House Of Multiple Occupancy (HMO)

HMO’s and high-rise flats house multiple different people and families at once, increasing the headcount in one building. With so many people in a property at once, there is higher usage of electronics, more cooking being done than the average home, and can be devastating to many in the event of a fire. 

The installation of a fire suppression system can ensure the property is efficiently protected in the event of a fire, to assist with the evacuation of all inhabitants of the property. With a higher chance of fire risks within HMO’s, high-rise flats and apartments, it’s vital to ensure the safety of all those inside the property.

When a fire starts in one room in a high-rise flat, it can spread across various rooms if they’re not effectively covered and destroy the lives of multiple families. The addition of a fire suppression system, such as iMist can assist with suppressing fires before they grow too large and spread. This in itself can give the residents in a block of flats time to evacuate the building and will not cause further damage to surrounded properties, through water damage.

Do you have HMOs, high-rise flats or apartments you would like us to quote for free?

hmo case study Islington sqaure london, imist fire suppression system

When do I need a fire suppression system in a HMO?

BSI 9991 says you must have an AWFSS in the following circumstances;

5.2.1.2 Multi-Basement Buildings

For dwellings with multiple floors below ground level, a protected stairway, and an AWFSS, 9m meters should not be exceeded for from the foot of the protected stair to any habitable room

6.4 (b) Dwelling Houses with one or more storey greater than 7.5m in height (4 storeys)

A second, separate protected stairwell is not required if AWFSS is fitted throughout.

9.1 (d) Internal Planning of Flats and Maisonettes

Flats or maisonettes with an open plan arrangement and more than one floor should have a protected stairway and AWFSS fitted. This allows escape to the shared external entrance. 

9.7 Open Plan Layouts

Open planned flats are permissible with a fully fitted AWFSS

23.3 Travel Distances

If an AWFSS is fitted throughout a block of flats, then travel distances can be doubled on common escape from 7.5m to 15m and 30m to 60m.

9.3 (b) Provision of inner rooms in flats not more than 4.5m in height

Inner rooms are not suggested unless the use of an AWFSS is utilised throughout the entire building, along with a grade D LD1 Fire detections and fire alarm system in accordance with BS 5839-6:2013.

9.4.2 (a) Extended travel distances within an open-plan flat

Flats more than 4.5m above ground level that are entered on the same level can increase total travel distances to the entrances from 9m to 20m with the use of AWFSS throughout the entire building, along with a LD1 fire detection and fire alarm system in accordance with BS 5839-6:2013.

11.1 Flats where occupants are not capable of independent evacuation

It is possible to use provisions o an AWFSS where the use of the building is required for people not capable of independent evacuation (excluding common corridors and stairways). It is further possible to protect common areas (excluding common corridors and stairways) using provisions of an AWFSS where the use of the building is required for people not capable of independent evacuation.

HMO Case Studies

Bleriot Gate – Surrey

At Surrey, we have a well-known partnership with Bleriot Gate. Our iMist engineers installed 1,111 nozzles as part of the iMist system. It is now classed as a compensatory measure in order to offer the end-user open plan living. 

Great Peters Street – London

This building, just a stone’s throw from the Houses of Parliament, holds high-end apartments. The iMist system was installed for numerous reasons, allowing the client to offer the guests a safe large open living area.

Rowntree Wharf – York

This structure is a beautiful piece of traditional architecture in York. Due to its unique location, the request was for the iMist system to be installed throughout all the residential flats with one dual residential pump.

HMO Case Studies

In an industry that requires the highest standard of installation, this is the company for you. I can't speak highly enough of them! They have been incredibly understanding throughout the project, and they have helped us with many questions and problems we have from other construction companies.
I can't stress to anyone reading this enough that you must be careful with companies in this market as there are many who are corrupt, but in I-Mist you are in safe hands!
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