{"id":1234,"date":"2026-07-06T18:50:52","date_gmt":"2026-07-06T15:50:52","guid":{"rendered":"https:\/\/2b2m.gr\/?page_id=1234"},"modified":"2026-07-06T19:06:38","modified_gmt":"2026-07-06T16:06:38","slug":"pvc-geomemvranes-steganopoiisis","status":"publish","type":"page","link":"https:\/\/2b2m.gr\/en\/pvc-geomemvranes-steganopoiisis\/","title":{"rendered":"PVC WATERPROOFING GEOMEBRANES"},"content":{"rendered":"
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<\/div>\n\n
\n PVC WATERPROOFING GEOMEBRANES<\/span>\n

Waterproofing Systems for Tunnels, Underground Works and Technical Structures<\/h1>\n <\/div>\n<\/section>\n\n
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Instaduction<\/h2>\n

PVC geomembranes (Polyvinyl Chloride Geomembranes) are one of the most reliable and widespread waterproofing solutions for underground engineering projects, tunnels, dams, reservoirs, landfills, transportation engineering projects and hydraulic structures.<\/p>\n

They are made of flexible polyvinyl chloride (PVC-P), presenting high elasticity, excellent tightness and long service life even in demanding environments.<\/p>\n

PVC geomembranes are used internationally in large infrastructure projects due to their ability to accommodate substrate movements without loss of waterproofing.<\/p>\n <\/div>\n\n

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Key Advantages<\/h2>\n
    \n
  • Absolute water tightness<\/li>\n
  • High elasticity and elongation<\/li>\n
  • Resistance to static and dynamic loads<\/li>\n
  • Resistance to microorganisms and plant roots<\/li>\n
  • Puncture and impact resistance<\/li>\n
  • Low-temperature resistance<\/li>\n
  • Long lifespan<\/li>\n
  • Capability for heat-sealing the joints<\/li>\n
  • Suitable for underground and geotechnical projects<\/li>\n <\/ul>\n <\/div>\n\n
    \n

    PVC Geomembrane Categories<\/h2>\n\n
    \n

    1. PVC Geomembrane Tunnel Grade<\/h3>\n

    Special geomembranes for waterproofing tunnels and underground projects.<\/p>\n

    They are used in:<\/h4>\n
      \n
    • Road tunnels<\/li>\n
    • Railway tunnels<\/li>\n
    • Metro<\/li>\n
    • Underground stations<\/li>\n
    • Underground technical works<\/li>\n <\/ul>\n

      They are characterized by:<\/h4>\n
        \n
      • High elasticity<\/li>\n
      • High elongation at break (>200%)<\/li>\n
      • Resistance to permanent moisture<\/li>\n
      • Hot air welding capability<\/li>\n <\/ul>\n <\/div>\n\n
        \n

        2. Signal Layer PVC Geomembrane<\/h3>\n

        Two-color geomembrane (Signal Layer) for easy identification of possible damage during application or during operation of the project.<\/p>\n

        Advantages:<\/h4>\n
          \n
        • Immediate visual fault identification<\/li>\n
        • Enhanced construction safety<\/li>\n
        • Easier quality control<\/li>\n
        • Ideal for tunnels and underground structures<\/li>\n <\/ul>\n <\/div>\n\n
          \n

          3. Reinforced PVC Membranes<\/h3>\n

          With integrated polyester or glass-mesh reinforcement.<\/p>\n

          Applications:<\/h4>\n
            \n
          • Ceilings<\/li>\n
          • Rooftops<\/li>\n
          • Industrial buildings<\/li>\n
          • Large surfaces<\/li>\n <\/ul>\n

            They provide increased mechanical strength and ease of installation.<\/p>\n <\/div>\n <\/div>\n\n

            \n

            Standard Dimensions<\/h2>\n\n
            \n
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            Thicknesses<\/h3>\n

            PVC geomembranes are typically available in:<\/p>\n

              \n
            • 1,20 mm<\/li>\n
            • 1,50 mm<\/li>\n
            • 2,00 mm<\/li>\n
            • 2,50 mm<\/li>\n
            • 3,00 mm<\/li>\n <\/ul>\n

              The thicknesses of 1.5 mm, 2.0 mm, and 3.0 mm are specified in the technical data for the GeoTech Signal Layer series.<\/p>\n <\/div>\n\n

              \n

              Roll Width<\/h3>\n
                \n
              • 2,00 m<\/li>\n
              • 2,10 m<\/li>\n
              • 2,20 m<\/li>\n
              • 2,50 m<\/li>\n <\/ul>\n <\/div>\n\n
                \n

                Roll Length<\/h3>\n
                  \n
                • 20 m<\/li>\n
                • 25 m<\/li>\n
                • 30 m<\/li>\n
                • 40 m<\/li>\n <\/ul>\n

                  The technical data sheet for the reinforced GeoTech SE PVC geomembrane specifies a length of 20 m per roll.<\/p>\n <\/div>\n <\/div>\n <\/div>\n\n

                  \n

                  Technical Specifications<\/h2>\n\n
                  \n
                  Watertightness<\/strong>

                  The membranes are completely watertight in accordance with the EN 1928 standard.<\/p><\/div>\n

                  Tensile Strength<\/strong>

                  Typical values: \u2265 15 N\/mm\u00b2 for Signal Layer geomembranes.<\/p><\/div>\n

                  Elongation at break<\/strong>

                  \u2265 200% for geotechnical applications.<\/p><\/div>\n

                  Low-Temperature Resistance<\/strong>

                  Down to -25\u00b0C without cracking.<\/p><\/div>\n

                  UV Radiation Resistance<\/strong>

                  Suitable for temporary exposure during construction and special outdoor applications.<\/p><\/div>\n <\/div>\n <\/div>\n\n

                  \n

                  Applications<\/h2>\n\n
                  \n
                  \n

                  Tunnels<\/h3>\n
                    \n
                  • Road tunnels<\/li>\n
                  • Railway tunnels<\/li>\n
                  • Metro<\/li>\n
                  • Underpasses<\/li>\n <\/ul>\n

                    They are installed between the primary and final concrete, creating continuous watertight protection.<\/p>\n <\/div>\n\n

                    \n

                    Underground Constructions<\/h3>\n
                      \n
                    • Building basements<\/li>\n
                    • Underground parking areas<\/li>\n
                    • Technical shafts<\/li>\n
                    • Pumping stations<\/li>\n <\/ul>\n <\/div>\n\n
                      \n

                      Hydraulic Works<\/h3>\n
                        \n
                      • Water tanks<\/li>\n
                      • Dams<\/li>\n
                      • Channels<\/li>\n
                      • Lakes<\/li>\n
                      • Artificial reservoirs<\/li>\n <\/ul>\n <\/div>\n\n
                        \n

                        Environmental Projects<\/h3>\n
                          \n
                        • Landfill<\/li>\n
                        • \u03a7\u03a5\u03a4\u03a5<\/li>\n
                        • Industrial containment basins<\/li>\n
                        • Waste treatment facilities<\/li>\n <\/ul>\n <\/div>\n <\/div>\n <\/div>\n\n
                          \n

                          Installation Methods<\/h2>\n\n
                          \n
                          \n

                          Free Laying<\/h3>\n

                          For tunnels and geotechnical projects.<\/p>\n <\/div>\n\n

                          \n

                          Mechanical Fastening<\/h3>\n

                          For flat roofs and roofs.<\/p>\n <\/div>\n\n

                          \n

                          Heat sealing<\/h3>\n

                          The coverings are bonded using specialized heat-sealing machines, creating a completely watertight system.<\/p>\n <\/div>\n <\/div>\n <\/div>\n\n

                          \n

                          Certifications<\/h2>\n

                          GeoTech geomembranes are manufactured in accordance with European standards and hold CE certification for use in waterproofing projects for infrastructure, tunnels, reservoirs, and dams, as well as in geotechnical applications.<\/p>\n <\/div>\n\n <\/div>\n<\/section>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>

                          <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

                          PVC \u0393\u0395\u03a9\u039c\u0395\u039c\u0392\u03a1\u0391\u039d\u0395\u03a3 \u03a3\u03a4\u0395\u0393\u0391\u039d\u039f\u03a0\u039f\u0399\u0397\u03a3\u0397\u03a3 \u03a3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03a3\u03c4\u03b5\u03b3\u03b1\u03bd\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03a3\u03b7\u03c1\u03ac\u03b3\u03b3\u03c9\u03bd, \u03a5\u03c0\u03bf\u03b3\u03b5\u03af\u03c9\u03bd \u0388\u03c1\u03b3\u03c9\u03bd \u03ba\u03b1\u03b9 \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ce\u03bd \u039a\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u0393\u03b5\u03bd\u03b9\u03ba\u03ac \u039f\u03b9 \u03b3\u03b5\u03c9\u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2 PVC (Polyvinyl Chloride Geomembranes) \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03bc\u03af\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03bb\u03ad\u03bf\u03bd \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c4\u03b5\u03b3\u03b1\u03bd\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c5\u03c0\u03cc\u03b3\u03b5\u03b9\u03b1 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ac \u03ad\u03c1\u03b3\u03b1, \u03c3\u03ae\u03c1\u03b1\u03b3\u03b3\u03b5\u03c2, \u03c6\u03c1\u03ac\u03b3\u03bc\u03b1\u03c4\u03b1, \u03b4\u03b5\u03be\u03b1\u03bc\u03b5\u03bd\u03ad\u03c2, \u03c7\u03ce\u03c1\u03bf\u03c5\u03c2 \u03c5\u03b3\u03b5\u03b9\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03ae\u03c2 \u03c4\u03b1\u03c6\u03ae\u03c2, \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ac \u03ad\u03c1\u03b3\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2. \u039a\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b5\u03cd\u03ba\u03b1\u03bc\u03c0\u03c4\u03bf \u03c0\u03bf\u03bb\u03c5\u03b2\u03b9\u03bd\u03c5\u03bb\u03bf\u03c7\u03bb\u03c9\u03c1\u03af\u03b4\u03b9\u03bf (PVC-P), \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1, \u03b5\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ae \u03c3\u03c4\u03b5\u03b3\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9…<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1234","page","type-page","status-publish","hentry","description-off"],"_links":{"self":[{"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/pages\/1234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/comments?post=1234"}],"version-history":[{"count":1,"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/pages\/1234\/revisions"}],"predecessor-version":[{"id":1236,"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/pages\/1234\/revisions\/1236"}],"wp:attachment":[{"href":"https:\/\/2b2m.gr\/en\/wp-json\/wp\/v2\/media?parent=1234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}