Compressive Strength:  8,500 psi (min)

Flexural Strength:  1,100 psi (min)

Weight per s.f.:  Varies with thickness.  (Pressed Concrete weighs 12 psf per inch).

Water Absorption:  less than 5%

Freeze Thaw Resistance:  50 Cycles

Designed for use in conjunction with pedestals, drainage mats, recovery boards or for direct application over membranes (Consult Roofblok Technical Services or Membrane Manufacturer's Customer Service department for specifics)

Designed to handle heavy traffic loads.

Compressive Strength:  8,500 psi (min)

Flexural Strength:  1,100 psi (min)

Weight per s.f.:  Varies with thickness.  (Pressed Concrete weighs 12 psf per inch).

Water Absorption:  less than 5%

Freeze Thaw Resistance:  50 Cycles

Designed for use directly over membranes (Consult Roofblok Technical Services or Membrane Manufacturer's Customer Service department for specifics).

Bi-directional subsurface drainage system.

Designed to handle heavy traffic loads.

Not for use with standard pedestal systems.

Not recommended for installation on insulation boards having strength less than 25 psi.

Compressive Strength:  8,500 psi (min)

Flexural Strength:  1,100 psi (min)

Weight per s.f.:  Varies with thickness.  (Pressed Concrete weighs 12 psf per inch).

Water Absorption:  less than 5%

Freeze Thaw Resistance:  50 Cycles

Designed for use directly over membranes (Consult Roofblok Technical Services or Membrane Manufacturer's Customer Service department for specifics).

Bi-directional subsurface drainage system.

Designed to handle heavy traffic loads.

Not for use with standard pedestal systems.