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Treatment for Masonry Foundations and Basements: This treatment is for masonry foundations where there are void in the joints through which termites are able to seek entry into buildings. Treat bottom surface and the sides of the foundation pits / excavations up to a height of about 30 cm with 0.075% a.i. solution of TERMEX 350 SC @ 5 L / m2 of surface area.
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Refill earth: After completing the masonry foundation, the backfill in immediate contact with the foundation structure is treated. Apply termiticide at the recommended concentration of 0.075% a.i. @ 7.5 L / m2 of the vertical surface of the sub-structure for each side. Treatment can be done as the backfill is being replaced or if this is not possible, treat the outside foundation soil after all grading is completed by digging a trench 15 cm wide and about 30 cm deep. The trench should angle towards the foundation. If the footing is more than 30 cm below the surface, the soil must be trenched or trenched and rodded to a minimum of 120 cm but not to exceed the footing. When the soil is replaced in the trench, it must also be treated. If water is used for ramming the earth fill, the chemical treatment can be carried out after the ramming operation is done by rodding the earth at 15 cm intervals close and parallel to the wall surface and spraying the chemical at the above dosage. After the treatment, the treated soil should be tamped in place.
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Treatment Under slabs: Before laying the slab on the floor, the top of the consolidated earth should be treated with the 0.075% a.i. solution @ 5 L / m2. The treated soil must not be disturbed between the time of application and laying of slab on the floor. If the filled earth has been well rammed and the surface does not allow the termiticide solution to seep through, holes up to 5 to 7.5 cm deep, 12 mm diameter at 15 cm intervals may be made to facilitate saturation of the soil with the chemical.
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Treatment of External perimeter / under the apron : If the refill earth was not treated, after the completion of building, the earth along the external perimeter of the building should be rodded at 15 cm interval to a depth of 30 cm to expose the foundation wall surface. TERMEX 350 SC (0.075% a.i.) solution should be poured along the wall @ 7.5 L / m2 of the vertical surface and the earth tamped back into place.
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Treatment for RCC Foundations and Basement: In the case of RCC foundations, the concrete is dense being a 1:2:4 (cement:fine aggregates: coarse aggregates by volume) mix or richer, which the termites are unable to penetrate. Therefore, it is unnecessary to start the treatment from the bottom of excavations. The treatment shall start at a depth of 50 cm below the ground level except when such ground level is raised or lowered by filling or cutting after the foundations have been cast. In such cases, the depth of 50 cm shall be determined from the new soil level resulting from the filling or cutting mentioned above. The soil in immediate contact with the vertical surfaces of RCC foundations shall be treated at the rate of 7.5 L / m2. The other details are similar to the treatment of masonry foundation.
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