Tape a one foot by one foot square of plastic sheeting plastic kitchen wrap will do to the concrete wall in your basement with duct tape and leave it in place for 24 hours.
How to do a board finish concrete wall.
Using a board that is longer than your pour is wide and using a sawing motion work back and forth until the concrete is level.
After thoroughly mixing the concrete pour it into the forms slightly overfilling them.
Then take a straight board a 2x4 piece of lumber works great as long as it isn t bowed and simply level off the concrete.
Five on forming and five on pouring.
Trowel a 3 8 inch layer of concrete over the wall with a straight trowel.
See more on how to insulate basement rim joists phil places his blocks 2 ft.
Apart so they work as drywall backers too.
Step 1 prepare the area before you start working on the surface of the walls trim back any vegetation around the base of the boards as much as possible.
Screw or nail one side of the block through the joist and secure the other side to the sill plate.
The architecture of board formed concrete is an art form here are 10 tips that can help you do it right.
Use treated lumber if the brace will come in direct contact with bare concrete.
Allow the concrete to dry for approximately 30 minutes until most of the moisture is gone from the top.
Drag the flat of the trowel straight across the surface of the concrete to smooth it.
Our crew places the concrete in 2 foot lifts working all the way across the wall before moving on to the next lift.
Spray the wall with a light mist of water.
You want to be able to reach all the way to the bottom of the form and place the concrete in lifts before pulling the pipe up and pouring another lift.
Wet the pointing trowel and hold it upside down as you scoop the mortar loading up its lower side.
Step 2 prepare the board.
On pour day we pump the concrete through a steel wall pipe.
Then remove the tape.
Start at the bottom corner of one wall and in a single.
When you want board formed concrete you take that same plywood formwork and you add an additional layer of wood to the inside faces so that the wet concrete takes on this new pattern.