How To Waterproof A Concrete Block Retaining Wall
You will often see efflorescence white minerals or mold growth on damp concrete.
How to waterproof a concrete block retaining wall. Waterproofing can be applied in just a few hours surfaces area size dependent using a trowel or brush. Ask this old house mason mark mccullough explains and demonstrates the benefits of waterproofing concrete brick. The cement becomes hard quickly so be time efficient. A paint roller or brush made specifically for masonry is best.
Allow to dry overnight or for a minimum of 12 hours between coats. Diy waterproofing solutions if the interior side of the concrete blocks continuously dampens or wet drain the water accumulated inside the hollow cores by drilling weeping holes in the bottom blocks 3 8 masonry drill and allow them dry out for four or more days dryer the better. Subscribe to this old house. Patch any holes in the basement cinder block wall with your hydraulic cement.
Heavyweight concrete blocks are semi permeable 5 perms and less so when the hollow cores are filled and packed with a slurry mix of concrete about 2 perms. Push the cement into the cracks and crevices making sure to pack and seal. How to waterproof retaining walls diy method cement block waterproofing preparation. The best and permanent solution to stop water leaks to below ground walls either cement block retaining walls masonry besser block etc is to do the job right.
Diy waterproofing using liquid rubber paint. Liquid rubber membranes form a seamless one coat permanent water tight. Attention to preparation is required to treat voids form tie holes and joints. Allow the cement to dry before proceeding usually 24 hours.
Paint the cinder block wall with a thick coat of masonry waterproofing paint pushing paint into cracks and crevices of block. Leaking basements issues are a very common problem sadly and there is only one effective way to permanently resolve water leaks for existing masonry concrete retaining walls. Why cinder block walls leak.