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R-4 HP Panel
R-4 HP Panel
R-4 HP Panel
R-4 HP Panel

4 reasons to build with our new R-4 HP exterior insulsheathing

1 – Excellent rigidity

New R-4 HP offers the same rigidity as a 13 mm (1/2 in.) wood bre panel, without its heavy weight. BP breaks new ground with its 11 mm (7/16 in.) wood bre panel that’s as rigid as a 13 mm panel (1/2 in.). A lightweight product that’s easy to handle and install.

  • Increased rigidity without additional weight
  • Easy to position on wall partition
  • No additional support needed

2 – True R-4 insulation

A panel that lives up to its name. BP made sure that the manufacturing parameters of both wood fibre panels and BP’s white expanded polystyrene Type II panels met the precision standards. Once the panels are fixed together, they create a true R-4 thermal resistance. You can trust BP’s R-4 HP, measured and tested!

  • True R-4 thermal resistance
  • Covers thermal bridges
  • Proven insulation performance, measured and tested

3 – More than an insulation panel

R-4 HP offers excellent sound attenuation properties and a higher water vapour permeance rate compared to other panels on the market, so the wall cavity is kept really dry. This also assures that only high quality houses are built. BP’s R-4 HP is made of 98% recycled and local products, and helps qualify for LEED® credits.

  • Offers superior soundproofing
  • Maintains drier wall cavities
  • Helps qualify for LEED® credits

4 – Bigger and better R-4 HP!

New energy ef ciency rules have changed construction methods. As a result, contractors must deal with higher costs… and every penny counts.

BP now introduces a 1.22mx2.79m(4ft.x9ft.2in.) R-4 HP. The simple addition of 2 inches makes installation faster, easier and more efficient because there’s no jointing. See for yourself!

  • Added efficiency
  • Uncompromised quality
  • Jointless installation
  • Quick installation
  • Easy handling
Product Code



4′ X 8′ (48″ X 96″)
4′ X 9′ (48″ X 108″)
4′ X 9’2″ (48″ X 110″)


118.9m2 (1280 ft2)
133.8 m2 (1440 ft2)
136.3 m2 (1467 ft2)




CAN/ULC-S706-02 Type IV, Grade 1
CCMC 13565-RCCMC 13584-R
ULC-S796, Type II, Class 3 and Class 4

Application Instructions

R-4 HP BP Insul-Sheathing Panels

Technical Data Sheet

R-4 HP BP Insul-Sheathing Panels

Safety Data Sheet (SDS)

R-4 HP BP Insul-Sheathing Panels

Brochure LEED

R-4 HP BP Insul-Sheathing Panels


R-4 HP BP Insul-Sheathing Panels