PARAPET
MAIN FEATURES
■ Outdoor application
■ Aboveground application
■ Exposure to rainwater
■ High degree of saturation
Elements that compose an outdoor parapet are subject to a high level of saturation since the front, back and top are exposed to the elements. For this type of application, Canadian Standard CSA A 179-14 recommends the use of a Type S Mortar.
Installation of any exterior facing is particularly important, since the facing is the first defence against water infiltration. One of the roles of mortar is to effectively manage rainwater flowing overthe facing. Since our Canadian climate involves numerous freezing and thawing cycles, it is important that minimal water remain in the facing when the first freezing cycles occur. To help the facingmange rainwater, we recommend the use of a lime-based mortar.
Mortars containing lime have long proven effectiveness. Furthermore, Canadian standard CSA A 179-14 indicates that a mortar rich in lime will likely resist water penetration better and reduce cracking. (CSA A 179-14, pg. 44).
Recommendations
TYPE OF MORTAR RECOMMENDED FOR THE CONSTRUCTION: TYPE S
A ■ Without any joints between the masonry unit on top: King® 2-1-9
B ■ If masonry units are used as coping: Reconstec MF
