Grilles & Louvres

Quick Facts – Grilles & Louvres for Ventilation

• Category: Grilles and louvres for ventilation systems
• Product types: Wall grilles, roof grilles, louvred grilles, damper grilles and insect screens
• Material: Aluminium, galvanised steel and plastic (ABS/PVC)
• Function: Air intake, air exhaust, weather protection and insect protection on duct openings
• Installation: Wall, roof, facade and duct connection
• Target audience: Ventilation installers, property managers, building contractors and industrial technicians

The Grilles & Louvres category at Verktygsgrossen offers components for air intake and air exhaust in ventilation systems. The range includes wall grilles for facade mounting, roof grilles for penetrations, louvred grilles with angled blades that protect against rain and snow, and insect screens that prevent pests from entering the duct system.

Choosing the right grille or louvre ensures correct airflow while protecting the system from weather, dirt and pests. Product selection depends on mounting location, duct dimensions and whether the air is being drawn in, exhausted, or simply needs protection from precipitation.

What is the difference between a grille and a louvre, and which type suits which use?

A grille is a fixed opening with straight bars or a mesh structure, suitable for both air intake and exhaust where weather protection is not critical – for example internal walls or sheltered facades. A louvre has angled blades pointing downward, designed to let air in while keeping rain and snow out. Louvres are therefore mainly used on exposed facades and at roof penetrations where the product is directly exposed to weather.

Damper grilles combine a grille with an adjustable or closable damper, allowing airflow to be regulated or fully shut off manually or via motor – commonly used for seasonal shutdown of fresh air intakes.

What environments are grilles and louvres suitable for?

Wall grilles and louvres are used for facade mounting on residential buildings, industrial premises and commercial properties where ventilation ducts open to outdoor air. Roof grilles are installed at roof penetrations for extract or supply air. Insect screens often complement both wall and roof grilles in environments close to ground level, gardens or agricultural buildings where insects would otherwise enter the duct system.

Suitable for: Ventilation installers, property managers, building contractors, plumbing installers and industrial technicians who install or maintain ventilation systems.

Industries: Ventilation industry, property management, construction, industrial maintenance and agricultural facilities.

Frequently Asked Questions (FAQ)

What material should you choose for wall grilles in exposed weather conditions at Verktygsgrossen?

For facades exposed to rain, snow and strong UV radiation, aluminium grilles and louvres are recommended, as the material is corrosion resistant and withstands Nordic climate over time without rusting. Galvanised steel is a more durable but heavier alternative for industrial applications, while plastic grilles are best suited to sheltered indoor environments.

Do all wall and roof grilles from Verktygsgrossen need to be fitted with insect screens?

No, it depends on the mounting location. Facade grilles near ground level, gardens or agricultural environments should be fitted with insect screens to prevent insects from entering the duct system. Roof grilles positioned high on buildings often carry lower risk but may still require screens in areas with high insect activity.

Can damper grilles from Verktygsgrossen fully shut off airflow for seasonal shutdown?

Yes, damper grilles with a manual or motorised damper can be fully closed to block airflow, commonly used for seasonal shutdown of fresh air intakes during winter to reduce heat loss. Check that the damper's sealing class matches the requirement for the specific installation before mounting.

What is the difference between louvred grilles and standard wall grilles at Verktygsgrossen?

Louvred grilles have angled blades pointing downward that let air in while keeping rain and snow out – designed for exposed facades and roof penetrations. Standard wall grilles have straight bars or a mesh structure and provide free airflow but lack the same weather protection. Choose a louvre where the product is directly exposed to precipitation, and a standard grille in more sheltered locations.