Roof ventilation outlets

Roof Ventilation Outlets: Reliability and Custom Solutions

Roof ventilation outlets are not just aesthetic caps; they are critically important engineered nodes that ensure the longevity of the roof and a healthy indoor climate. The correct choice and sealing of the penetration unit affect: the absence of condensation, protection of insulation from moisture, and the prevention of mould growth in the attic space.

SIA "Akvilon" offers CE-certified ventilation outlets, chimney cowls, deflectors, and a full range of duct fittings for ventilation systems. In addition to the standard assortment, we also provide the possibility of manufacturing custom elements from metal precisely according to the client's dimensions and sketches. We guarantee fast delivery of both standard and individually designed products.

Our Key Advantages and Quality Assurance

• Full Stock Availability: A wide selection of standard roof outlets, chimney cowls, and duct fittings is always available in our warehouse in Riga, ensuring prompt delivery.
• Custom Manufacturing: We produce any fittings and ventilation outlets based on individual customer drawings and dimensions, ensuring short lead times.
• European CE Certification: Our products comply with strict European standards, confirming their reliability, quality, and legality of use.
• Material Choice: Standard products are made from steel, but custom solutions are available in stainless steel (for aggressive environments) and aluminium, as well as powder coating in any colour.
• Structural Integrity: Our products are designed for high wind (up to 51 m/s) and snow loads in accordance with EN 1991 standards.
• Individual B2B Conditions: Flexible pricing system and logistical support for large projects and regular clients.

Standard Assortment of Roof Ventilation Solutions

We offer comprehensive solutions for organising extraction ducts and air exchange systems on any roof type:

• Ventilation Outlet with Cap — a classic element for protection against precipitation.
• Roof Penetration Unit — a sealed unit for the passage of the ventilation pipe through the roof (also known as a Sheet Metal Roof Box).
• Deflector and Confusor — static elements for boosting natural draft.
• Rotating Deflector — actively uses wind power to increase extraction efficiency.
• Cap / Chimney Cowl — a protective cover, often used for aesthetic purposes.
• Roof Aerator — for ventilating the under-roof or attic space.
• Side Exhaust — for horizontal air discharge (where specific requirements apply).
• Roof Fan Outlet Box — the base for mounting active roof fans.
• Custom Ventilation Outlets — solutions manufactured to individual order.

Duct Fittings for Air Ducts

To create a full ventilation system, we manufacture a complete range of duct fittings, including **ventilation boxes** (bends, tees, reducers, caps) for circular and rectangular air ducts. We work with precision that complies with European standards EN 1506 and EN 1505.

• Circular Cross-Section: Diameters D from 100 mm to 1250 mm.
• Rectangular Cross-Section: Dimensions A x B from 100 x 100 mm to 2000 x 2000 mm.

Technical Features of Production and Materials

Our production facility is equipped with modern machinery, allowing us to quickly respond to market needs and manufacture both standard and unique duct fittings and roof outlets.

Materials and Corrosion Protection

The primary material is high-quality galvanized steel, ensuring durability and corrosion resistance in most climate conditions. For sites requiring enhanced resistance to chemically aggressive environments (industry, laboratories, kitchens), we offer:

• Stainless Steel: Ideal for use in high humidity and contact with aggressive vapours.
• Aluminium: Used where minimal structural weight is important.
• Powder Coating: Provides additional protection against external factors and allows for harmonious integration of the ventilation outlet into the roof design (coating according to the RAL catalogue).

Custom Solutions — Our Capability

Unlike suppliers of standard solutions, Akvilon can manufacture any element required for your project, including:

• Roof penetrations with non-standard slope angles or complex profiles.
• Large-scale deflectors and caps for powerful industrial systems.
• Complex fittings with precise adherence to all geometric parameters specified in your drawings.

Quality and Compliance with European Standards

All ventilation outlets and fittings supplied by Akvilon bear the CE mark, confirming their full compliance with the essential EU requirements for safety, health, and environment. Our manufacturing processes are certified and comply with the following European norms:

• EN 1506 and EN 1505: Standards defining the dimensions and tolerances for circular and rectangular metal air ducts and fittings.
• Waterproofing Class A 100%: Our roof penetrations ensure reliable protection against precipitation, which is critically important for preventing leaks.

Structural Integrity: Wind and Snow Loads

Roof ventilation elements are exposed structures subject to significant climatic impacts. When designing and selecting materials, we rely on the norms set out in the European standard EN 1991 (Eurocode 1):

Important: For large or high-performance outlets, we recommend using an installation curb (or flashing upstand) at least 150 mm high above the finished roof surface, which is necessary for reliable sealing and protection against standing water.

Need a Consultation on Custom Elements?

Our engineers are ready to quickly calculate the cost and lead time for manufacturing ventilation outlets and fittings according to your drawings. We guarantee precision and high quality of execution.