Eave Protection & Underlayment (Asphalt Shingles, Cedar Shakes & Shingles)

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Eave Protection & Underlayment (Asphalt Shingles, Cedar Shakes & Shingles)

ACCEPTED PRODUCTS AND SYSTEMS FOR ROOFSTAR FIVE (5) YEAR, ROOFSTAR TEN (10) YEAR, AND ROOFSTAR FIVE (5) YEAR WATERPROOFING GUARANTEES.

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 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) upon application by the manufacturer/supplier, in compliance with RGC Policy A-041, and are materials for which RoofStar Guarantee Certificates are available. The acceptance of these materials 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.

For reference, consult the RoofStar Guarantee Standards for eave protection, underlayment and valleys:

  1. Standard (Steep-slope) Asphalt Shingles
  2. Low-slope Asphalt Shingles
  3. Cedar Shakes & Shingles


Eave protection is used to protect the eave and valley areas of steep sloped roofs from ice dam damage. An ice dam usually forms when the interior heat of the building warms the snow on the roof, causing it to melt and run down to the eaves. Normally, the eaves are overhanging the building and not heated from the inside. This allows the water to freeze and form an ice dam. As the ice dam grows bigger, it forms a barrier, which prevents water from draining. The water backs up behind the dam and gradually forces its way under the shingles (or shakes, tiles, etc.), through the roof deck, and into the structure. The results can range from minor staining to severe water damage to the structural members.

Eave protection is designed to prevent the water from reaching the deck and leaking into the structure. Recently a number of companies have developed self-adhesive, rubberized asphalt composite sheet materials. Properly formulated and installed, these sheets have the potential to provide a longer life and better performance. The slope and climate conditions are considerations for selection, please refer to Asphalt Shingles Roof Systems.

Underlayment is used in the field areas (where eave protection is not required) of the roof to provide a secondary protection beneath the shingles during weather events that force water back up the slope underneath the shingles. Nail Applied materials qualify only as underlayment on roof slopes of more than 1:3 (4/12).

Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program
Manufacturer Product Name Product Type Product Thickness - mm (mil) Product Weight - Kg / m2 (lb / 1002 ') Application Method Eaves Valleys Underlayment
Building Products of Canada Corp. Gripgard SBS Modified Bituminous Self-adhering
CertainTeed Corporation WinterGuard Sand SBS Modified Bituminous Self-adhering
CertainTeed Corporation WinterGuard HT SBS Modified Bituminous Self-adhering
CertainTeed Corporation WinterGuard Granular SBS Modified Bituminous Self-adhering
CertainTeed Corporation DiamondDeck Reinforced synthetic Nail-applied
CertainTeed Corporation Roofers Select Reinforced synthetic Nail-applied
FT Synthetics FT Synthetics PLATINUM Water-resistant Polyolefin Nail-applied
FT Synthetics FT Synthetics GOLD Water-resistant Polyolefin Nail-applied
FT Synthetics FT Synthetics SILVER Water-resistant Polyolefin Nail-applied
FT Synthetics FT Synthetics PLATINUM HT-SA Water-resistant Polyolefin 1.04 (41) 45 (20) Self-adhering
GAF Shingle-Mate Reinforced Organic Felt Nail-applied
GAF Stormguard SBS Modified Bituminous 1.02 (40) Self-adhering
GAF Weather Watch Reinforced Organic Felt Nail-applied
GAF Deck Armor Polypropylene Synthetic Nail-applied
HAL Industries Inc. Breathex Non-woven Synthetic Nail-applied
Henry Company Canada Blueskin PE 200 HT SBS Modified Bituminous Self-adhering
Henry Company Canada Blueskin RF 200 SBS Modified Bituminous Self-adhering
Henry Company Canada Eaveguard SBS Modified Bituminous Self-adhering
IKO Industries Ltd. Armourgard Ice & Water Protector SBS Modified Bituminous Self-adhering
IKO Industries Ltd. Roofgard Cool Grey Underlayment Spun Bonded Polypropylene Synthetic Nail-applied
IKO Industries Ltd. SBS Deck Base 44 SBS Modified Bituminous Nail-applied
IKO Industries Ltd. Stormtite Polyolefin Synthetic None stated None stated Nail-applied
Malarkey Roofing Products Right Start™ UDL SBS Modified Bituminous Nail-applied
Malarkey Roofing Products Arctic Seal Ice & Water Guard SBS Modified Bituminous Self-adhering
Malarkey Roofing Products 1030 SecureStart™ Synthetic Underlayment Lightweight Synthetic Underlayment Nail-applied
Owens Corning Canada Deck Defence Polyolefin Synthetic Nail-applied
Owens Corning Canada Weatherlock G SBS Modified Bituminous Self-adhering
Owens Corning Canada Titanium UDL 25 Polypropylene Synthetic Nail-applied
Owens Corning Canada Titanium UDL 30 Polypropylene Synthetic Nail-applied
Owens Corning Canada Titanium UDL 50 Polypropylene Synthetic Nail-applied
Owens Corning Canada Titanium PSU 30 SBS Modified Bituminous Self-adhering
Owens Corning Canada RhinoRoof U20 Multi-layer polymer-coated woven synthetic underlayment Nail-applied
Polyglass USA, Inc. Polystick IR-Xe Modified Asphalt 1.50 (60) Self-adhering
Polyglass USA, Inc. Polystick MTS Proprietary Compound 1.50 (60) Self-adhering
Polyglass USA, Inc. Polystick TU Plus SBS Modified Bituminous 2.00 (80) Self-adhering
Protecto Wrap Company Jiffy Seal Ice and Water Guard HT SBS Modified Bituminous Self-adhering
Protecto Wrap Company Jiffy Seal Butyl Ice and Water Guard HT SBS Modified Bituminous Self-adhering
Soprema Inc. Lastoflex SBS Modified Bituminous Nail-applied
Soprema Inc. Lastobond 195 SBS Modified Bituminous Self-adhering
Soprema Inc. Lastobond 240 SBS Modified Bituminous Self-adhering
Soprema Inc. Lastobond Shield SBS Modified Bituminous Self-adhering
Soprema Inc. Lastobond Shield HT SBS Modified Bituminous Self-adhering
Soprema Inc. Sopraseal Stick 1100 SBS Modified Bituminous Self-adhering


Accepted Materials


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