Sometimes when the roof is supported by exposed rafters, there are rafter gaps that require attention. Rafter gaps are best explained by this example that covers a number of important points. While it would be rare that your application is quite like this one, the general principals should be the same.

The peak of this A-frame was so tall, the homeowner felt it would be dangerous to use a ladder to cover the entire gabled exposure, besides he really only needed a portion of his exposed space protected and decided to cover about 1/3 of his porch. He chose to run curtain tracking perpendicular to highly pitched rafters back to the house.

In order for the tracking to be level, he had to create a pie shaped wedge to shim between the tracking and the rafters. Above the tracking were rafter gaps, each 16 inches wide and 12 inches tall.

Along with his curtain, we delivered a 12ft x 1ft piece of netting material with binding and sew-on Velcro on both 12ft sides. He cut out little 16 inch x 12 inch panelettes and Velcro-ed each top to the ceiling and each bottom to the top of the track. Because of the quality of our netting, it will not unravel when cut so the sides of the panelettes were left unbound.