Insulation Overlays (Water-shedding Systems)

Jump to: navigation, search

Insulation Overlays (Water-shedding Systems)

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 may be specified in a Water-shedding Roof System (typically ASM) to separate the roof panels from the primary insulation, and to provide a flat, firm surface for the installation of panel clips (used with bearing plates). The table below represents a broad selection of overlays that could be used in a water-shedding roof system. However, not every material listed here may be suitable for this application. Therefore, the Design Authority may wish to consult with the manufacturer of a chosen material before specifying it.

For more information about the use of insulation overlays in a Water-shedding Roof System, consult the specific roof system standards published in this Manual.

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


Accepted Materials


Home