Vent grilles – ventilation grilles for the lid and frame
In the valve grilles product group, you will find ventilation and penetration protection grilles in several sizes and materials: a black plastic valve grille (100x200mm and 85x85mm), a stainless steel grille (326x114mm and round 102mm), a Roca stainless steel penetration protection cap (52x57mm) and a plastic valve grille for a 3" hose.
A vent grille protects the ventilation opening or penetration from splash water and mechanical damage while allowing air to flow freely – the grille is important for example in the ventilation of the engine compartment, battery compartment or cold room, where constant ventilation prevents the accumulation of moisture and gases in a closed space. The RST material is more resistant to salt water than painted steel and retains its appearance longer.
Choose the size and material of the grate according to the installation location and visibility - for a visible location on the lid, stainless steel is often a neater and more durable choice, while for a less visible, internal installation location, a cheaper plastic model may suffice. Always check the diameter of the conduit or hose before ordering so that the grate fits directly in place without additional adapters.
The choice of material for the vent grille affects both durability and appearance – a stainless steel model (for example 326x114mm or round 102mm) is suitable for visible locations on the deck, while a black plastic grille is a more affordable option for less visible or internal installation locations, for example for engine room ventilation. Roca's stainless steel penetration protection cap (52x57mm) also protects the penetration pipe itself from mechanical damage.
The function of the grille is to allow air to pass through freely but to prevent larger debris, insects or accidental splashing water from entering – this is especially important when ventilating the battery compartment or fuel tank, where the escape of gases is essential for safety. Check the grille attachment regularly, as a loose grille will leave the opening unprotected.
Installing a vent grille is usually a simple do-it-yourself job that does not require special tools – however, always ensure the exact diameter of the penetration or hole before ordering so that the grille fits tightly in place without additional fittings or gaps around the edges.
The color and design of the grille can also be chosen according to the appearance of the boat, as most models are available in white, black and stainless steel.
It is worth choosing the method of fastening the grille (screw or glue) according to the material of the installation surface — screw fastening is more stable for long-term outdoor use.
It is worth ensuring the compatibility of the grate size and the installation location by measuring the installation opening accurately before ordering, so that additional fittings are not needed.