Best Ways to Waterproof a Basement
  • September 21,2020

How to Waterproof Basement Effectively?

It goes without saying that you will not like that any part of your house remains un-utilized due to wet basement. No doubt, dampness and moisture help germs to grow and cause diseases. Then, without wasting a moment, lets focus on making the basement of your house completely waterproof by applying certain handy techniques which you will learn in this article.

Tools and materials needed

Basement drainage system involves a troublesome work but this job can be done in best way by hiring services of professional expert. Some tools are needed for this job like hacksaw, jigsaw, dust mask, extension cord, masonry drill bits, shop vacuum, trowel, tape measures etc. Apart from these, materials you will need, are duct tape, concrete mix, irrigation hose, irrigation, river rock, sheet plastic and sump pump.

Things to do before waterproofing a basement

It is direly needed that before starting the job of waterproofing a basement, first of all stop the inflow of water. Ensure, sewerage lines are working well and there is no blockage of any kind. You will have to take a great care for finished basement. Carefully break concrete leaving some sections of floor adjacent to wall. Tunnel can be made if some obstacle like furnace hurdles. Consult all your project with the concerned building official about it and detail him all what you want to do. It might be possible the building official knows all about the layout of your house and issues emerging in this locality.

Surely seepage and dampness cause severe damages if it remains unchecked. It is no use of applying some coat or any such product in the basement because issue is on outer wall. Let us have a look at remedial measures in this context:

Dig the perimeter of basement

Preventive measure to protect basement from dampness, is to dig the perimeter around the basement up to the foundation of house. You will have to apply the appropriate products on the walls so as to get confirmed waterproof basement. Adequate drainage systems like gravel, drainage tiles, perforated pipe systems or materials are installed for protection.

Check cracks after excavation

After you have completed excavation, now completely wipe the wall and observe the cracks or vulnerable areas responsible for water seepage. When you find any of such issue, then apply a coat of hydraulic cement for stoppage of leakage. Hydraulic cement, has the property of expansion on curing and will fill the voids and cracks that are certain to cause water leakage.

Apply cement based sealant

Such sealant hardens and closes the pores in concrete. Hence, apply cement based sealant externally on the walls of your affected house. These are quite comfortable to apply on the masonry and concrete surfaces. The biggest plus of this cement based sealant is that cracks that remain unfilled during hydraulic cement application, are addressed now with this sealant.

Apply waterproofing membrane

The benefit of these elastomeric membranes is that these even fix the cracks to be happened in future. Ensure that always use a waterproofing product and avoid usage of damp-proofer product. It deserves to mention here that this elastomeric membrane is composed of modified asphalt possessing great waterproofing properties in it. So, with confidence, apply such membranes. An asphalt-modified polyurethane material you can spray or trowel over seal foundation exactly on lactation of water entrance from the outer side.

Install drainage mat having shaped dimples. The basic purpose of using such material is to provide air gaps in the walls, for travelling moisture to drain structure. It should be taken a great care that drainage mat is cut in accordance with the depth of foundation. Additional befit of this mat is that lateral pressure in the foundation is also released.

Install weeping tile or French drain

Installing weeping tiles or French drain provides an easy path for maintenance purpose. You can use 4-inch pipe at the base below basement floor. Now backfill the structure with gravel at distance of 18 inch from grade at earth and 4 inch from grade where cement is poured.

You must avoid certain things while waterproofing basement. Never use tar that eventually cracks. Also do not apply plastic like sheet as it would not work effectively. Backfill should not be used with limestone because limestone decreases properties and clogs the drainage structures.

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