This voluntary specification establishes the minimum requirements for dimensional stability, weatherability, heat resistance, weight tolerance, heat build-up, Shore D Hardness and lead content of cellular polyvinyl chloride (P VC) exterior profiles used in windows, doors and skylights. These include: a) Cellular PVC profiles used as frames, sash and all structural profiles related to glass retention and/or profiles that structurally divide lites within a common master frame of all cellular polyvinyl chloride products. b) Cellular PVC profiles, as described above, but used in composite structures, where Cellular PVC is combined with other materials, such as wood, aluminum, steel, reinforced thermosets and reinforced thermoplastics. c) Cellular PVC profiles used as cladding over wood, aluminum, steel, reinforced thermosets and reinforced thermoplastics. These profiles include, but are not limited to, those with decorative finishes such as paint, laminates and co-extrusions.