Saturday, 16 August 2014

Tuckpointing Old Mortar Joints – What You Should Know?

Mortar joints can be damaged due to the elements of nature and need a tuckpointing job regularly. Buildings that were constructed in the 1900’s were constructed with very little use of mortar. There were no or very few joints for expansion. As a result the mortar cracked faster due to expansion and contraction of the joints. Some buildings had unstable foundations that lead to cracks in the joints further. For older buildings the first step in tackling the problem is to fix the joints before application of mortar by tuckpointing.

Lets read a little more about the best suited treatment for fixing old mortar joints – 

1. Raking Of Old Joints
Old mortar joints should not be raked more than half an inch. It basically implies the removal of mortar that is damaged from the joint. It can be removed with the help of a hand grinder or a specialized raking tool. Tuckpointing contractors in Chicago, warn that care should be taken to not to cut the brick while raking. All loose pieces should be removed before tuckpointing is started.
2. The Right Selection of Mortar
The mortar that is selected should match the existing mortar in terms of color, texture and hardness. Most experienced brick repair specialist will first run a test to check the proportions. Finding a proportion that resembles the old Portland cement might not be easy, so look for the closest.  
3. The Finishing Touches
Tuckpointing contractors in Chicago, advsie that tuckpointing might be done with a modern approach, but it is the finishing that matters in buildings with old mortar joints. Once the tuckpointing is complete a stiff brush should be swiped over the bricks in a diagonal fashion in order to remove all extra mortar. Now with the help of a V shaped mortar tool the mortar should be pressed down firmly. 
To know more about Tuckpointing related  issues click here to contact Fortune Restoration.



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