4.8 (30)

At Multidex Waterproofing we will stop water from finding a way to wreck your concrete slab roof

Storm water won’t sit on your concrete slab roof with our specialised and drainage engineered to move water off of the slab before it ever gets the chance to sit and work its way in.

Up to 10 year warranty

Qualified torch-on applicators

Free on-site assessment

Flat roofs don’t shed water the way a pitched roof does, and that’s a structural problem waiting to happen

Water sits, it finds the smallest crack in the surface, and once it’s through, it’s not just a leak, it’s water sitting against the reinforcing steel inside the concrete slab. That will become a structural problem wearing a leak as a disguise. We do work on any and all concrete slabs, we do not do the actual slab and building up of the concrete slab that would be the builders/developers scope of works. Our approach follows one of two methods (depending on the architects and clients requirements) either full bond or loose lay method, both are specified and acceptable in the industry.

Step 1

Prep the Surface

Prep and clean the slab.

Step 2

Prime & Bond

1 x layer bitumen primer coating to ensure a dust free surface and to allow proper bonding of the torchon layer. Allow to dry 20 minutes.

Step 3

Seal with Torchon

1 x layer of the 4mm torchon system is installed (full bond or loose lay) , the application of the torchon is either Derbigum, ThermoDual and Torch Dual. All of the torchons are supplied by the longest standing suppliers in South Africa and we have their full backing. We have been approved applicators of the torchons since 1982. The torchon’s are gas welded to ensure a good and proper seal throughout.

Step 4

Size the Drainage

Drainage points/full bores/side outlets must be a minimum of 110mm pipes.

Step 5

Flash the Upturns

Counter flashings are installed at all upturns on feature walls as per manufacturers specification, this includes a 100mm membrane using Bondflex/Plasticrly or Bondcryl.

Step 6

Coat & Protect

1 x layer protective aluminium coating is applied as the final coating to ensure longevity and protection from our African sun.

Trusted by homeowners, corporates, and many more

         Posted on Google  
   
   Henry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent Service from Multidex!
  
 
      Posted on Google  
   
   Marnus Viljoen 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great work very affective
  
 
      Posted on Google  
   
   BELINDA Martens 
 
 
 
 Trustindex verifies that the original source of the review is Google. After years of a leaking roof and temporary fixes we have finally had our roof repaired through Multidex.  After the recent heavy rains we are leak free. Thank you to Shaun and his team for the excellent service.
  
 
      Posted on Google  
   
   Willem Van de Venter 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had to do some serious waterproofing of the roof and Multi-Dex delivered!! From the initial consultation through to the completion of the work, their expertise and professionalism was clearly visible. I am extremely happy with the end result and would definitely recommend Shaun and his team! Great work guys!!!!
  
 
      Posted on Google  
   
   Anthony Sardinha 
 
 
 
 Trustindex verifies that the original source of the review is Google. My go to as a contractor! All the experience they have cannot be bought. Would definitely recommend them over and over again
  
 
      Posted on Google  
   
   Themba Austin Mathebula 
 
 
 
 Trustindex verifies that the original source of the review is Google. Best system in South Africa.
  
 
      Posted on Google  
   
   Mitch Miarino 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service and excellent staff with years of experience and knowledge. Shaun was fantastic. Really did a great job. Thanks team.
  
 
      Posted on Google  
   
   Seth Scott 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have used Multi-Dex for over 10 years on my own properties as well as a subcontractor, and I wouldn't use anyone else for torch-on waterproofing
  
 
      Posted on Google  
   
   Christine Stallard 
 
 
 
 Trustindex verifies that the original source of the review is Google. From speaking  to Shaun and receiving quote to team on site and job finished....excellent professional, helpful and friendly service. Then site left in immaculate clean and tidy order Family and friends have used Multidex for many years now and will continue to do so for many more.
  
 
  
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