Or you can fill the cracks with a vinyl concrete patching compound applied and smoothed with a putty knife.
Can you repair a concrete ceiling.
Then spray on two to three light coats of good bye cracks.
If the damage is greater than 1 3 of the depth steel bars may need to be installed and a full depth restoration may be required.
When the spalling damage is shallower than 1 3 of the concrete s thickness the concrete usually can receive a surface repair.
Something in the support structure or in the concrete itself is failing.
Keep the area well ventilated.
The concrete or support structure are beginning to fail.
Start by cleaning loose material out of the crack and fill it with joint compound.
The repair compound will have pushed up a little so you ll need a coarse grade sandpaper designed for metal or concrete to smooth the surface for painting or sealing.
The soil can set causing the foundation to shift and concrete ceiling crack repair becomes necessary.
If the repair is inside a finished space recoat or paint the ceiling where the repair was done.
Remove any loose debris from the crack and surrounding area with a wire brush and broom.
Cracks or damage to concrete ceilings indicate a problem.
Ordinary cement won t work because as it dries it shrinks.
It forms an elastic film that stretches and contracts along with the crack.
New materials are durable strong expand as they dry and create a permanent repair.
New types of materials help repair concrete ceilings.
Sand over the top of the repair to blend it into the ceiling.
Wear gloves when handling epoxy based repair compound.