Roofs - Insulation Overlays

Jump to: navigation, search

Roofs - Insulation Overlays


Division C - Accepted Materials


Roofs: Insulation Overlays

Accepted Materials for a RoofStar Guarantee

The tables and products shown below provide basic material data and links to more information about the materials, including manufacturers' published Technical Data sheets, but this information is not intended for use as a comparison of material performance or quality. It is the sole responsibility of the Design Authority to assess the performance capability and material suitability for specific design requirements.

The materials listed are those which have been accepted by the RoofStar Guarantee Program (RCABC Guarantee Corp., or RGC) for use in a roof or grade-level waterproofing system that will qualify for a RoofStar Guarantee. The acceptance of these materials by the RGC (RoofStar Guarantee Program) in no way reflects on the quality or performance of other materials not listed.

The materials and guideline specifications are listed under the name of the manufacturer and/or supplier of the primary membrane material, with the exception of BUR membranes for which the reader will find RoofStar Guarantee Program guidelines on traditional built-up roofing systems (BUR) incorporating organic and glass felt primary membranes.

Insulation overlays are used to separate the roof membrane from the primary insulation, usually for one of two reasons:

  • to prevent the insulation from affecting the performance of the roof membrane
  • to prevent the roof membrane and / or the method of application from affecting the insulation

The insulation can affect the performance of the roof membrane in the following ways:

  • the insulation may be incompatible with the membrane, resulting in a loss of physical properties
  • different coefficients of thermal expansion may result in membrane splits / cracks.

The roof membrane and / or the method of application can affect the insulation in the following ways:

  • the insulation may not be capable of withstanding asphalt application temperatures and may “burn-out”
  • some insulations will not accommodate direct torch-applied membranes
  • insulations that are too “soft” may result in delamination or damage to the membrane or insulation when exposed to heavy loads or traffic
  • the solvents and adhesives used for flexible membranes may adversely affect the insulation.


Asphaltic Overlays

Asphaltic Overlays
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program. NOTE: materials linked to Tested Assembly tables may be displayed separately or located only in Tested Assembly reports.
Manufacturer Product Name Thickness
(mm)
Thickness
(in.)
Dimensions
(mm)
Dimensions
(in.)
Compressive
Strength
(kPa)
Compressive
Strength
(psi)
Thermal
Resistance
(RSI/25.4 mm)
Thermal
Resistance
(R/inch)
Hal Industries Inc. Perma-Board 4.5 3/16 1000 x 2000 39 x 66 - - - -
IKO Industries Ltd. Protecto Board 4.5, 6.4, 12.7 3/16, 1/4, 1/2 1220 x 1520, 1220 x 2440 48 x 60, 48 x 96 - - - -
IKO Industries Ltd. Protectobase 95 4.5 3/16 - - - - - -
IKO Industries Ltd. Protectobase 180 4.5 3/16 915 x 2400 36 x 96 - - - -
Polyglass USA, Inc. Polyboard E 4.5, 6 3/16, 1/4 1220 x 1520 48 x 60, 48 x 96 - - - -
Polyglass USA, Inc. Polyboard W 4.5 3/16 1000 x 2000 40 x 80 - - - -
Soprema Inc. Sopraboard 4.5, 6.3 3/16, 1/4 1220 x 1520, 1220 x 2400 48 x 60, 48 x 96 - - - -

Moisture resistant fibreglass-faced silicon treated gypsum core overlays

Moisture-resistant fibreglass-faced silicon treated gypsum core Overlays
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program. NOTE: materials linked to Tested Assembly tables may be displayed separately or located only in Tested Assembly reports.
Manufacturer Product Name Thickness
(mm)
Thickness
(in.)
Dimensions
(mm)
Dimensions
(in.)
Compressive
Strength
(kPa)
Compressive
Strength
(psi)
Thermal
Resistance
(RSI/25.4 mm)
Thermal
Resistance
(R/inch)
Georgia-Pacific Canada Ltd. DensDeck® Roofboard 6.4, 12.7, 15.9 1/4, 1/2, 5/8 6.4, 12.7, 15.9 4 x 8 3447 - 6205 500 - 900 - 0.56
Georgia-Pacific Canada Ltd. DensDeck® Prime with EONIC Roof Board 6.4, 12.7, 15.9 1/4, 1/2, 5/8 6.4, 12.7, 15.9 4 x 8 3447 - 6205 500 - 900 - 0.56
USG (CGC) SecureRock Securerock Gypsum Fibre Roof Board - - - - - - - -
USG (CGC) SecureRock Securerock Glass-Mat Roof Board - - - - - - - -

High-density Insulation Overlays

High Density Overlays
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program. NOTE: materials linked to Tested Assembly tables may be displayed separately or located only in Tested Assembly reports.
Manufacturer Product Name Thickness
(mm)
Thickness
(in.)
Dimensions
(mm)
Dimensions
(in.)
Compressive
Strength
(kPa)
Compressive
Strength
(psi)
Thermal
Resistance
(RSI/25.4 mm)
Thermal
Resistance
(R/inch)
Carlisle Syntec Systems Canada SecurShield HD Plus 12.5 1/2 1220 x 2440 48 x 96 690 100 - 2.5
Firestone Building Products ISOGARD HD (Grade 1, 2) 12.5 1/2 1220 x 1220, 1220 x 2440 48 x 48, 48 x 96 ≥ 551, ≥ 827 ≥ 80, ≥ 120 0.44 2.5
Hunter Panels H-Shield HD 12.5 1/2 1220 x 2440 48 x 96 620 90 0.44 2.5
IKO Industries Ltd. IKOTherm Covershield 12.5 1/2 1220 x 2440 48 x 96 620 90 0.44 2.5
Johns Manville Corporation Retrofit Board 12.5 1/2 610 x 1220, 1220 x 1220, 1220 x 2440 24 x 48, 48 x 48, 48 x 96 255 37 0.46 2.64
Johns Manville Corporation Invinsa Roof Board 6.3 1/4 1220 x 1220, 1220 x 2440 48 x 48, 48 x 96 1034 150 - 1
Siplast Paratherm HD 12.5 1/2 1220 x 1220, 1220 x 2440 48 x 48, 48 x 96 552 80 0.44 2.5
Siplast Paratherm W HD 12.5 1/2 1220 x 1220, 1220 x 2440 48 x 48, 48 x 96 552 80 0.44 2.5
Soprema Inc. Sopra-Iso Plus HD 12.5 1/2 1220 x 1220, 1220 x 2440 48 x 48, 48 x 96 689 100 0.44 2.5

Composite and Membrane-laminated Overlays

Composite, Laminated Overlays
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program. NOTE: materials linked to Tested Assembly tables may be displayed separately or located only in Tested Assembly reports.
Manufacturer Product Name Thickness
(mm)
Thickness
(in.)
Dimensions
(mm)
Dimensions
(in.)
Compressive
Strength
(kPa)
Compressive
Strength
(psi)
Thermal
Resistance
(RSI/25.4 mm)
Thermal
Resistance
(R/inch)
IKO Industries Ltd. ShieldBase 180 14.7 0.58 914 x 2440 36 x 96 - - - -
Soprema Inc. 2-1 SopraSmart Rock 27.6, 40.3 1.09, 1.59 914 x 4880 36 x 192 85, 190 (10, 25%) 12, 28 (10, 25%) 0.7 4
Soprema Inc. 3-1 SopraSmart Rock 78.2 3-3/32 914 x 2440 36 x 96 75 11 0.7 4
Soprema Inc. 2-1 SopraSmart Board 5.4, 7.0 7/32, 9/32 914 x 2440 36 x 96 - - - -
Soprema Inc. 2-1 SopraSmart Board ISO HD 14.9 0.6 914 x 2440, 914 x 4880 36 x 96, 36 x 192 550 - 759 80 - 110 0.44 2.5

Mineral Fibre Overlays

Mineral Fibre Overlays
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program. NOTE: materials linked to Tested Assembly tables may be displayed separately or located only in Tested Assembly reports.
Manufacturer Product Name Thickness
(mm)
Thickness
(in.)
Dimensions
(mm)
Dimensions
(in.)
Compressive
Strength
(kPa)
Compressive
Strength
(psi)
Thermal
Resistance
(RSI/25.4 mm)
Thermal
Resistance
(R/inch)
Soprema Inc. Soprarock MD 25 1 1220 x 1220 48 x 48 12.1 84 0.62 3.5
Soprema Inc. Soprarock MD Plus 25 1 1220 x 1220 48 x 48 12.1 84 0.62 3.5

Fibreboard and Membrane-laminated Fibreboard Overlays

Fibreboard Overlays
Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program. NOTE: materials linked to Tested Assembly tables may be displayed separately or located only in Tested Assembly reports.
Manufacturer Product Name Thickness
(mm)
Thickness
(in.)
Dimensions
(mm)
Dimensions
(in.)
Compressive
Strength
(kPa)
Compressive
Strength
(psi)
Thermal
Resistance
(RSI/25.4 mm)
Thermal
Resistance
(R/inch)
IKO Industries Ltd. Asphalt Fibreboard - - - - -
MSL Securtorch 12.5 1/2 1220 x 1220 48 x 48 - - 0.27 1.5
MSL Asphalt Coated (6 sides) - - - - -
MSL Asphalt and Wax Impregnated Fibreboard - - - - -
MSL Asphalt and Wax Impregnated HD - - - - -
MSL Securpan (asphalt coated) - - - - -
Posi-Slope Western MF (Protect Board Composite) - 600 x 1200, 900 x 1200 24 x 48, 36 x 48 - - 4
Roofmart Pacific Ltd. Roofcraft 95 Base FR 14 9/16 900 x 2600 36 x 102 - - 0.55 3.1
Roofmart Pacific Ltd. Roofcraft 180 Base FR 14 9/16 902 x 2600 36 x 102 - - 0.55 3.1
Soprema Inc. 2-1 SopraSmart FB - 910 x 2440 36 x 96 235 34 0.53 3

Accepted Materials

Home

© RCABC 2022
No reproduction of this material, in whole or in part, is lawful without the expressed permission of the RCABC.