floor from water leakage and moisture issues.
This includes lightweight wood concrete slab modular lightweight concrete floor system and precast concrete lightweight concrete floor.
Some of these floor systems are modifications of the aforementioned lightweight systems.
For more on instal.
An example is lite deck which costs around 3 25 sqft of floor surface for the form.
Make sure the concrete is well bonded to the sub floor.
I have used 3 4 tongue and groove plywood for the subfloor.
Since there are no lightweight concrete contractors in our area we are going to place the concrete ourselves.
They would be stained and sealed to create the finished floor.
I could call in a contractor to pour gypcrete over the pex at a cost of about 4000.
The floor is rated to accomodate 1 1 2 of concrete to encase the pex tubing.
Since lightweight concrete is more prone to cracking than traditional concrete it can lead to problems when used with hardwood floors.
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.
It lays down ultra flat.
Please send us information regarding the proper chemical to use to achieve the proper mix for the lightweight concrete.
We had a similar concrete floor with radiant tubing and the wire mesh attached to spacers just floated over the top of the tubing.
Other lightweight floor systems.
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.
The concrete was specified to reach 3 500 psi at 28 days with a water cementitious ratio of 0 45 and a max.
Draw a nail across the top.
Slump of 4 with shrinking reducing ad mix.
I am exploring concrete floors on the main level over basement to get some mass into the space.
