The process begins with the proper analysis of the Kansas City Stone repair problem, followed by use of the correct materials along with skilled workmanship to apply those materials. Durable Restoration personnel are trained in the use of these historical materials and methods. Our personnel have been trained and certified by U.S. Heritage for use of lime putty mortar, as well as Cathedral Stone, for use of Jahn mortar in repair of natural stone, terra cotta, brick, plaster, and stucco. Masonry cement is a mixture of Portland cement, ground limestone and air entrainment (in the form of soap). This mixture creates a mortar with properties that can actually damage historic brick.
Masonry cement is hard and inflexible. Because the bricks on historic homes are softer than modern cement, bricks may be damaged as the wall moves and shifts. It traps moisture (is vapor impermeable) which can cause the face of the brick to explode. It also has a lower bond strength, which results in a poorer bond to the brick.
Why Use Lime Mortar with Historic Brick?
Lime mortar is made of burned limestone, rather than ground limestone. This burning process is what gives lime mortar the properties that are required for historic masonry restoration. Lime mortar has low compression strength and high flexibility. It absorbs movement and protects the bricks from [Historic masonry] the effects of settling and expansion and contraction.
Lime mortar is vapor permeable making it capable of relieving moisture which has been absorbed by the bricks. Lime particles are much smaller than Portland cement particles, resulting in greater bond strength to masonry units. It does not require air entrainment, so it adheres better and remains more leak resistant. It
is also self-healing; moisture from rain causes small cracks to knit back together. Lime mortar absorbs more water than masonry cement, which will help keep the inside of your building dry.
The Choice is Yours
For historically correct masonry repair Kansas city area that will look good and stand up to time and the elements, choosing the right mortar is as important as choosing the right historic masonry contractor. Kansas City Masonry is certified and trained by The U.S. Heritage group for the application of lime mortar. We understand the unique properties of historic masonry including finding the appropriate mortar mix for your property; proper preparation of the masonry joints to make the repair last as long as the original masonry; and matching the existing mortar, especially when spot-pointing small areas on a wall.
We specialize in residential homes with designs that reflect our clients’ personality and lifestyle. Let us help you create your dream home.
Kc Masonry use's specialty cleaning methods to restore masonry buildings to their original appearance while preserving the masonry’s integrity. Some of the cleaning methods include Soaker hose, water pressure, specific detergents, paint stripping and poultice. KANSAS CITY Brick & Mortar Staining* Concrete Repair RESIDENTIAL and COMMERCIAL
With over 30 yrs Experience and Knowledge in Residential and Commercial Masonry