Compressive Strength:  7,000 psi (min)

Flexural Strength:  900 psi (min)

Weight per s.f.:  13.5 psf (+/- 3/4 lb.)

Weight per Unit:  30.5 pounds

Water Absorption:  less than 5%

Freeze Thaw Resistance:  50 Cycles

Engineered to withstand uplift pressures associated with rooftop wind speeds in excess of 160 mph.

Bi-directional subsurface drainage system.

Designed to handle medium traffic loads.

Compressive Strength:  7,000 psi (min)

Flexural Strength:  900 psi (min)

Weight per s.f.:  16.5 psf (+/- 3/4 lb.)

Weight per Unit:  37.0 pounds

Water Absorption:  less than 5%

Freeze Thaw Resistance:  50 Cycles

Engineered to withstand uplift pressures associated with rooftop wind speeds in excess of 160 mph.

Bi-directional subsurface drainage system.

Designed to handle medium to heavy traffic loads.

Compressive Strength:  8,000 psi (min)

Flexural Strength:  1,000 psi (min)

Weight per s.f.:  22.0 psf (+/- 3/4 lb.)

Weight per Unit:  50 pounds

Water Absorption:  less than 5%

Freeze Thaw Resistance:  50 Cycles

Engineered to withstand uplift pressures associated with rooftop wind speeds in excess of 160 mph.

Bi-directional subsurface drainage system.

Designed to handle medium to heavy traffic loads.

Compressive Strength:  2,500 psi (min)

Flexural Strength:  350 psi (min)

Weight per s.f.:  12.0 psf (+/- 3/4 lb.)

Weight per Unit:  12.0 pounds

Water Absorption:  less than 18%

Freeze Thaw Resistance:  50 Cycles

Engineered to withstand uplift pressures associated with rooftop wind speeds in excess of 160 mph.

Bi-directional subsurface drainage system.

Designed to handle medium traffic loads.

Compressive Strength:  5,000 psi (min)

Flexural Strength:  700 psi (min)

Weight per s.f.:  18.0 psf (+/- 3/4 lb.)

Weight per Unit:  18.0 pounds

Water Absorption:  less than 9%

Freeze Thaw Resistance:  50 Cycles

Engineered to withstand uplift pressures associated with rooftop wind speeds in excess of 160 mph.

Bi-directional subsurface drainage system.

Designed to handle medium traffic loads.