Brick is one of the most prized exteriors for homes because it's attractive and easy to maintain. Yet over the years, water, heat and seasonal expansion and contraction all attack the solid mass of a brick wall at its well-nigh elastic (and weakest) point: the mortar joints.
Mortar joints deteriorate wherever water can soak them – under windows and walls, around chimneys, behind downpipes, at ground level and at any exposed wall top.
Repairing eroding and cracked mortar joints is chosen pointing, repointing or tuckpointing. Nosotros'll show you the proper tools and techniques to repair and restore cracked and worn-away mortar joints to make them solid, durable and skilful looking. To keep them that way for the long run, you take to end water from getting into your bricks and foundation.
Repointing brick is slow, painstaking work that requires few special skills but a lot of patience. Using the steps we show, you can expect to repoint about ii square metres. of brick work a day. All the same, if you blitz and do careless work on a highly visible expanse, the repointing brickwork will stick out like graffiti. Brick is durable; bad results will bother you for a long time! If yous don't accept repointing brick feel, consider hiring a pro for:
Larger-scale pointing jobs, such as a whole wall that needs repair.
Chimney and wall repair requiring setting upward and moving scaffolding.
Areas with a lot of loose or missing brick requiring rebuilding walls or corners.
Colour-matching new mortar to existing mortar in highly visible areas.
Read on to acquire how to repoint brick.
Tools Required
Angle grinder
Grit mask
Apartment chisel
Hammer
Rubber gloves
Safety glasses
Trowel
Tuckpointing tool
Whisk broom
Materials Required
Mortar mix
Pace ane: Use an bending grinder for larger, harder repointing brick jobs
Family unit HANDYMAN
Cleaning out old mortar joints requires basic tools: hammer, flat utility chisel, safety spectacles, grit mask and whisk broom. Filling the cleaned-out joints requires masonry tools: brick trowel, 10mm pointing trowel, a special tool for contouring the joints and waterproof gloves.
If you practise tackle larger jobs or see hard mortar that can't exist easily chiselled out, nosotros recommend that you lot rent or buy an angle grinder fitted with a diamond bract. Select a grinder with a 115mm blade diameter; larger grinders are harder to control and cut the mortar too deep. To begin, cut grooves 20-25mm deep in cracked or deteriorating mortar using a 115mm angle grinder fitted with a diamond bract. Button the blade into the joint until the grinder head contacts the brick, and make a unmarried laissez passer along the centre of the joints.
Learn how to build and return a brick wall.
Stride 2: Flake out loose mortar
Family HANDYMAN
Break out onetime mortar using a hammer and cold chisel or a flat utility chisel that's narrow enough to fit into the joints. Position a flat utility chisel at the edge of the brick and drive it toward the relief cut to fracture and remove the mortar. Article of clothing rubber spectacles and a dust mask and remove 20-25mm of erstwhile mortar (more if needed) until you reach a solid base for bonding the new mortar. If the mortar is so soft that the bricks are loosening upwardly, you'll accept to remove and properly reset them. If the cracked mortar is harder, make a relief cut down the eye of the mortar joint using the pointed edge of the chisel and and so gently chip out the mortar (brick grout) that contacts the brick.
If the removal work is going actually slowly, use an angle grinder to brand the relief cuts. Exercise care hither; the grinder tin can hands nick and chip the bricks, and so don't use information technology to clean out the mortar contacting the brick. To avoid nicking the bricks, cut the vertical joints before cut the horizontal joints.
DIY Nuts: Check out our essential guide to grinders, files and rasps.
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