*
I am considering adding a room addition to our house built in 1949 that has a concrete block foundation. I am looking for suggestion on how to seal the joint/ inside corner where the new poured concrete foundation will join with the existing block foundation.
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story
The crew talks about work start times, fire-resistant construction, fixer-uppers, building Larsen trusses, and AI for construction.
Featured Video
Related Stories
Highlights
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Fine Homebuilding Magazine
Fine Home Building
Follow
-
Fine Homebuilding
Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.
Start Free Trial Now -
GBA Prime
Get instant access to the latest developments in green building, research, and reports from the field.
Start Free Trial Now
Replies
*
Install a strip of water bar, centered, the full height of the foundation, on the block side, centered between your forms of the poured side.
Any commercial concrete accesssories supply store will be able to help you. It is manufactured by several sources. Most are peel and stick and are activated by the concrete during the pour.
Gabe
*
I am considering adding a room addition to our house built in 1949 that has a concrete block foundation. I am looking for suggestion on how to seal the joint/ inside corner where the new poured concrete foundation will join with the existing block foundation.