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Next Day Delivery on Stock Items

Order Helpline 01706 335330

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Next Day Delivery on Stock Items

Order Helpline 01706 335330

Systemair RAW Roof Cowl 300/315

Name: Systemair RAW Roof Cowl 300/315
Brand: Ducting Supplies
Price: 560.12 GBP
Availability: InStock

£560.12 (ex VAT)

Shipping calculated at checkout.

Product variants

Quantity

Collection available from Ducting Supplies. Please contact us before collection to confirm stock availability and when your order will be ready.

Usually ready in 24 hours

PRODUCT INFORMATION

Systemair RAW Horizontal Discharge Roof Cowl 300 / 315 – GRP Weatherproof Roof Terminal

The Systemair RAW Horizontal Discharge Roof Cowl 300 / 315 is a heavy-duty roof ventilation terminal manufactured from UV-stabilised glass reinforced polyester (GRP), delivering excellent corrosion resistance, low weight, and outstanding durability in exposed outdoor environments.

Designed for commercial and industrial applications, this horizontal discharge roof cowl can be installed as a passive terminal or paired with a Systemair AW plate axial fan to create a powered extract or supply ventilation system. It is suitable for installation on flat roofs or pitched roofs up to 30°, making it a versatile solution for a wide range of building types.

✅ Key Features & Benefits

UV-Stabilised GRP Construction – Corrosion-free, lightweight and built for external use
Horizontal Air Discharge – Directs airflow efficiently away from the roof
Flat & Pitched Roof Compatible – Suitable for roof pitches up to 30°
Bird Guard Included – Prevents debris and wildlife ingress as standard
Terminal or Powered Option – Use alone or combine with an axial fan
Architectural Colour Options – BS or RAL colours available on request
Trusted Manufacturer – Systemair quality with 1-year warranty

🏭 Suitable Applications

Ideal for:

Factory and warehouse ventilation
Commercial kitchens
Schools and colleges
Leisure centres and sports halls
Plant rooms
General extract or supply systems

⚙️ Installation Options

The RAW 300 / 315 roof cowl may be installed:

As a stand-alone roof terminal, or
In conjunction with a Systemair AW plate axial fan to form a powered ventilation unit.

It can be mounted on:

Flat roofs
Pitched roofs up to 30°

🔧 Optional Accessories

Compatible accessories include:

Back Draught Shutter – Provides an airtight seal when the fan is not running
Purlin Box – Creates a secure roof upstand for mounting
Soaker Sheet – Matches existing roof profiles for a weathertight finish

🎨 Finish & Colour Options

Supplied as standard in BS 00 A 05 Goosewing Grey.

Alternative finishes in any BS or RAL colour are available at additional cost—ideal for project-specific or architectural requirements.

📊 Technical Specifications

Specification	Detail
Brand	Systemair
Mounting	Roof Mounted
Construction	UV-Stabilised GRP
Colour	Goosewing Grey (Standard)
Warranty	1 Year Manufacturer
Bird Guard	Included
Weight	6.5 kg
Dimensions (H × W × D)	340 mm × (520 / 555 mm) × (520 / 555 mm)
Base Size	520 / 555 mm Square
Applications	Factories, Schools, Kitchens, Leisure

📄 Manuals & Guides

Systemair RAW Roof Cowl 300 / 315 Installation Manual

🚀 Why Choose the Systemair RAW 300 / 315 Roof Cowl?

If you’re searching for a commercial roof ventilation cowl, GRP roof terminal for axial fans, or a weatherproof horizontal discharge roof vent, the RAW 300 / 315 delivers proven performance, installation flexibility, and long-term reliability from one of Europe’s leading ventilation manufacturers.

Delivery & Collection

Next Day Delivery
Stock items ordered before 1pm can be dispatched on a next working day delivery service, subject to stock availability and carrier service. Delivery charges are calculated at checkout.

Collection Available
Orders can be collected from our Haslingden, Lancashire warehouse. Please contact us before travelling to confirm your order is ready for collection.

Downloads & Technical Documents

↓ Product Data Sheet Technical specifications, performance data and product information. DOWNLOAD DATA SHEET →