How do we repair Leaky Joints in Masonry Walls
Mc Mushongo investment ccWe determine defective joints through which water travels.
We remove mortar from deteriorated joints to a depth of around 1.6cm.
We clean joints with water to remove dust and dirt from both joints and bricks.
When the wall is still damp, but with no visible water, we repoint the joints with suitable mortar.
We Place the mortar tightly into the joint. The mortar should have a stiff consistency to take its place correctly. To reduce shrinkage, wait for 1 hour or more before the application of the mortar into the joints.
After repointing, we keep the masonry in a damp condition for 2 to 3 days. If the bricks are highly absorptive, they may contain a sufficient amount of water to aid materially in curing.
We use grouting when less expensive treatment method is desired, but it is less effective, durable, water-resistant than the repointing technique.
A grout consists of an equal quantity of Portland cement and sand.
We Wet the masonry wall sufficiently, and we apply a thin coating of grout over the joints in the masonry when it is in a damp condition.
As the grout gains heavy cream consistency, scrub it into the joint with a stiff bristle brush, and increase the apparent thickness of the masonry joints.
We remove excess grout from smooth-textured brick with a damp sponge, before the grout hardens.
Care should be taken not to remove grout from between the edges of the brick and the mortar joints.
Call us for renovation if you have this problem in your house.
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