1 wash down the concrete wall with a pressure washer to get rid of dirt debris and oil stains.
How to finish concrete walls interior.
An unused basement is a huge wasted space.
Tip up the walls.
Concrete walls have a tendency to absorb water i e.
Covering up these blocks will greatly improve the aesthetics of your interior living space.
If you have unfinished basement walls but want to use the room for a living area you can improve the aesthetic by finishing the walls.
If concrete is applied to a wall incorrectly the first time it can feel rough or uneven.
If you are finishing a basement or if you live in a house that is built entirely of concrete blocks you may be faced with the unsightly presence of an interior wall made of exposed concrete blocks.
They are slightly porous.
If the floor joists are sagging or there s ductwork in the way you may have to lift the top of the wall in first and slide the bottom plate into place.
Tip a wall up with the bottom plate against the wall.
Sanding the wall can often take care of the problem but it is difficult to sand a very large surface smooth and you might end up with places that are recessed while others are higher making the wall look worse than before.
If the floor joists are sagging or there s ductwork in the way you may have to lift the top of the wall in first and slide the bottom plate into place.
Before you apply your finish repair any damage to the wall and remove any items that may get in the way.
Poor wall finishing leads to moisture seepage spoiling the paint on the concrete walls and compromises the wall s strength.