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 purlins spaced apart from one another in a parallel arrangement the purlins having top portions is disclosed. A carriage is providing upon which is mounted a roll of support sheet. A first section of the roof structure comprising purlins, a support sheet, insulation material, and hard roofing material is completed. An insulation support sheet having side edges which enable the support sheet to be laid on adjacent purlins is then provided. The side edges are aligned with the top portions of adjacent purlins so that the support sheet can depend from the adjacent purlins. The carriage is moved along the length of the purlins and away from the first section of the roof structure, in which the movement of the carriage pays out the support sheet in a pleated condition having a first width so that the edges of the support sheet are aligned with the top portions of adjacent purlins and the support sheet depends from adjacent purlins.