Kingspan Insulation
Kingspan Group

PB6W Roofing Cover Board

PB6W Roofing Cover Board header

Mechanically-fastened and ballasted EPDM, TPO and PVC single-ply roof membranes.

PB6W is an excellent choice for re-roofing with mechanically attached single-ply membranes. The board’s high compressive strength helps to create a smooth surface, even over most gravel surfaced roofs. And the extruded polystyrene (XPS) foam core provides high moisture resistance. PB6W can be used under mechanically attached or loose-laid and ballasted single-ply applications. It is both UL and FM approved. The 50′ fanfold bundles are easy to install and lightweight, adding only 1/10 lb. per sq. ft. With 3 lb. density foam and 3-ply facers that do not delaminate, PB6W delivers solid installed performance.

TYPICAL PHYSICAL PROPERTIES
Property Test Method PB6W PB6 PLUS
Thermal Resistance, R-Value¹
(ºF-ft²-h/Btu)¹
ASTM C 518
(@ 75ºF
Mean Temperature)
1.5 1.5
Compressive Strength
(psi @ 10% Deflection)
ASTM D 1621 15 20
Water Absorption
(Max.% by Volume)
ASTM C 272 0.6 0.6
Water Vapor Permeance
(perm)
ASTM E 96
Desiccant Method
0.06 0.06
Fire Characteristics²
Flame Spread
Smoke Developed
ASTM E 84/UL 723
10
45-140

15
40
Weight
(lbs./1,000 sq.ft.)
105 111
Max Recommended
Use Temp (ºF)
200 200
DIMENSIONS / PACKAGING
PBW6 PBW6 PLUS
Thickness (Nominal) 3/8" 3/8"
Bundle Dimensions 4' x 50' 4' x 50'
Square Feet/Bundle 200 200
Bundles/Pallet 30 30
Square Feet/Pallet 6000 6000

1 Specimens were aged and tested in accordance with FTC Rule (16 CFR, Part 460).
2 These numerical flame spread and smoke ratings are not intended to reflect hazards presented by this material under actual fire conditions. See UL Classification Certificate A184.