Roller guides for apparatus for paying out an insulation support sheet

In combination:

• 1) apparatus for providing a roof structure of the type having a plurality of purlins spaced apart from one another in a parallel arrangement, the purlins having a top portion and a generally vertical portion, the space between the vertical portions of adjacent purlins defining an insulation cavity that is generally rectangular in cross-sectional shape, the apparatus comprising:
• a. a carriage movable in a first direction along the length of the purlins for paying 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;
• and
• b. a roller guide movable in the first direction and extending downward on top of the support sheet, rotating along the length of the support sheet, thereby causing the support sheet to substantially conform to the shape of the insulation cavity;
• and
• 2) a support sheet for support of insulation material where the support sheet is dispensed from the carriage, and where the support sheet is caused to substantially conform to the shape of the insulation cavity by the roller guide.

In combination:

• 1) apparatus for providing a roof structure of the type having a plurality of purlins spaced apart from one another in a parallel arrangement, the purlins having a top portion and a generally vertical portion, the space between the vertical portions of adjacent purlins defining an insulation cavity that is generally rectangular in cross-sectional shape, the apparatus comprising;
• a. a carriage movable in a first direction along the length of the purlins for paying 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 carriage having a tension controller for maintaining the support sheet in tension in a direction along the length of the purlins;
• and
• b. a roller guide movable in the first direction and extending downward on top of the support sheet, rotating along the length of the support sheet, causing the support sheet to substantially conform to the shape of the insulation cavity;
• 2) a support sheet for support of insulation material where the support sheet is dispensed from the carriage, and where the support sheet is caused to substantially conform to the shape of the insulation cavity by the roller guide;
• and
• 3) insulation material placed on top of the support sheet.