ASTROFLAME INTUMESCENT DUCT WRAP
Trade Name ASTRO DUCT WRAP 

Introduction

The purpose of this document is to give guidance to approved contractors and suppliers who are engaged in the fire stopping of service penetrations in fire rated structures using the Astro Duct Wrap
All service holes through floors and compartment walls must be fire stopped to prevent the passage of fire, smoke and hot gases.

Prevent the spread of fire, smoke and hot gases through a building by containing it in the compartment of origin.

Maintain the integrity of escape routes from a building.
Reduce loss or damage to property from the effect of fire and smoke.
Maintain pressure differential between compartments and ventilation channels

THE ASTRO DUCT WRAP SYSTEM

Flexible strips of high performance intumescent material encapsulated in a polythene sleeve - designed for wrapping around plastic pipes that pass through masonry floors and walls. On exposure to fire the wrap expands rapidly inwards to squeeze the collapsing plastic pipe until the aperture is completely sealed.
The Duct Wraps have been independently tested in accordance with BS476: Part 20: 1987 and can provide up to 2 hours fire resistance.

Installation

ASTROflame Duct Wraps are economical, easy to fit and are unaffected by moisture, humidity or frost. However, care should be taken so as to avoid damaging the outer polythene.

The Intumescent Duct Wrap is designed for wrapping around UPVC Ducting that pass through masonry floors and walls.Manufactured to the correct length to suit the relevant duct size.

Ensure that there is adequate annular space between the plastic duct and the concrete floor or wall to allow for the astro duct wrap thickness and sufficient astro fr mortar to cast in place

Push the duct wrap into the void so that the bottom edge is flush with the soffit (underside of the concrete floor) or flush with the wall surface, wrap the Astro Duct Wrap tightly around the duct and secure with the self-adhesive tape attached: it is important for the proper functioning of the wrap that the edge is exposed to view.Fill the annular gap with Astro FR Mortar and finish the floor or wall surface to suit the rest of the surroundings. Maintain records of installation for future record.

IMPORTANT The polythene sleeve is sealed in the factory with the correct amount of intumescent material to suit the relevant pipe sizes, and should not be removed. These products must be cast in situ, and as such are not suitable for use in timber floor constructions, metal or timber stud walls, or any other 'hollow' construction, where the use of an ASTROFLAME astro pipe collar is recommended

Compliance

Astro Duct Wraps are manufactured in the EU, meeting the highest quality standard in compliance with ISO EN 9001:2000 . For fire test certification contact Astroflame Fireseals technical department.

Fire Test and Assessment Reports

LANTAC Building Control Approval.
NHBC Type Approval.

Storage and disposal

As part of our policy of ongoing improvements, we reserve the right to modify, alter or change product specifications without giving notice. Product illustrations are representations only. All information contained in this document is provided for guidance only, and as ASTROFLAME FIRESEALS LTD has no control over the installation methods of the products, or of the prevailing site conditions, no warranties expressed or implied are intended to be given as to the actual performance of the products mentioned or referred to, and no liability whatsoever will be accepted for any loss, damage or injury arising from the use of the information given of products mentioned or referred to herein.

TOP OF PAGE