COMBO ROOF SYSTEM (METHOD OF STTAMENT)

COMBO ROOF SYSTEM

  1. Cleaning of dust and debris on the roof area using compressed air.
  2. Polyurethane foam spray: Supply and apply approximately thickness of average 70mm polyurethane
    foam with density 40kg to 45kg.
  3. Rubberized coating: Above completion of polyurethane foam application, Rubberized coating shall be
    applied over entire foam to protect it from UV rays till the water test procedure is completed.
  4. Flood Testing the Roof: Once acrylic UV coating is completely dried (minimum 24 hours), flood test will
    be done by main contractor.
  5. Separation Layer: Above the rubberized coating 120 gms/m2 geo textiles alaf., the filter membrane will
    lay down as separation layer with overlap 10cm.
  6. Preparation of Panels: On the geo textile the flexible board 2 * 3 meter panels will be made in slopes
    for screed.
  7. Screed: Supply and application of a layer of ready mix screed to slope of average 80mm thick. And
    skirting will be done around parapet walls and AC foundations.
  8. Filling Sealant into the Expansion Joints: After stability of screed the flexible board will be removed
    from the joints and filled with single component of polyurethane sealant having the backing rod inside.
  9. Foundation’s Waterproofing: All AC foundations & Water tank Foundations’ top coating will be done
    horizontally and vertically.
  10. Polyurethane coating: Finally, the Polyurethane Top Coating (with SRI Value more than 78%) will be done as protection and final finished layer to give attractive and smooth look on the roof top.