How To Seal Sandstone Basement Walls

If the walls have been treated with a sealer a basic clear coat will add additional protection.

How to seal sandstone basement walls.

Interior waterproofing a stone foundation can experience seepage through cracks in the basement floor or at the point where the floor meets the wall either leak caused by hydrostatic pressure beneath the foundation. If you re going to build new walls inside the existing concrete. Polypropylene drainage mat enkamat is one example running it about 14 in. Pour the sealer into a clean hand spray bottle or a backpack spray low pressure spray not mot more than 20 psi.

While community building rules differ in general you will not need a permit just to seal or paint the concrete basement walls. Due to the porous nature of the sandstone use a sealer like sealtight clear that is deep penetrating. Purchase a spray can at any art supply store that will dry clear. Then cover the floor with 2 in.

A basement sealer is vital to keeping the contents of your home and its foundation from suffering the effects of leaks. Installing interior drain tile a system of perforated pipe buried in washed gravel under the basement floor will alleviate. Seal the wall after the paint has dried. The first step is to cover the floor with a 3 4 in.

Of extruded polystyrene xps insulation turned up at the perimeter creating a sort of rigid foam bathtub where a new slab is poured. Afterward a good masonry sealer will protect them against moisture and damage. If you or a previous owner painted the basement walls you ll have to remove the paint before applying sealer which only adheres well. Many solutions for sealing basement walls and floors are do it yourself although a few may require the help of a professional.

Sometimes all it takes is a thorough cleaning to help your stone basement walls look almost new again. All of these things can take their toll on basement walls made of masonry such as natural stone. Don t apply sealer over painted walls or efflorescence.