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Residential & Domestic Fire Sprinklers - RAD Fire Spinklers Ltd.

Which AD part B relaxations?

What AD part B relaxations could residential fire sprinkler system afford?

  • Limited access for a fire tender: This is probably the most common use of a residential fire sprinkler system as the 10 minute minimum run duration for the system provides extra time for Fire Crews to extend their hoses prior to tackling the fire which helps to satisfy Building regulation Approved Document part B.
  • Open stairways: where a stairwell from a newly converted loft discharges into an open plan lounge there is often a requirement for a protected means of escape by constructing  a stud wall from the foot of the staircase to the front or rear door of the premises. A residential fire sprinkler system can normally satisfy AD part B of the Building Regulations.
  • Alternative means of escape: where the occupied space is more then7.5M high
  • Compartmentation between different purpose groups: fire resistance between shops and flats above them can be reduced by utilizing a fire sprinkler system.
  • Inner rooms. NHBC sponsored Research has concluded that : open plan flats with a sprinkler system (in accordance with BS 9251 or BS EN 12845,13 as appropriate) and an enhanced detection system (LD1 system in accordance with BS 5839-63) can provide a level of safety that is at least as good as that of a similar AD B compliant design.
BASFA - FIRAS - UKAS - RSA - National Fire Accreditations

Our Services Cover London & The South East


RAD Fire Spinklers Ltd.
58A St John's Road
Tunbridge Wells, TN4 9NY

Mon – Fri: 9AM – 6PM

Tel: 01892 680 090

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Fire Sprinkler Cost Guide

RAD Fire Sprinklers have written a costing guide designed to give you enough understanding to calculate the costs for your residential fire spinkler installation. Feel free to enter your details below and we will email our PDF guide to you straight away.
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