Square 100 square feet (9.29m) of roof area Related Articles: Glossary: 15lb [15lb.,15 lb., 15-pound]Glossary: 30lb [30lb.,30 lb., 30-pound]Glossary: 45lb [45lb.,45 lb., 45-pound]Glossary: 90lb [90lb.,90 lb., 90-pound]Glossary: Bundle