Waterproofing techniques for basement floors.
Saturday, February 6th, 2010Why is basement floor waterproofing so often overlooked, when if it was done when the basement was built, there would be fewer problems with seepage and flooding? A basement can be so much more than just a convenient place for storing junk! The possibility of family rooms having extra space are realized.
Water situation was not encountered in the beginning by homeowners, but it later appeared because sub-floor and sub-surface drains clogged with mud.
If water from the roof is not directed far enough away from the foundation, then the soil becomes too saturated. As the home stabilizes, wall fissures appeared, exterior paintings decayed and the drains filled with sand or silt. Leakage in the basement can be caused by all of these problems. Flowing ground water enters through cracks or other openings in the foundation; moisture in saturated soil enters through solid masonry as well as through cracks and other openings because of the natural pressure the soil exerts against the foundation. A high water level can create a great amount of pressure. If water is pressurized, concrete cannot withstand it, concrete will surely break because the water will seek all cracks or crevices in the walls and floors. The end results are a water filled crawlspace or basement.
A pressure relief system can eliminate water that leaks into your basement. Primary pumps cannot work if the electricity goes out during a rainstorm. Pressure builds up over time and moisture is pushed through the wall or floor. (usually called bleeding). Usually you’ll find seepage in corners or in joints where the wall meets the floor.
If water come from an isolated area and is installed a pump below the floor level will lower the water and the underground pressure Water vapor will go right through concrete since it is porous. A wet or damp basement due to excessive moisture will cause carpeting to rot, allows mold to grow and makes the basement smell musty.
One solution is to use one of the high-grade sealants that are available on the market for the home-owner. It is often possible to paint them with either the roller or spray method.
A normal basement floor waterproofing job may entail:
- preparing the floor by removing crumbly or loose material.
- making sure the basement floor is as dry as possible, hiring large fans or heaters if necessary.
- making sure wall/floor junctions are sealed.
- Filling in all crevices and bends which are especially visible.
- Find out if it is necessary to use a primer and if it should be, prime the floor as per instructions
- Use 2 to 3 coats as needed to top coat the floor with the final product.
A high quality product will result in basement floor waterproofing that can last for years and years. There exist sealants in the market like PermaFlex which has lasting and durable basement floor waterproofing. Quoted as being the only indoor waterproofing system that completely seals any basement floor permanently, no matter how wet or deteriorated, seems a good easy system that costs a few hundred dollars as opposed to thousands for considerable manual work, pumps and pipes.
