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The conventional method of installing fire rated system requires multiple and sophisticated steps. Installation of the conventional method is viable only after hanging the substrates, this make the conventional method not possible in adopting the pre-fabrication process.
Furthermore, installation of conventional method is done at high level, which is non-ergonomic resulting lesser output due to fatigue and at the same time having higher safety risk due to higher exposure time working at high level.
SHIELD+ system substantially departs from the conventional concept and it is design to provide a solution for pre-fabrication of the fire rated system, which is moving alongside the direction of innovative and high productivity.
SHIELD+ system is design in a way to eliminate complex installation steps without compromising the performance of the system. Installation is simplified to be faster, more productive and with ease.
SHIELD+ system has superficially thin profile which helps to ease congested MEP space installation and reduce ceiling clearance height issue.
Weatherproof application is just a few steps by incorporating SHIELD+ proprietary product model IDEAL SEAL 168, which is a thin layer of adhesive backed aluminum jacketing tape.
IDEAL SEAL 168 having a state of the art technology of Pressure-sensitive adhesive, which is a type of non reactive adhesive and forms a bond when pressure is applied to bond the adhesive with a surface. This greatly facilitate any instance of relocating the tape due to amiss placement.
The product has zero % water permeability factor which help to prevent water from penetrating into the material, fortifying the system to become hydrophobic.
PERFORMANCE CRITERIA: BS476 PART 24 : 1987
The tested duct assembly is judged against three performance criteria as follows:
STABILITY:
Stability failure shall be deemed to have occurred in Duct A within the furnace and in Duct A and Duct B outside the furnace when the duct collapses in such a manner that the duct no longer fulfils its intended function. Included in this is the ability of a smoke extract duct to retain at least 75% of its cross-sectional area.
INTEGRITY:
The presence and formation in the test specimen of cracks, holes or other openings outside the furnace through which the flames or hot gases can pass shall constitute integrity failure.
INSULATION:
Insulation failure shall be deemed to have occurred when temperature rise above initial ambient temperature in the laboratory on the unexposed surface of the test specimen outside the furnace exceeds either;
140 °C as an average value
180 °C as a maximum value read by any surface thermocouple
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