Commercial Metal Roof Solutions

Selecting the Right Insulation for Commercial Buildings With Metal Roofs

It’s simple to select the right roof and ceiling insulation for commercial buildings by using the ready reckoner below.

Changes to legislation with an emphasis now on condensation control and the continued requirement to meet energy efficiency regulations means that choosing the right roof insulation has become even more critical.

GI Building Sciences has some world firsts in its stable of commercial roof insulation, including GI All-In-OneTM.

This remarkable product offers a safer, cleaner and easier install for commercial roofs, whilst saving up to 30 percent on the cost of installing a metal roof insulated using any of the major accredited spacer systems.

 

Selecting the right solution for you is as simple as 3 easy steps:

Step 1.  Choose the Climate Zone your project is located within. Your builder or designer may have this information, but if they don’t simply click on the link for your state and you can easily use the colour coded key to select your climate zone. NSW & ACTNTQLDSATASVICWA

Step 2. Check the Solar Absorption of your Roof by checking with the manufacturer of your roofing system or choose from the Colour Table which presents common roof colours and may serve as a guide.

Step 3. Select your Solution now that you know your Climate Zone and the Solar Absorption of your Roof, you can match this information to suit the roof and ceiling types in the systems listed below.

If you need to know more, please call us on 1300 308 165 or email us at info@gibuildingsciences.com.au

1-5 Degree Pitched Roof - with flat plasterboard ceiling

*NO SAFETY BATTENS REQUIRED

Installation recommendations

For roofs required to meet a minimum total R-value, where a ceiling is fixed directly to a metal structure

A minimum R0.2 thermal break separating should be installed between metal roof sheets and supporting metal purlins, rafters or battens.

System NumberGI Building Sciences Product(s)Summer/InwardsWinter/OutwardsThermal Break
M05SC1*GI All-In-One™ CRIS™RT 6.6RT 2.10.30
M05SC2CRIS™RT 7.3RT 2.00.20

 

  • Thermal calculations by James Fricker as per AS/NZS 4859.1&2
  • For climate Zones 7&8 please refer to your GI Architectural Specialist foralternatives

How to specify

GI All-In-One CRIS™ – The insulation to be installed under roof shall achieve an installed Summer RT 6.6 and Winter RT 2.1 in accordance with AS/NZS 4859.1&2 and a thermal break of no less than 0.30. It shall be the GI Building Sciences™ -Insulated Permanent Safety Net System known as GI All-In-One CRIS™. Tested in accordance with AS/NZS 4389 and accredited as a safety net system, the system consists of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI All-In-One™(0.20) with a proprietary core consisting of foam encapsulated safety mesh. The upper layer shall be GI Reflecta-Cell Plus™ reflective insulation containing a thermo-cellular material. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

CRIS™ – The insulation to be installed under roof shall achieve an installed Summer RT 7.3 and Winter RT 2.0 in accordance with AS/ NZS 4859.1&2 and a thermal break of no less than 0.20. The insulation to be installed under roof shall be the GI Building Sciences™CRIS™system. A system of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI Reflecta-Cell Plus™ affixed to the bottom of roof purlins. The GI Building Sciences – Insulated Permanent Safety Net System known as GI All-In-One™, tested in accordance with AS/NZS 4389 and accredited as a safety net system. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

1-5 Degree Pitched Roof - with suspended ceiling (return air)

*NO SAFETY BATTENS REQUIRED

For roofs required to meet a minimum total R value, where a ceiling is fixed direct to a metal structure, a minimum R0.2 thermal break separating should be installed between metal roof sheets and supporting metal purlins, rafters or battens.

System NumberGI Building Sciences Product(s)Summer/InwardsWinter/OutwardsThermal Break
M05SCRA1*GI All-In-One™ CRIS™RT 3.8RT 1.50.30
M05SCRA2CRIS™RT 3.8RT 1.50.20

 

  • Thermal calculations by James Fricker as per AS/NZS 4859.1&2
  • For climate Zones 7&8 please refer to your GI Architectural Specialist foralternatives

How to specify

GI All-In-One CRIS™ – The insulation to be installed under roof shall achieve an installed Summer RT 6.6 and Winter RT 2.1 in accordance with AS/NZS 4859.1&2 and a thermal break of no less than 0.30. It shall be the GI Building Sciences™ -Insulated Permanent Safety Net System known as GI All-In-One CRIS™. Tested in accordance with AS/NZS 4389 and accredited as a safety net system, the system consists of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI All-In-One™(0.20) with a proprietary core consisting of foam encapsulated safety mesh. The upper layer shall be GI Reflecta-Cell Plus™ reflective insulation containing a thermo-cellular material. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

CRIS™- The insulation to be installed under roof shall achieve an installed Summer RT 7.3 and Winter RT 2.0 in accordance with AS/ NZS 4859.1&2 and a thermal break of no less than 0.20. The insulation to be installed under roof shall be the GI Building Sciences CRIS™ system. A system of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI Reflecta-Cell Plus™ affixed to the bottom of roof purlins. The GI Building Sciences™ – Insulated Permanent Safety Net System known as GI All-In-One™, tested in accordance with AS/NZS 4389 and accredited as a safety net system. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

1-5 Degree Pitched Roof - with suspended ceiling

*NO SAFETY BATTENS REQUIRED

For roofs required to meet a minimum total R value, where a ceiling is fixed direct to a metal structure, a minimum R0.2 thermal break separating should be installed between metal roof sheets and supporting metal purlins, rafters or battens.

System NumberGI Building Sciences Product(s)Summer/InwardsWinter/OutwardsThermal Break
MOSSC3*GI All-In-One™ 0.20RT 3.9RT 1.40.20
MOSSC4Reflecta8™RT 3.9RT 1.40.20
MOSSCSReflecta-Guard Plus™RT 3.9RT 1.40.20

 

  • Thermal calculations by James Fricker as per AS/NZS 4859.1&2
  • For climate zone applications requiring higher RT values please refer to your GIAr chitectural Specialist for alternatives

How to specify

GI All-In-One CRIS™ – The insulation to be installed under roof shall achieve an installed Summer RT 6.6 and Winter RT 2.1 in accordance with AS/NZS 4859.1&2 and a thermal break of no less than 0.30. It shall be the GI Building Sciences™ -Insulated Permanent Safety Net System known as GI All-In-One CRIS™. Tested in accordance with AS/NZS 4389 and accredited as a safety net system, the system consists of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI All-In-One™(0.20) with a proprietary core consisting of foam encapsulated safety mesh. The upper layer shall be GI Reflecta-Cell Plus™ reflective insulation containing a thermo-cellular material. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

Reflecta8™  – The insulation to be installed under roof shall achieve an installed Summer RT 3.9 and Winter RT 1.4 in accordancewith AS/NZS 48S9.1&2 and a thermal break of no less than 0.20. It shall be the GI Building Sciences Reflecta8, comprising of two reinforced foil laminate external surfaces, with a centre core of foam should be installed over 2.0mm safety mesh. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS 4200.2

Reflecta-GuardPlus™– The insulation to be installed under roof shall achieve an installed Summer RT 3.9 and Winter RT 1.4 in accordance with AS/NZS 48S9.1&2 and a thermal break of no less than 0.20. It shall be the GI Building Sciences Reflecta-Guard Plus, comprising of two reinforced foil laminate external surfaces, with a centre core of 12mm thick thermo-cellular material should be installed over 2.0mm safety mesh. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZ S4200.2

1-5 Degree Pitched Roof - with no ceiling

*NO SAFETY BATTENS REQUIRED

For roofs required to meet a minimum total R value, where a ceiling is fixed direct to a metal structure, a minimum R0.2 thermal break separating should be installed between metal roof sheets and supporting metal purlins, rafters or battens.

System NumberGI Building Sciences Product(s)Summer/InwardsWinter/OutwardsThermal Break
MO5NC1*GI All-In-One CRIS™RT 3.8RT 1.50.30
MO5NC2*CRIS™RT 4.8RT 1.70.20

 

  • Thermal calculations by James Fricker as per AS/NZS 4859.1&2
  • For climate zone applications requiring higher RT values please refer to your GIAr chitectural Specialist for alternatives

How to specify

GI All-In-One CRIS™ – The insulation to be installed under roof shall achieve an installed Summer RT 6.6 and Winter RT 2.1 in accordance with AS/NZS 4859.1&2 and a thermal break of no less than 0.30. It shall be the GI Building Sciences™ -Insulated Permanent Safety Net System known as GI All-In-One CRIS™. Tested in accordance with AS/NZS 4389 and accredited as a safety net system, the system consists of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI All-In-One™(0.20) with a proprietary core consisting of foam encapsulated safety mesh. The upper layer shall be GI Reflecta-Cell Plus™ reflective insulation containing a thermo-cellular material. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

CRIS™- The insulation to be installed under roof shall achieve an installed Summer RT 7.3 and Winter RT 2.0 in accordance with AS/ NZS 4859.1&2 and a thermal break of no less than 0.20. The insulation to be installed under roof shall be the GI Building Sciences CRIS™system. A system of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI Reflecta-Cell Plus™ affixed to the bottom of roof purlins. The GI Building Sciences™ – Insulated Permanent Safety Net System known as GI All-In-One™, tested in accordance with AS/NZS 4389 and accredited as a safety net system. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

1-5 Degree Pitched Roof - ceiling direct fix to purlins or rafters

1-5 Degree Pitched Roof-Reflecta White decorative insulation direct fix

For roofs required to meet a minimum total R value, where a ceiling is fixed direct to a metal structure, a minimum R0.2 thermal break separating should be installed between metal roof sheets and supporting metal purlins, rafters or battens.

System NumberGI Building Sciences Product(s)Summer/InwardsWinter/OutwardsThermal Break
MO5DDF1GI All-In-One .20RT 3.5RT 1.40.20
MO5DDF2GI All-In-One .20 CRIS RWRT 4.4RT 1.60.30
MO5DDF3Reflecta-GuardRT 3.5RT 1.40.20

 

  • Thermal calculations by James Fricker as per AS/NZS 4859.1&2
  • For climate zone applications requiring higher RT values please refer to your GIAr chitectural Specialist for alternatives

How to specify

GI All-In-One™-The insulation to be installed under roof shall achievean in stalled Summer RT3.5 and Winter RT1.4 in accordance withAS/NZS4859.1&2 andathermal break of no less than 0.20. It shall be the GI Building Sciences-Insulated Permenant Safety Net System known as GI All-In-One™.  Tested  in accordance with AS/NZS 4389 and accredited as a  safety net system, the system consists of one layer of reflective insulation made of reinforced foil laminate external surfaces with a proprietary core consisting of foam encapsulated safety mesh. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS4200.2

GI All-In-One 0.20 CRIS RW™-The insulation to be installed under roof shall achieve an in stalled Summer RT4.4 and Winter RT1.6 in accordance with AS/NZS 4859.1&2 and a thermal break of no less than 0.30. It shall be the GI Building Sciences™- Insulated Permanent Safety Net System known as GI All-In-One™. Tested in accordance with AS/NZS 4389 and accredited as a safety net system, the system consist software effective insulators made of reinforced foil laminate external foil surfaces. The top layer shall be GI All-In-One™ (0.20) with a proprietary core consisting of an encapsulated safety mesh. The bottom layer shall be GI Reflecta-White reflective insulation containing a thermo-cellular material fixed to the underside of roof purlins. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

Reflecta-Guard Plus™– The insulation to be installed under roof shall achieve an installed Summer RT 3.9 and Winter RT 1.4 in accordancewithAS/NZS4859.1&2 and a thermal break of no less than 0.20. It shall be the GI Building Sciences™ Reflecta-Guard, comprising of two reinforced foil laminate external surfaces, with a centre core of 12mm thick thermo-cellular material should be installed over 2.0mm safety mesh. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS4200.2

6-25 Degree Pitched Roof - with suspended ceiling

*NO SAFETY MESH OR SPACERS REQUIRED

For roofs required to meet a minimum total R value, where a ceiling is fixed direct to a metal structure, a minimum R0.2 thermal break separating should be installed between metal roof sheets and supporting metal purlins, rafters or battens.

System NumberGI Building Sciences Product(s)Summer/InwardsWinter/OutwardsThermal Break
M625SC1*GI All-In-One CRIS™RT 4.2RT 2.20.30
M625SC2CRIS™RT 4.2RT 2.20.20

 

  • Thermal calculations by James Fricker as per AS/NZS 4859.1&2
  • For climate zone applications requiring higher RT values please refer to your GI Architectural Specialist for alternatives

How to specify

GI All-In-One CRIS™– The insulation to be installed under roof shall achieve an installed Summer RT 4.2 and Winter RT2.2 in accordance with AS/NZS4859.1&2 and a thermal break of no less than 0.30. It shall be the GIBuildingSciences™ Insulated Permanent Safety Net System known as GI All-In-One CRIS™ .Tested in accordance with AS/NZS 4389 and accredited as a safety net system, the system consists of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI All-In-One™ (0.20) with a proprietary core consisting of foam encapsulated safety mesh. The upper layer shall be GI Reflecta-Cell Plus™ reflective insulation containing a thermo-cellular material. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS4200.2

CRIS™– The insulation to be installed under roof shall achieve an installed Summer RT 4.2 and Winter RT 2.2 in accordance with AS/NZS4859.1&2 and a thermal break of no less than 0.20.The insulation to be installed under roof shall be the GI Building Sciences CRIS™ system. A system of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI Reflecta- Cell affixed to the bottom of roof purlins. The GI Building Sciences – Insulated Permanent Safety Net System known as All In One, tested in accordance with AS/NZS 4389 and accredited as a safety net system. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

6-25 Degree Pitched Roof - with no ceiling

*NO SAFETY MESH OR SPACERS REQUIRED

For roofs required to meet a minimum total R value, where a ceiling is fixed direct to a metal structure, a minimum R0.2 thermal break separating should be installed between metal roof sheets and supporting metal purlins, rafters or battens.

System NumberGI Building Sciences Product(s)Summer/InwardsWinter/OutwardsThermal Break
M625NC1*All-In-One CRISRT 3.4RT 2.00.30
M625NC2*CRISRT 3.4RT 2.00.20

 

  • Thermal calculations by James Fricker as per AS/NZS 4859.1&2
  • For climate zone applications requiring higher RT values please refer to your GI Architectural Specialist for alternatives

How to specify

GI All-In-One CRIS™– The insulation to be installed under roof shall achieve an installed Summer RT 4.2 and Winter RT2.2 in accordance with AS/NZS 4859.1&2 and a thermal break of no less than 0.30. It shall be the GI Building Sciences Insulated Permanent Safety Net System known as GI All-In-One CRIS™ .Tested in accordance with AS/NZS 4389 and accredited as a safety net system, the system consists of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI All-In-One™ (0.20) with a proprietary core consisting of foam encapsulated safety mesh. The upper layer shall be GI Reflecta-Cell Plus™ reflective insulation containing a thermo-cellular material. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2

CRIS™– The insulation to be installed under roof shall achieve an installed Summer RT 4.2 and Winter RT 2.2 in accordance with AS/NZS 4859.1&2 and a thermal break of no less than 0.20.The insulation to be installed under roof shall be the GI Building Sciences CRIS™ system. A system of two reflective insulators made of reinforced foil laminate external foil surfaces. The bottom layer shall be GI Reflecta- Cell affixed to the bottom of roof purlins. The GI Building Sciences – Insulated Permanent Safety Net System known as All In One, tested in accordance with AS/NZS 4389 and accredited as a safety net system. Material to be installed in accordance with manufacturers installation procedures and AS 3999 and AS/NZS 4200.2