How To Seal Exterior Concrete Block Walls
Stucco is similar to concrete but more decorative.
How to seal exterior concrete block walls. Cinder blocks are classified as permeable to water and water vapor 10 perms. Concrete is an inexpensive way to create a strong cover. Drylok extreme latex base masonry waterproof coating is drylok extreme latex base masonry waterproof coating is ideal for interior exterior above or below grade masonry walls basement walls foundations landscape walls cinder blocks concrete blocks bare concrete swimming pools stucco and brick. The best and easiest way to make sure your cinder blocks will not leak is to take preventive actions before you need it.
Fortunately you have many options for improving a cinder block wall. Standard concrete block is semi permeable 5 perms. A great newly concrete poured wall with 8 10 inches thick is considered impermeable. Block foundation walls will provide only a weak barrier against capillary water seepage and water vapor.
How to seal repaint block walls. A cinder block is much more porous compared to a standard concrete block or poured concrete. Paint on two coats of concrete block sealer to the interior of the block. Why cinder block walls leak.
How to seal a leaking concrete wall. Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar. Whether keeping out the damp or sprucing up a room sealing and repainting block walls adds value to a room. Using a roller roll on the sealer allowing 30 minutes of drying time between each coat.
However some walls gush water through openings in the concrete. If you properly paint a concrete block wall it will last for years with little upkeep. Block walls particularly in basements may be damp. Here are 5 basic steps to help you do the job successfully.
Concrete walls sometimes only leak periodically such as after a hard rain or during snow melts. How to seal cinder blocks walls. Concrete blocks commonly begin to show signs of dampness or worse leak water soon after exterior waterproofing. This sealer will penetrate the block pours sealing them off from any invading water.
Features flexible encapsulated polymers for a beautiful smooth waterproof finish. There are two basic types of finish on concrete block smooth and split face. Step 1 clean the wall. 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.