Paraboard™ Products

Blue textured composite roof insulation board with yellow alignment lap lines for precise installation.
White polyisocyanurate insulation board featuring a black integrated membrane underlayment flap.
Close-up of high-density foam insulation core with a textured black bitumen surfacing and green markings.
Dual-layer flat roofing board showing the white rigid foam core and extended black waterproof membrane edge.

Siplast Paraboard™ HD and HD Pro are high-performance asphaltic panels designed to be used as both the coverboard and base membrane layer in a modified bitumen roofing system. Both panels are comprised of a high density closed cell polyisocyanurate foam core with a black or white surfaced SBS-modified bitumen base sheet with polyester reinforcement laminated on top.

Listings, Approvals & Certifications:

  • Meets CSA A123.23-15 Type B, Grade 3
  • Meets ASTM D6164 Type I, Grade S
  • Meets ASTM C1289 Type II, Class 4, Grade 1 (80 psi)
  • Classified by UL in accordance with ANSI/UL 790. Refer to UL Product iQ for specific assemblies.

About Paraboard™ products

Paraboard™ HD consists of a base sheet coated with an SBS-modified bitumen and surfaced with a silica parting agent.

Paraboard™ HD Pro consists of a base sheet coated with SBS modified bitumen, then surfaced with a proprietary Syntan® acrylic coating.

Paraboard™ panels help save on time and labor, by eliminating the steps required for individual adhesion of roof components below the cap sheet membrane. With certain applications, the panels can be used for temporary repairs on damaged roofs, or with new construction projects before the final roof assembly can be installed, allowing interior work to get started before the completed roof is ready. The SBS-modified bitumen membrane provides durability and waterproofing protection, and Paraboard™ panels are backed by Siplast’s partnership and stringent quality control.

Available in Canada only.
Contact your Siplast representative to request a sample.

* See Siplast technical manuals for more information

Featured benefits

Paraboard HD

Asphaltic panel consists of a closed cell polyisocyanurate foam core coverboard laminated with an SBS-modified base sheet.

Installation

Application

Refer to the Siplast Technical Guide for detailed application information and slope limitations.

 

Storage and handling

All Siplast insulation roofing products should be stored on a clean, flat surface at least 4 inches above the ground. Upon delivery, the factory packaging should be removed or slit on all four vertical sides allow for ventilation and to prevent the accumulation of condensation. All roofing products should be stored in a dry, well-ventilated place out of direct exposure to the elements when storming for more than 14 days prior to installation. Pallets should be covered with a breathable, waterproof covering and stored on a finished surface rather than on first or grass to avoid upward evaporation/transpiration of moisture.

See product packaging and the Safety Data Sheet for specific information on the safe handling of this product.

 

Packaging

Pallet: 40 in x 97 in (102 cm x 246 cm) wooden pallet
Boards Per Pallet: 72
Pallets Per Truckload (Typical): 24
Minimum Weight: 1913 lb (868 kg)

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