METHOD STATEMENT FOR COMBO ROOF WATERPROOFING WORKS
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METHOD STATEMENT FOR COMBO ROOF WATERPROOFING WORKS

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METHOD STATEMENT FOR COMBO ROOF WATERPROOFING WORKS 

     

     - Purpose and Scope.

- Materials.

- Execution

- Surface Preparation.



Water Test.



Installation of Geo Textile, Screed and top coat. 



  • Upon successful completion of flood test, water shall be removed and geo-textile (ALYAF  140gsm) membrane shall be laid as a protection layer over the entire roof area prior to commencement of screeding works. 
  • After laying of Geo textile, make level markings for screeding at site and screeding crew shall commence the paneling work using filler board and pre-mixed cementitious adhesive mortar to attain the desired slope levels as indicated in the approved drawing.
  • Protective screed (Design mix attached) shall be laid (to an average thickness of 80mm) with the approved Manufacturer.


  • Once screed is completely cured, all construction joints shall be opened and treated using BAYSEAL PS sealant for accommodating movement of the concrete during expansion and contraction.


  • Once sealant applied is completely cured, Angle fillet is made along all the corners with 1:3 ratio topcoat of (DR. FIXIT UNITHANE HB) shall be applied over entire screed including upstand to form a uniform coating.
  • Once the final coat is completely cured for 48 hours. Raise final inspection request and get approval from consultant/Main contractor and handover the area to Main Contractor for other finishes.

- Control.

  • To acquire the specified requirements, follow the Inspection and Test Plan (ITP) in this method statement that will serve as a guideline for the Construction Team and QA/QC Team in monitoring, inspection and testing.
  • A checklist for this activity will be used by the Construction Team to identify each point to be inspected at every stage of the activity. 
  • The QA/QC Representative will verify the compliance and completeness of the work by inspecting it and reviewing the same checklist.









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