Nov.-Dec. 2009:  Installing the insulation bats followed somewhat the same precarious procedure as installing the vent chutes, but was much tougher to manage.  If your rafters are perfectly spaced for a "friction fit", then you're doing okay...but mine weren't.  Some of that had to do with the length of the rafters and inherent "wandering" or warpage.  The other had to do with the ever-present aspect of amatuer carpentry.  The friction fit part wasn't bad...it was stapling up the vapor barrier that was a hassle.  Couple that with some of the bats slipping, and you have a real job on your hands.  And speaking of hands...get some good, rubberized gloves if you're going to handle insulation...just $3.00-$4.00 at Menards or Home Depot.  Oh, and another tip - get the insulation delivered if possible, because it comes in big, 4'x2'x2' plastic-wrapped bundles of (8) compressed bats, and is very awkward to handle.

Cost:  Insulation and 4 mil plastic sheet - $1800

I did leave a couple rafters empty in the middle of the building on both sides of the "A".  This was to plan ahead for a door out to the bathroom as well as running the A/C ducting, conduit for wiring PV solar panels and hot water tubing for the solar hot water panel system.

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