Biogas storage from Cogatec - Efficient storage solutions for biogas
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Ross Murray
Calver Road Winwick Quay
WA2 8LT Cheshire
United Kingdom

Cogatec Weatherproof Silo Covers

Tank cover for the reduction of emissions

The Cogatec Weatherproof Silo Covers with central column and the self supporting Silo Cover were developed to reduce emissions generated in the tank and to reduce water entry into the tank. The roof construction for slurry tanks made of concrete or steel reduces emissions of gas and ammonia by more than 95 % and thus fulfils the high requirements for immission protection.

The weather protection roof as well as the strap system are supported by a stainless steel central support. The external bracing is carried out by means of stainless steel ratchets and high-strength tension belts. The round tube inserted into a hollow seam is braced against the outer wall of the container. The interaction of construction, high-quality materials and static design ensures a long service life and high stability of the Weatherproof Silo Covers.

HUESKER Cogatec biogas storage - Sustainable storage of biogas
Reduction of emissions
With our Weatherproof Silo Covers, ammonia emissions generated in the tank can be significantly reduced. This protects the environment and reduces odour pollution.
Stability due to biaxial pretensioning in Cogatec covers
Biaxial pre-stressed membrane
Biaxial pretensioning prevents the membrane from fluttering and reduces the leakage of emissions. In addition, the pretensioning provides increased stability in weather conditions.
Individuality and protection: Cogatec customized container covers
Customised tank covers
Depending on customer requirements, the weather protection roof can be mounted on a concrete or steel container. Service openings or shafts can also be incorporated on request, as well as individual adaptations.
Robust PVC-coated roofs for long-lasting protection
Our Weatherproof Silo Covers are produced with high-frequency welding and are made of flame-retardant PVC-coated fabric. The high tear resistance of the high-tech material makes the system resistant to the formation of tears and ensures a particularly long service life.
Effective protection, maximum storage volume with Cogatec
High storage volume
Covering your slurry tank reduces the entry of water through rain or snow. Thus, the nitrogen content and the storage capacity are maintained.
Self-supporting emission protection roof
Cleaning and assembly without emptying
Due to the product variant self-supporting emission protection roof, no complete emptying of the container has to be carried out for the installation of the self-supporting construction.

Product variants

Discover the diversity of our Weatherproof Silo Covers

Weatherproof Silo Cover with Central Column

The Cogatec Weatherproof Silo Cover covers your tank in an emission-reducing manner and in this way ensures a permanent reduction in emissions and gases produced by agriculture. The stainless steel central column used as standard also makes it possible to cover large containers with a diameter of up to 50 m. Our roof system is carefully dimensioned according to the respective location and adapted to the specific conditions.


(1) Weatherproof membrane
(2) Central column with crown
(3) Belt construction
(4) Tensioning with ratchets

    Self-supporting Weatherproof Silo Cover

    The Cogatec self-supporting Weatherproof Silo Cover convinces with its low dead weight. In this way, the slurry tank is subjected to fewer loads and installation can be carried out easily. In addition, the self-supporting construction eliminates the need for complete emptying and cleaning prior to installation. This is corrosion-resistant due to the stainless steel support used and the high-tensile straps. The roof is tensioned using our specially developed stainless steel ratchets by means of a round tube inserted into the hollow seam.


    (1) Weatherproof membrane
    (2) Self-supporting centre
    (3) Centre support crown
    (4) Belt construction
    (5) Tensioning with ratchets​​​​​​​
    (6) Abrasion protection

        Technical information

        • PVC-coated fabric, lacquered outside to reduce susceptibility to dirt

        • Tensioning with stainless steel ratchets and high-strength tensioning straps

        • Tear-resistant and UV-stable fabric

        • Stainless steel central column as standard

        • Static design according to local snow and wind loads

        Do you have any questions?

        Are you looking for quick answers to the most important questions about our emission control roofs, projects or subsidies? Find out now in our FAQ section! If you still can't find the answer you're looking for, simply contact us via our contact form!

        In various federal states, products to reduce CO² emissions are promoted. These include, for example, Weatherproof Silo Covers for covering slurry tanks. We will be happy to advise you on the current subsidies. Just give us a call or use the contact form.

        We use fabrics with fabric types II, III, IV, V. They are offered in the colour variants moss green and light grey.

        The costs for a tank cover depend on the size, the design or even the conditions on site. Please fill out the contact form and we will coordinate an appointment with you to discuss all details and submit a non-binding offer.

        For steel components, we use application-specific stainless steel (V2A and V4A). The alloy makes the stainless steel more resistant to corrosion.

        Depending on the condition of the centre column, reuse is possible. The HUESKER centre column head can be adapted to all commercially available columns so that the existing column can continue to be used.

        The installation of our roof systems depends on various factors such as the diameter or the weather. As a general rule, you can expect an installation time of about 2-5 days for an Weatherproof Silo Cover.

        Further information
        you can find here