Water Proofing Treatment for Basement | | | | (This article is specifically designed for Indian continent)
A dry basement is a fun place to have. Usually home owners do not care for proper design of the basement at the time of consutruction and face tremendous problems later on. If care is taken initially, a lot of problems can be avoided.
Entry of outside water, rise in water level, and seepage from side structure including leakage in pipe and sewer line are some of the problems that one may face.If proper care is not taken for such problems, they may endanger the structure including basement and above floors.
These methods can be applied for water proofing of basement during construction.
- Basement where adequate space is available for excavation.
- Basement where limited space is available for excavation
Basement where adequate space is available for excavation
The excavation of ground for basement is carried out in such a manner that working space of at least 60 cm is available around external walls. If water level is high, the excavated area should be kept dry by continuous pumping.
The following operations are executed in water proofing of basement.
1) On dry and leveled ground 75 to 100 mm thick lean concrete is laid to serve as a leveling course for water proofing.
2) The bitumen based primer is applied with brush on entire area at 0.24 to 0.30 liter per sq. meter after cleaning the surface.
3) Bitumen compound polyester membrane is fixed in hot bitumen of grade 85/25 at the rate of 1.5 kg. Per square meter. This layer should be protected by construction of flat brick flooring.
4) After construction of structural slab and walls, water proofing treatment on external face which is in contact with earth is done.
5) After the surface is cleaned, bitumen primer is applied.
6) Self adhesive S B S rubber bitumen membrane with high density polyethylene film is applied on vertical walls.
7) Before back filling the soil an outer protective wall leaving a space about 100 mm around should be made and the space should be grouted subsequently.
Basement where limited space is available for excavation
The following operations are executed in water proofing of basement where space for excavation around basement is limited.
1) The base slab of lean concrete is laid followed by construction of external protective wall. Its internal face is rough plastered. Horizontal damp proofing treatment is carried out.
2) In the same manner as described in above process vertical damp proofing treatment is applied on inside plastered surface of the protective wall.
3) The treatment should be continuous on the wall and the floor.
4) For vertical damp proofing continuous with horizontal a fillet 75 mm ratios of 1:4 cement mortars should be provided at the junction of the slab and outer protective wall.
5) The horizontal and vertical damp proofing is protected against damage during subsequent operations.
6) Flat brick flooring and an inner protective wall are constructed.
7) The space of 100 mm left between vertical damp roofing treatment and internal protective wall is grouted after laying damp proofing membranes.
8) Thickness and reinforcement of RCC structural slab and walls are designed according to depth.
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| Related tips | -
For basement security, provide supports of planks to the excavated portion to avoid collapse of the sides during excavation in soft or slushy soil.
- Basement can be used as gym, game room, kids play room, home office, store, pool table space, bar or even home theatre. It is good that the basement interior design should be approved by professional ...
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| 29 Comment(s) |
12 >> |
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| | By DEEPAK RASTOGI - On 2/7/2013 8:51:39 PM | | MY LAND AREA IS 50*80 I WANT TO MAKE BASEMENT THEN GROUND FLOOR IN BASEMENT MY OFFICE AND WHOLESALE OF MEDICINES |
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| | By Anonymous - On 11/6/2011 3:14:12 PM | | Göød effective and clear pictures and also clear explantions so thank u |
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| | By sunitagupta - On 6/4/2011 10:59:59 PM | | Hello commumnity members, I have a doubt....since my locality doesn't have a sewere line, so we are planning for a Septic Tank. Acc to Vastu Shastra, it should be in North-West direction, but due to certain factors, it is coming in East direction. So, kindly give its alternative.Looking forward from your reply. |
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| | By Ramachandran V - On 1/5/2011 6:28:53 PM | | The article is interesting,informative and well written.http://raamachandran.com |
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| | By nancy - On 10/20/2010 10:53:54 AM | | How can the dampness in the wall be treated before painting. |
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| | By khushboo - On 10/9/2010 8:38:23 AM | | cant we use dpc in place of water proofing?if not then why?what is the basic difference in D.P.C & water proofing? Q-2 if any building is already constructed & in that building dampness occurs due to the unavailability of D.P.C. then by which process we stop the dampness of that building.plz specify the proper name of that material used to stop dampness. |
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| | By Anonymous - On 8/19/2010 7:46:59 AM | | Pls send some important details before constructing a house |
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| | By Anonymous - On 7/20/2010 11:30:20 AM | | gud discription |
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| | By Anonymous - On 7/16/2010 2:43:32 PM | | It's good |
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| | By vvssreenivas - On 5/20/2010 11:30:51 AM | | Excellent.It is quite informative |
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| | By vvssreenivas - On 5/20/2010 11:30:24 AM | | I am planning to construct a pool on the top floor.I am planning to make the roof top of as the base of the pool.In that case what are the special precautions to be taken during the construction the ceiling of apartment, which will also act as base of pool, to avoid the water seepage.Similarly I wish to make lawn and roof garden on roof top.In that case what are the suggestions and necessry precautions to be followed during the construction of ceiling on which the lawn is to be grown. |
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| | By dev - On 3/25/2010 3:06:43 PM | | pp |
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| | By M.E. Mondlane - On 12/22/2009 1:29:33 AM | | I need to fully have insight in basement layout and construction schedule |
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| | By pawan kumar - On 9/8/2009 11:57:51 AM | | Yes it is helpful article. |
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| | By Khalid Shapoo - On 8/21/2009 12:01:31 AM | | Very informative and practicle. |
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| | By OLUWATOYIN - On 6/11/2009 7:53:45 PM | | The article is nice, well explanatory but cannot be applicable in all the area puting the cost into consideration. |
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| | By Anonymous - On 5/25/2009 5:22:42 PM | | good website |
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| | By Anonymous - On 4/16/2009 9:06:25 PM | | very informative. i am satisfied. |
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