Ask Jon Eakes

Last Updated: Monday, May 10th, 2010, Created: Wednesday, April 9th, 2008

Weather Restrictions: Masonry based weather proofing coatings (parging)

. WEATHER & RENOVATION is a joint project of: CTV.ca and JonEakes.com designed to help you plan home improvement projects around weather restrictions. If you have just been checking the weather for your project on the CTV web site -- welcome to JonEakes.com where you will find all the details for your home improvements. If you started here and are looking for weather restrictions related to home improvements, follow this link to CTV.ca where you can get your local weather forecast together with weather restrictions for specific products  on the bottom of the page.

********************************

Pargings, like stucco, on the outside of the house are not "waterproof" coatings but "weatherproof" coatings -- an important distinction. Like most sidings they are designed to shed rain, protect the wall from mechanical damage and the UV rays of the sun. Like most sidings they must allow moisture to escape from the wall and in the case of stucco that is by having a material that is quite permeable. Waterproof stucco, or efforts at total face seals on the outside of the house, generally cause moisture and rot problems in the Canadian climate. So before even beginning to study masonry coatings, I would suggest a bit of a study to understand WHAT IS A RAINSCREEN WALL? and RAINSCREEN DETAILING. Many of the tips for WORKING WITH MORTAR IN HOT & COLD WEATHER apply to stucco as well. Don't miss the reasoning behind the warning: NEVER ADD SOAP TO A STUCCO MIXTURE.

Keywords: Basement, Concrete, Damage, Foundation, House, Joints, Masonry, Moisture, Mortar, Products, Renovation, Stucco, Walls, Waterproof, Weather

Print Send To A Friend

Article 2148

Privacy