Understanding Anti-Termite Treatment: Classification and Application Techniques

• Oct 26, 2024

Anti-termite treatment is a protective measure applied to structures to guard against infestations by subterranean termites. This treatment involves the use of specialized chemicals designed to create a barrier that prevents termites from accessing the building. The effectiveness of the treatment typically lasts for a minimum of 10 years, helping to ensure the structural integrity and longevity of the building. Proper application is essential, requiring thorough preparation of the site and consideration of soil conditions to maximize protection. 

Procedure of Before Construction

1. The surface of the ground should be clean, compacted and firm. it  should be free from any form of organic impurities like wood, debris, leaves, plants etc...
2. The back fill material that will be used should be free from any organic impurities.
3. While treating heavy soil like clay or sloped surfaces, where penetration of the chemical into the soil is slow shallow cuts, should be made on the surface to a depth of at least 75mm.
4. In case of sandy, loose or porous soil, where the chemical solution may be lost due to percolation, preliminary moistening should be done to fill the capillary spaces.
5. The chemical treatment of the soil should start only after the foundation trenches or pits ready for concreting.
6. Treatment should not be given when the soil is wet due to rains or sub-soil water 
7. The normal anti termite treatment should not be done at areas below water table. If needed technical inputs should be taken from the structural consultant regarding a suitable system of anti termite treatment in such areas.
8. In water logged areas, dewatering should be done and chemical emulsion should be applied when the soil is absorbent. This treatment based on IS 6313 (Part 2): 2001 

Procedure of During Construction

Concentration to be adopted for preparing the chemical emulsion using 20% EC shall be 1% by weight for all the following treatment procedures, unless otherwise mentioned or instructed at site. Continuous chemical barrier should be ensured for the structures that are being treated.  

Classifications of Anti Termite Treatment:                                 

1. Treatment for termite mounds
2. Treatment of masonry structures
3. Treatment of RCC Foundations & Basements
4. Treatment of soil along external perimeter of the buildings
5. Treatment of soil under apron along external perimeter of the buildings
6. Treatment on top of the plinth filling 
7. Treatment at junction of wall and floor 
8. Treatment of walls retaining soil, above the floor level
9. Treatment of soil surroundings pipes and conduits
10. Treatment of soil beneath expansion joints

Required Tools and Equipment: