For a foundation wall with exterior insulation either mix can be used but the following condition must be respected.
How to parge a concrete block wall.
Sweep all debris off and away from the.
To ensure the parging mortar will stick to the surface we remove tar paint glue and or other blemishes with a hand grinder.
Cut 1 16 inch deep vertical cracks on the wall every foot or so with the cutting edge of the disk grinder.
It is now cleaning time.
How to parge a block wall.
How to parge concrete walls prep the surface.
Parging must be periodically moistened during the curing period.
Rinse the bucket or wheelbarrow to dampen the sides and bottom.
A metal armature or fibreglass panel must be anchored through the insulation into the foundation cement before applying the parging.
Remove tar paint glue or other blemishes with a hand grinder.
You can find the parging.
Lap over the final part of the wet mortar each time you apply another trowel ful of mortar.
How to parge a block wall 1.
Remove existing mortar drips.
Scoop the mixture onto a flat trowel and spread it onto the base of the wall with upward strokes.
To give the parging mortar something to stick to we cut very small vertical cracks along the surface spacing them about a foot apart from the other.
Start with a small amount and rake the mixture back and forth until the water is absorbed.
Continue parging the foundation until it is covered with an even coat.
Pour the sand and cement into the bucket or wheelbarrow.
Add the appropriate amount of water to the mix according to.
Apply the parging mixture.
Use a trowel to smear the parget material over the surface of the dampened cement blocks.
If you want the mortar to last you need a clean smooth wall to start.
Aim for a thickness of 1 4 inch.
The cement and.