Abstract: An apparatus for providing a roof structure having a plurality of purlins spaced apart from one another in a parallel arrangement is disclosed. The apparatus includes a carriage which is movable in a downstream direction along the length of the purlins. As the carriage moves in the downstream direction, a support sheet for support of insulation material is payed out so that the support sheet depends from adjacent purlins. The apparatus further includes a plate which is attached to the carriage. The plate supports a roll of insulation material which is unsupported axially. The insulation material is connected at the upstream end of the roof structure and is payed out on top of the support sheet as the carriage moves along the length of the purlins.

Abstract: An apparatus for providing a roof structure having a plurality of purlins spaced apart from one another in a parallel arrangement is disclosed. The apparatus includes a carriage which is movable in a downstream direction along the length of the purlins. The carriage pays out a support sheet for support of insulation material as the carriage travels along the length of the purlins so that the support sheet depends from the top portion of adjacent purlins. The apparatus further includes at least one roller mounted on the carriage mounted to roll along the top portion of at least one purlin and thus support and guide the carriage along the downstream direction. The roller includes a frustum portion to hinder movement of the carriage in a direction lateral to the downstream direction and thus help to maintain the carriage in alignment with the purlins.

Abstract: A method for providing a roof structure having a plurality of trusses spaced apart from one another in a parallel arrangement is disclosed. The trusses each have a top portion. A support sheet is payed out so that the support sheet depends from the top portions of adjacent trusses. Flexible insulation material is applied above the support sheet so that the flexible insulation material is supported by the support sheet. Metal deck sheets are fastened to the top portion of the trusses, thereby forming a metal deck. A temporary waterproofing sealant is applied to the metal deck to protect the flexible insulation material, thereby creating a partially completed roof structure. Rigid insulation board and a waterproofing membrane are subsequently applied onto the metal deck, thereby forming a completed permanently sealed roof structure.