Domus Flat Duct Fire Brake

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Domus Flat Duct Fire Brake
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Domus Flat Duct Fire Brake

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Ref: FLAT-DUCT-FIRE-BREAK

From: 39.99 (Incl. VAT @ 20%)

Select A Quantity:

Domus Flat Duct Fire Brake
Domus Flat Duct Fire Brake
110mm x 55mm 48.99
205mm x 60mm 53.99
220mm x 90mm 57.99


  • For use with flat duct when a fire brake is required.
  • Meets Building Regulations and Fire Standards for the UK.
  • Quick and easy to install.
  • Does not require an additional wall frame or collars.
  • 2 Hour fire rating.
  • Suitable for MVHR heat recovery systems




It is inevitable that at some stage of your ventilation installation you will encounter a fire wall or ceiling. It is really important that the integrity of a fire wall is maintained by installing an approved fire damper. There are a few fire blocks on the market but none match the simplicity of the Domus Fire Brake as it meets all required standards and fits all sizes of flat ducting.

  • For use with flat duct when a fire brake is required.
  • Complies with Approved Document B of the Building Regulations.
  • Fire Tested to BS476/EN 1366-3.
  • Available in three sizes: 54x110mm System 100, 60x204mm Supertube and 220x90mm Megaduct.
  • Quick and easy to install.
  • Does not require an additional wall frame.
  • 2 Hour fire rating.
  • Suitable for MVHR heat recovery ventilation sysems.
  • Does not require additional fixings, saving you time and money.
  • Acts as a connector between the ducting and compartment wall.

General

Domus FireBrake is very simple to install and requires less time and without additional items generally needed during fitting, particularly in areas that are difficult to access. This is a significant advantage over traditional fire dampers that require wraps, collars or a wall frame.

Choosing a Domus fire brake not only ensures professional installation, it meets all the required fire standards and building regulations for your home. It is the correct fire stop for domestic ventilation systems and MVHR heat recovery ventilation for dwellings and houses. This rectalgular version is suitable for the three main sizes of ducting: 110x55mm, 205x60mm and 220x90mm.

In most fire stopping applications, two collars or wraps are required; one on either side, Fire Brake does not require any as ducting fits snugly either side creating the required fire break. This can provide substantial cost savings, especially in installation time. No maintenance is required.

For masonry or stud walls and concrete floors

Domus FireBrake is designed for multipurpose installations. For stud walls the steel casing (fitted as standard) ensures that the product closes inwards. The 125mm length of FireBrake is sufficient to prevent it falling through a stud wall once the duct has melted away. This is not the case with most collars. Wraps are not suitable for use within stud walls.

Robust construction

Domus FireBrake is strong enough to cope with the rigours of transportation and the hazardous environment on building sites. Its sturdy nature inspires confidence that it will be fit for purpose.

No additional fixings necessary

The Domus FireBrake does not require additional fixings, such as screws and metal anchors. This saves considerable time and money on site.

The damper forms an integral part of the ducting system as it will act as a connector between two lengths of flat ducting which means t can be incorporated as part of the ducting system design providing a seamless configuration.

Designed to put safety first

Domus FireBrake helps prevent careless installation. This is a common problem with wraps and collars as they are difficult to work with. Careless installation can result in failure under fire conditions.

Why they are needed

The spread of fire throughout a home is a serious concern for all new build developments. To prevent such occurrences from happening, Building Regulations require that when a compartment wall is penetrated by ducting, an approved fire-stopping device should be installed.

Typical examples where a fire break should be is used is garage walls, flats and three story houses to maintain the integrity of existing fire walls and ceiling..

How they work

Domus FireBrake connectors contain the spread of fire within the duct system for up to two hours by reacting to the heat and expanding inwards, very quickly providing a 100% closed fire seal.

Masonry Walls and Concrete Floors

FireBrake connectors are suitable for use in masonry walls and concrete floors of up to 150mm in thickness to provide up to and including 2 hours of fire protection (fig. 1).

For installations in masonry walls or floors of thickness greater than 150mm, two close-coupled FireBrakes of ducting (fig. 2).
image

Stud Walls

FireBrakes are also suitable for use in stud walls of up to a maximum of 125mm thick (fig. 3c). The rugged steel casing contains the expansion of the intumescent when a FireBrake is installed in a stud wall.

It is imperative that the FireBrake is firmly supported on its underside by a noggin or similar structural cross-member (fig. 3a & 3c). Otherwise the general installation guidelines apply.

image

Important

Do not reduce or cut the length of the FireBrake as this will have a detrimental effect on the performance of the product.

Domus FireBrake is not suitable for use with metal ducting.

General Installation Guidelines

A. Position the FireBrake connector evenly within the fabric of the compartment wall to provide a firm support for the ducting. If it is necessary to position the FireBrake unevenly within a masonry wall, for example, when making an immediate right-angled bend in the duct system, ensure that a minimum of 75mm of the FireBrake length is contained within the fabric of the wall (fig.4). Note the constraints of point B.

B. Important - Ensure that the ends of the FireBrake remain visible, this allows both rapid activation of the intumescent in the event of a fire and also provides Building Control with easy access for identification for either auditing or fire risk assessment purposes. Removal of the outer label is unnecessary.

C. There must be no more than a 12mm void in the fabric of the wall around any one side of the FireBrake. Gaps and voids in excess of 12mm should be made good with cement or mortar.

D. Gaps around FireBrake of up to 12mm should be made good with Domus MAS87 acoustic intumescent mastic to provide both a complete smoke seal and a reduction in sound transmission through the duct system (fig.5).

E. The ducting can now be fitted to the FireBrake connector.

image





It is inevitable that at some stage of your ventilation that you will encounter a fire wall or ceiling and it is really important that the integrity of a fire wall is maintained by installing an approved fire damper. There are a few fire blocks on the market but none match the simplicity of the Domus Fire Brake as it meets all required standards and fits all sizes of flat ducting.
Domus
Manufactured by: Polypipe
Model: FireBrake
Product ID: FIRE-STOP
4 based on 10 reviews
29.99 New


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