Roof Waterproofing
This is the mainstay of our existence in business and we have treated hundreds of // buildings in Pakistan (including East Pakistan) Qatar, Bahrain, UAE & Saudi Arabia as // briefly shown in thc enclosed leaflet.
We are proud to say that during all these years we have never gone back to repair the jobs // done by us.
Developments in the Roofing applications all over the world were followed and these // materiais which suited weather conditions of Pakistan and were effective yet economical // were selected and applied successfully British Code pfpractice co.CP144:1970 namely
ROOF COVERING-Part 3, Built-up Bitumen Felt
and waterproofing Manual of NRCA (National Roofing Contractors association) of USA with latest amendments are followed
Besides fiber based roofing telt to BS747 and fabrjc (cotton cloth) base to ASTM173:79.
We have bccn using: Roofing Felts in the following categories:
- Fiber based to BS747:1968,1970 and 1977 and ASTM
- Fabric based (cotton fabric)based to ASTM D-173:79
- Jute based to BS6398:1983 and ASTM
These all are bases and although sandwitched in proper grades of bitumen are liable to deterioration Polyester fleece, which is inorganic and thus inert and rot proof is now available in Pakistan and we started manufacturing Polyester based Bitumen Felt conforming to BS747 Amendment 1986 type 5U. These felts are more durable and long lasting and are now the mainstay of our root and subgrade waterproofing work as per our specification no SS2D and SS-7.
Polyester Felt to BS747:1986 type 5U with Aluminum foil laminated on one side of the Felt in our spec SS-7 provides and additional protection coupled with reflective insulation property, a vital requirement in summer conditions of Pakistan
There arc other permutations available In effective usc of waterproofing materials suiting various budgets and we advise about them from iob to iob.
Bitumen plays an Important role In effective waterproofing and the selection of a proper grade is vital. Leaflet on Oxybit Bitumen is enclosed. , addition of Rubberized bitumen- which is ultraviolet rays resistant and has better flow, is an addition to our product range.