Post-Applied Water Repellents
Download Design Note
- We recommend the use of a clear, colorless, breathable penetrating water repellant sealant as part of a comprehensive moisture control strategy using WCT units and flashing and weeps.
- The integral water repellant in the block and mortar addresses most moisture penetration; the post-applied sealant helps with if there are any small voids in the wall.
- Application of the sealant should be demonstrated and accepted on the sample panel prior to application on the main walls.