Plesons Brick and Stoneworks Signature Tuckpointing Procedure
Step 1-Evaluate the mortar, old mortar removal process.
Old mortar removal is accomplished by either grinding, chiseling or hand raking the
deteriorated mortar from the joints to a minimum depth of 5/8”. Then the joints are
either hand brushed or blown out to remove dust and debris to insure a strong bond with
Step 2-Repointing procedure.
Once the joints are cut out and properly cleaned, new mortar can be applied to the joint
with a jointer. There are many different joint styles available. Concave, flat, weathered,
raked and grapevine just to name a few are often used. Mortar type is also a big factor in
tuckpointing. Historic homes often used softer brick than the units available today. These
soft brick cannot tolerate the high compression strength of Portland rich mortars used in
present masonry construction. This hard mortar commonly causes the soft brick to give
way when settling, expansion and contraction, and other movements occur which result in
spawled or sheared brick faces, severe cracking, and chipped brick edges. To avoid these
problems a lower compression strength lime mortar must be used. Color match
tuckpointing is an art that is accomplished by highly experienced masons who can break
down the mortar to find out what was originally used. Type of sand and tooling techniques
play a dominant role in proper matching of mortar. This process can be a time consuming
but rewarding task when the project is completed. Once the joints have been pointed and
properly brushed the curing process begins,
Step 3-Cleaning process.
Once the joints have cured it is time to determine if a cleaning procedure should be
performed. There are endless masonry cleaning products and procedures, we use the
prosoco brand. Prosoco carries a wide variety of masonry detergents, acids, restoration
cleaners, mold killer, effloresance removers and white scum removers to bring grungy
looking building or homes back to their original beauty.
Step 4- Waterproofing.
To get the best performance it is always recommended that a sealer is applied after tuck
pointing, replacing brick, replacing stone, new brick, new stone on parapet walls,
chimneys, or any other masonry unit that is exposed to the elements. Not all sealers are
created equal! Please do not be fooled into a low quality sealer sold at the home
improvement stores, they simply do not last. If a contactor tries to apply something of this
nature to your building, simply refuse these products.
A breathable, silicon based sealer such as prosoco Siloxane PD is a high quality product
that goes on clear so there are no shiny, discolored, or patchy looking areas after
application. This product has been tested to last for up to 10 yrs. In even the harshest
environments. This is a breathable sealer which means if water were to enter the wall
through a hole or crack it can still escape.