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| Aldercourse GRA When used contiguously with Alderprufe MR50 or Alderprufe GRA, a gas retardent membrane and damp-proof course system is formed for use on landfill sites and in other areas where protection from gases, particularly methane, CO2 and radon is required. |
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| Aldercourse GRA is an aluminium cored damp-proof course, developed in combination with Alderprufe GRA and MR50 to provide continuous "through the wall to floor" junction. Both products have a low permenance of methane and other gases including Radon. | |||||||||||||||||||||||||||||
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