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Floating covers

    Geomembranes are commonly used to seal both the bottom and slopes of ponds, basins or deposits, to avoid any contact between the contained liquid and the supporting ground. However, in some cases it is also necessary to avoid the contact between the liquid and the atmosphere by providing a cover on the liquid’s top surface. Floating covers are a flexible and economic way of doing so, avoiding expensive and structurally complex rigid covers.

    To create the floating cover the geomembrane is fixed at the crest of the slope and installed with a specific geometry in combination with a system of floaters and ballast lines, in such a way that the cover can move up and down following the level of the contained liquid, whilst maintaining always a certain level of tension. Unlike polyolefins, reinforced PVC geomembranes are not affected by this permanent tension and remain stable throughout the project design life. The system is then completed with vents to drain accumulated gases, access traps to allow for inspections, pumps to evacuate the rain, etc. The cover can be installed whilst the reservoir is in operation.

    Floating covers are mainly used in drinking water, irrigation and industrial applications, due to the following benefits:

    • Reduction of losses due to evaporation
    • Protection against contamination by dirt and other atmospheric agents
    • Control of liquid composition, avoiding interaction with rain
    • Prevention of gas and odour diffusion
    • Control of water temperature and blocking of sunlight

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    Brochures

    Download iconWaterproofing floating covers
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    Technical datasheets

    Download iconRENOLIT ALKORPLAN 00312 TD
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    266 кБ
    Download iconRENOLIT ALKORPLAN 00414 TD
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    257 кБ
    Download iconRENOLIT ALKORPLAN 00418 TD
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    258 кБ
    Download iconRENOLIT ALKORPLAN 02329 TD
    application/pdf Document (pdf)
    292 кБ
    Download iconRENOLIT ALKORPLAN 35038 TD
    application/pdf Document (pdf)
    242 кБ
    Download iconRENOLIT ALKORPLAN 35052 TD
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    259 кБ
    Download iconRENOLIT ALKORPLAN 35152 TD
    application/pdf Document (pdf)
    259 кБ
    Download iconRENOLIT ALKORPLAN 35052 Spec TD
    application/pdf Document (pdf)
    372 кБ
    Download iconRENOLIT ALKORPLAN 35053 TD
    application/pdf Document (pdf)
    259 кБ
    Download iconRENOLIT ALKORPLAN 35054 TD
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    254 кБ
    Download iconRENOLIT ALKORPLAN 35254 TD
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    247 кБ
    Download iconRENOLIT ALKORPLAN 35554 - test
    application/pdf Document (pdf)
    271 кБ

    DOP

    Download iconDOP 004130713
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    58 кБ
    Download iconDOP 004140713
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    58 кБ
    Download iconDOP 004210713
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    58 кБ
    Download iconDOP 004350713
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    58 кБ
    Download iconDOP 005210713
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    58 кБ
    Download iconDOP 023290713
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    58 кБ
    Download iconDOP 023390713
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    57 кБ
    Download iconDOP 350520713
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    58 кБ
    Download iconDOP 350530713
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    58 кБ
    Download iconDOP 350540713
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    57 кБ
    Download iconDOP 351520713
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    58 кБ
    Download iconDOP 352540713
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    58 кБ
    Download iconDOP 355540713
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    58 кБ

    Specifications

    Download iconSpecification floating covers
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    General downloads & certificates

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    PDF IconISO 9001 2017-2020 EN
    PDF iconDocument (pdf)
    260 кБ
    PDF IconISO 14001 2017-2020 EN
    PDF iconDocument (pdf)
    269 кБ
    PDF IconCertificate of conformity membranes
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    265 кБ
    PDF IconCertificate of conformity polymeric geosynthetic layer
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