Gross Volume of a Protected Enclosure : Volume enclosed by the building elements around the protected enclosure, less the volume of any permanent impermeable building elements within the enclosure
Solutions Fire Safety Ltd, Fire Safety Glossary: An A - Z of definitions regarding fire safety terms and vocabulary, Solutions Fire Safety Ltd, UK 2012. http://solutionsfire.co.uk/Fire-literatures-PDF/Fi re-Safety-Glossary.pdf, (Fr Sfty - Brit) {465}