Kingspan Insulation
Kingspan Group

PB6HD Roofing Cover Board

PB6HD Roofing Cover Board header

Specifically designed for commercial roofing applications involving mechanically attached EPDM, TPO and PVS single-ply roof membrane.

PB6FA is an excellent choice for re-roofing single-ply membranes. The board’s install time and ease of use give you the necessary tools for a lower installed cost. And the 20psi extruded polystyrene (XPS) foam provides durability and high moisture resistance. PB6HD is available as 4′ x 8′ sheet or  4′ x 50′ fanfold bundles.

Property Test Method Value
General 
Nominal Thickness (in) 3/8
Nominal Bundle Dimensions (ft) 4 × 50
fanfold
Compressive Strength, Min.
(psi@10% deflection)
ASTM D 1621 20
Density (lb / ft³) ASTM C 303 3.5
Water Absorption, Max.
(% by volume)
ASTM C 272 0.6
Water Vapor Permeance
(perm)
ASTM E 96
(Desiccant Method)
0.6
Recommended Service Temp., Max.
(ºF)
200
Weight
(lb/1000ft²)
130
Thermal 
Thermal Resistance, R-Value1
(ºF-ft²-h/Btu)
ASTM C 518
(@75ºF Mean Temperature)
1.5
Fire & Smoke 
Flame Spread2
Smoke Developed2
ASTM E 84 / UL723 15 (Class A)
50

1Specimens are aged and tested in accordance with FTC Rule (16 CFR, Part 460) and ASTM C 578.
2These numerical flame spread and smoke developed ratings are not intended to reflect hazards presented by this material under actual fire conditions. All applicable building codes must be followed.