TERMITE CONTROL TREATMENT



5.1 Scope of Work

The scope of work for anti termite treatment includes injection of insecticide in sides and bottom of foundation trenches, spraying on stockpiled backfill material and injections of the insecticide in floor sub-grade of the building. The scope also covers treatment of all wood works with insecticides before installation in position.

5.2 Material

(a) An approved emulsible concentrate insecticide shall he used after dilution with water, specially formulated to prevent infestation by termites. Fuel oil will not be permitted as a dilutant.
(b) All mixing shall be done at site and mixing proportion of insecticide with water shall be in accordance with the approved manufactures recommendations and shall be verified by the Engineer.
(c) Pure turpentine shall be used for dilution of insecticide, in approved proportion for application to woodwork.

5.3 Quality Assurance

(a) In addition to the requirements of Contract Specifications, comply with manufacturer’s instructions and recommendations for the work, including preparation of substrata and application.
(b) A professional operator shall, be engaged who shall have license in accordance with regulations of governing authorities for application of soil treatment solution.

5.4 Extent of Application

(a) Contractor to ensure a continuity of treatment under and around the footings and up to the slab on grade in the form of an envelope.
(b) Insecticide solution shall be applied with approved pressure spraying equipment maintaining a pressure of 150 psi to all applications to, on or in earth.
(c) Soil treatment shall begin after all work of preparation of earth prior to installation of concrete has been done. After application, no additional earth moving or work upon sub grade should be done. No covering of earth or concrete should be applied over soil treatment until at least 24 hours after treatment has been made.
(d) Insecticide solution should not be applied during wet weather, or when the earth surface is excessively wet. Application should be made to all areas beneath concrete slabs-on-grade, including sidewalks and paving abutting buildings for distance of at least 6 feet beyond building line. Pate of application of the solution shall be as per the recommendations of the manufacturer. Insecticide shall penetrate to a depth of 1 inch. (25 mm) minimum in porous earth at bottom and at least 50 mm at the sides of excavations.
(e) Sides of foundation excavations, grade beam, and similar areas shall be treated with solution at a rate of 0.5 litre per square feet upon inner sides of such excavations, and at all locations where concrete slabs for platforms and similar work abut the building. Similar treatment shall be made at all locations where expansion joints, control joints, column bases and similar work occur at or below grade slabs.
(f) In the areas of application signs shall be fixed to show that soil treatment has been applied. Such signs shall be removed when areas are covered by other construction.
(g) Care shall be exercised to insure that no marks or damage occurs to the finished structure as a result of the work under this section.
(h) All woodwork for the entire project is to be insecticide treated (before application of solignum). Insecticide shall be sprayed on all surfaces of all the wooden work viz., door frames, blocking, furring, planks, boards etc. before installation. Spraying is to be done at the site, after delivery and before installation. No spraying shall be necessary after field sawing, jointing or installation of such material.