Leaky damp and mouldy unprotected foundation if you re living in an older home chances are it has a stone foundation.
Waterproofing old stone basement walls.
The cement will expand inside the fissures and create a water tight seal.
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.
There are several steps to internal waterproofing the first of which involves sealing cracks and holes in the concrete walls of your foundation with hydraulic cement.
Drainage tiles gravel or crushed stone drains perforated pipe or other approved systems or materials shall be installed at or below the area to be protected and shall discharge by gravity or mechanical means into an approved drainage system.
Even though stones are extremely durable the mortar used to set them in place is more susceptible to water leakage causing the dampness in your basement.
Excavate clean and prepare foundation continue reading.
Excavating at the base of an old foundation is risky and best left to those that are experienced with old structural masonry techniques.
Waterproofing basement walls from inside.
If there s enough water making its way through the wall however even the thickest waterproofing material may ultimately allow water to pass into the basement.
Installing interior drain tile a system of perforated pipe buried in washed gravel under the basement floor will alleviate.
When it s done you ll have new dry walls and any residual water that seeps through the old basement walls will be directed to the drain channel and pumped away.
Having the right product applied over the walls will be key to having a successful waterproofed basement.
Old stone and brick foundations rarely have any footings at the base of the walls.
Masonry is porous that s one reason there s such a big market for waterproofing sealers which create an impervious barrier on the surface of a brick concrete or stone wall.