34.0073
Frost Aluminium Cold Roof drain assembly - fixed anti-vortex dome 220mm circular, medium sump body with clamp, vertical threaded outlet 3" BSP
ONLY
£ 119 . 19
Excl. VAT
ONLY
£ 143 . 02
Inc. VAT
34.0104
Frost Aluminium Warm Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical threaded outlet 4" BSP
ONLY
£ 298 . 26
Excl. VAT
ONLY
£ 357 . 91
Inc. VAT
34.0124
Frost Aluminium Warm Roof drain assembly - fixed anti-vortex dome 220mm circular, medium sump body with clamp, vertical threaded outlet 4" BSP
ONLY
£ 285 . 60
Excl. VAT
ONLY
£ 342 . 72
Inc. VAT
34.0133
Frost Aluminium Warm Roof drain assembly - fixed anti-vortex dome 220mm circular, medium sump body with clamp, vertical threaded outlet 3" BSP
ONLY
£ 209 . 78
Excl. VAT
ONLY
£ 251 . 73
Inc. VAT
34.0141
Frost Aluminium Inverted Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical 200mm spigot outlet 100mm dia
ONLY
£ 231 . 71
Excl. VAT
ONLY
£ 278 . 05
Inc. VAT
34.0147
Frost Aluminium Inverted Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical 200mm spigot outlet 75mm dia
ONLY
£ 180 . 16
Excl. VAT
ONLY
£ 216 . 19
Inc. VAT
34.0161
Frost Aluminium Warm Roof drain assembly - fixed anti-vortex dome 220mm circular, medium sump body with clamp, vertical 200mm spigot outlet 100mm dia
ONLY
£ 285 . 60
Excl. VAT
ONLY
£ 342 . 72
Inc. VAT
34.0167
Frost Aluminium Warm Roof drain assembly - fixed anti-vortex dome 220mm circular, medium sump body with clamp, vertical 200mm spigot outlet 75mm dia
ONLY
£ 209 . 78
Excl. VAT
ONLY
£ 251 . 73
Inc. VAT
34.0181
Frost Aluminium Warm Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical 200mm spigot outlet 100mm dia
ONLY
£ 298 . 26
Excl. VAT
ONLY
£ 357 . 91
Inc. VAT
34.0201
Frost Aluminium Cold Roof drain assembly - fixed anti-vortex dome 220mm circular, medium sump body with clamp, vertical 200mm spigot outlet 100mm dia
ONLY
£ 169 . 62
Excl. VAT
ONLY
£ 203 . 54
Inc. VAT
34.0207
Frost Aluminium Cold Roof drain assembly - fixed anti-vortex dome 220mm circular, medium sump body with clamp, vertical 200mm spigot outlet 75mm dia
ONLY
£ 119 . 19
Excl. VAT
ONLY
£ 143 . 02
Inc. VAT
34.0217
Frost Aluminium Warm Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical 400mm spigot outlet 75mm dia
ONLY
£ 271 . 44
Excl. VAT
ONLY
£ 325 . 72
Inc. VAT
34.0231
Frost Aluminium Cold Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical 200mm spigot outlet 100mm dia
ONLY
£ 181 . 36
Excl. VAT
ONLY
£ 217 . 63
Inc. VAT
34.0237
Frost Aluminium Cold Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical 200mm spigot outlet 75mm dia
ONLY
£ 120 . 71
Excl. VAT
ONLY
£ 144 . 85
Inc. VAT
34.0303
Frost Aluminium Inverted Roof drain assembly - fixed anti-vortex dome 220mm, medium sump body with clamp, vertical threaded outlet 3" BSP
ONLY
£ 196 . 11
Excl. VAT
ONLY
£ 235 . 33
Inc. VAT
34.0304
Frost Aluminium Inverted Roof drain assembly - fixed anti-vortex dome 220mm, medium sump body with clamp, vertical threaded outlet 4" BSP
ONLY
£ 219 . 22
Excl. VAT
ONLY
£ 263 . 06
Inc. VAT
34.0331
Frost Aluminium Inverted Roof drain assembly - fixed anti-vortex dome 220mm, medium sump body with clamp, vertical 200mm spigot outlet 100mm dia
ONLY
£ 219 . 22
Excl. VAT
ONLY
£ 263 . 06
Inc. VAT
34.0337
Frost Aluminium Inverted Roof drain assembly - fixed anti-vortex dome 220mm, medium sump body with clamp, vertical 200mm spigot outlet 75mm dia
ONLY
£ 196 . 11
Excl. VAT
ONLY
£ 235 . 33
Inc. VAT
34.0353
Frost Aluminium Inverted Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical threaded outlet 3" BSP
ONLY
£ 180 . 16
Excl. VAT
ONLY
£ 216 . 19
Inc. VAT
34.0354
Frost Aluminium Inverted Roof drain assembly - aluminium grating, fixed 240mm circular, medium sump body with clamp, vertical threaded outlet 4" BSP
ONLY
£ 231 . 71
Excl. VAT
ONLY
£ 278 . 05
Inc. VAT
Why Choose Drainfast for Roof Drainage Products?
Drainfast supplies a comprehensive range of roof drains, balcony outlets and accessories for commercial construction projects. We partner with trusted manufacturers to provide dependable solutions for controlled rainwater removal across different roof and balcony applications. With over 20 years of drainage industry experience, our technical advisors can help you choose suitable products and coordinate roof drainage with the wider underground drainage system. Our free material take-off service can calculate the pipes, fittings, chambers, covers and accessories required.
With extensive stock across our UK depots and an in-house delivery fleet, we provide next-day delivery to eligible locations for orders placed before 5pm.
Frequently Asked Questions
What is a Roof Drain?
A roof drain is installed level with a flat roof to collect rainwater and direct it into pipework. Gratings, domes or gravel guards help prevent debris from entering the outlet.
What are Roof Drains Used For?
Roof drains remove rainwater from flat and low-slope roofs, preventing standing water and directing it into pipework. Specialist outlets are available for parapets, balconies and other specific roof drainage applications.
What Buildings are Roof Drains Suitable For?
Commercial, industrial and multi-occupancy buildings with flat or low-slope roofs commonly use roof drains. Product selection depends on the roof construction, expected flow rate, connection requirements and project specifications.
What is the Difference Between a Warm Roof Drain and a Cold Roof Drain?
A warm roof has insulation above the roof deck, while a cold roof generally has insulation below it. Each drain connects at the appropriate waterproof membrane level for that construction.
Why is Effective Roof Drainage Important?
A lack of efficient drainage can cause significant damage to a roof. It prevents standing water, which can increase structural loads and contribute to membrane deterioration, leaks, damp and internal damage. Correct specification helps direct rainwater away.
Where Does Water From a Roof Drain Go?
Water passes through rainwater pipework to a surface water sewer, harvesting system, soakaway or attenuation system, depending on the site’s drainage design and project requirements.
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