Installation Details

Step 1

Protech GM HM should be unrolled over the prepared ground or sub-floor which should be free from any sharp protrusions.  When the membrane is to be laid below the concrete slab, it should be loosely laid to accomodate any small movements.  Prior to the application of the Protech GM jointing tape, all surfaces must be dried thoroughly.  A strip of Protech GM tape (see seperate spec) , is unrolled over the membrane at its nearest edge 50 mm from the membrane edge.  

  
 

Step 2
Remove protective paper from tape, prior to rolling adjacent run of membrane, which should be carefully unrolled over the jointing tape, ensuring a 150mm overlap.  Alternatively, the membrane may be welded; however, this should only be carried out by a competent specialist installer. 

  
 

Step 3
In areas where the membrane crosses cavity walls or internal single skin walls, Protech GR-DPC should be used in conjunction with Protech GM HM Internal & External preformed corner units. 

Pipe penetrations should be sealed with Protech GM Tophats or Protech GM Flashing Strips

Stanchions and columns should be sealed with Protech Bitumen Primer and Protech GM Flashing Strips.  

  
 
 

PH: 1800 174 900

 

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