N T I ALRO•FO

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Reflecta-Cell Plus™

O•FSRRETHERMAL & SOUND INSULATIONTIALRNDET IARESI DEN

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INSTALLGUIDEOO

FS • F OR RESICORRECT INSTALLATION METHODFOR RESIDENTIAL ROOFS

STEP 4	Roof sheeting can then be installed by screwing
through the GI Building Sciences™ product to thesteel purlins or timber roof structure.

Correct Installation of Insulation
Like all other building products, insulation performs bestwhen it is installed correctly. It is possible to install any ofthe Reflecta-Range™ products over roof battens, however
the ABCB condensation handbook clearly recommends
that condensation management is best provided when theroof and insulation are separated. Installation requires anattention to detail to ensure compliance with Building Coderequirements and to effectively manage condensation.

VAPOUR CONTROL MEMBRANE

Once you have chosen the suitable GI Building Sciences™
Reflecta-Range™ product (Reflecta-Guard Plus™, ReflectaCell Plus™, Reflecta-Shield Plus™) for your project, simply
follow the instructions below.

If the product is installed and used as a vapour control
membrane, Class 1 or Class 2, or as an air barrier, it shall be
continuously sealed at all discontinuities, end laps, joints
and penetrations by•

A pressure sensitive, heat and moisture resistant tape;•

Adhesive of equal or greater vapour resistance thanthe vapour control membrane;•Heat and moisture resistant adhesive tape;•Mechanical fixing with adhesive sealant; or•Adhesive bond.

STEP 1	Having provided appropriate fall arrest to thebuilding roll out the Reflecta-Range™ productacross the top of timber trusses and install roofbattens to permanently fix, or where decided fix
roof battens to trusses and roll over roof battens.
STEP 2	Allow a sag to achieve a nominal air space of
40mm between the product and roof sheeting.
STEP 3	Roll out the next roll of Insulation overlapping
by no less than 150mm. For the best seal forcondensation management a 72 mm wide(or greater) reinforced aluminium tape to join.
Alternatively, a 24-48mm wide double sided cloth
tape can be used to provide a concealed adhesion
between the overlap.

Products are to be stored standing upright and on pallets not more than two high. Product warranty is voided for any productstored horizontally resulting in squeeze or crush. Returns of product displaying effects of deformation due to incorrect
storage practices will not be accepted.
The product information included in this publication is provided in good faith in order to ensure the optimum performanceof this product. However, no warranty is given or implied with respect to this information or the product itself regarding theproduct’s suitability for any particular purpose, as factors outside our knowledge and control may affect its use. The usageof this and other building membranes will affect moisture migration in the building element. The purchaser is responsible forindependently determining the sustainability of the product for the intended purpose. GI Building Services Pty Ltd reserves
the right to amend product specifications without prior notice. Information provided is considered to be true and correct at
the time of publication.

Issued July 2022

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