Paint the cinder block wall with a thick coat of masonry waterproofing paint, pushing paint into cracks and crevices of block. A paint roller or brush made specifically for masonry is best. Allow to dry overnight or for a minimum of 12 hours between coats.
Can you waterproof cinder block?
To waterproof, strengthen, and preserve the overall appearance of your basement cinder block walls, seal the blocks permanently against moisture and efflorescence with RadonSeal Plus Penetrating Concrete Sealer . ... Remove Paint and Efflorescence – The surface of the blocks must be bare and porous.
How do you cover a cinder block wall outside?
Concrete. The simplest way to cover a cinder block wall is by using surface bonding cement to create a concrete finish . Concrete helps insulate the building and keep moisture out. It creates a smooth, finished surface you can leave as is or paint.
How do you cover interior cinder block walls?
You can hide your concrete blocks altogether by facing the wall with wood paneling . To do this, attach horizontal furring strips to the wall using a hammer drill and screws that are made to drive into concrete.
What do you fill a cinder block wall with?
When concrete blocks are stacked on top of one another, you can look down through the center of the foundation. After the concrete blocks are laid, the voids can be filled with a cement-based mortar or poured concrete that contains small pea gravel .
What is the difference between a cinder block and concrete block?
Cinder block is made of concrete and cinder. Concrete block is produced from steel, wood or cement. Cinder block is lighter than concrete blocks . Concrete block is heavier because it contains stone and sand.
How long does cinder block last?
As such, cinder block walls need the application of a waterproof coating and a damp-proof membrane at least once a decade. It is important to note that a house constructed using concrete blocks that use sand as aggregate will last anywhere between 50 and 100 years .
Can You Use Flex Seal on cinder blocks?
Flex Seal can be used on almost every surface : wood, metal, tile, concrete, masonry, fabric, glass, plastic, aluminum, porcelain, drywall, rubber, cement, and vinyl. Plus, it won’t sag or drip in the summer heat, and it won’t crack or peel in the winter cold.
What causes cinder blocks to disintegrate?
Water . Water is the primary cause for most crumbling concrete. ... Whether from flooding or from repeated rains, water eventually wears down the structure of a cinder block from the outside, causing it to flake off and crumble. If a block has not been properly cured, water can also infiltrate the interior of the block.
How do I stop water coming through my block wall?
You can stop pinhole water leaks in your cinder block walls by sealing them with a masonry waterproofer . Masonry waterproofers contain particles of silica or epoxies that bond with the cinder-block surface to create a waterproof barrier that plugs the pores that cause pinhole leaks.
What is the easiest way to cover a concrete wall?
Fortunately, you can cover basement foundation walls quickly and inexpensively. Attach wood furring strips, Z-shape channels , or 2×4 studs to flat, dry masonry walls, then add insulation and cover the strips or studs with drywall.
Can you put drywall over cinder block?
You can install drywall over cinder block . ... While drywall is typically installed on framed wood walls, you can install the panels on the interior of a cinder block wall as well. You’ll have to create a wood grid on top of the blocks to hold the panels.
How do you cover concrete block walls in a basement?
If your concrete-block basement walls are dry and free of efflorescence or mold, you can seal them with a masonry sealer or all-purpose water-base primer-sealer and paint with a high-quality latex paint. Paint is an easy way to make the basement feel warmer, brighter, and more welcoming.
Should I fill my cinder block with concrete?
Whenever you are working with cinder block, you can strengthen them significantly by filling them with concrete . ... This is something that is not difficult to do and will strengthen your cinder blocks quite a bit. You may also find that if you have cinder blocks that are cracked, concrete can help.
Do cinder block walls need rebar?
The cores of the concrete block need to be filled solid with strong concrete that has pea-sized aggregate. Poured concrete foundations also require reinforcing steel if you want the walls to resist the horizontal forces of wet soil.
Do you have to fill cinder blocks with concrete?
The reason filling is not recommended in most cases is that as the joining solution (mortar or concrete) you use to join cinder block solidifies, whatever you add within will diffuse the moisture inwards. Not only with that, even if you’re adding soil, there will be moisture within. Concrete, of course, will be wet.
