Insulating a cathedral garage ceiling ?

[8nford]

Finally started ceiling insulating . I have 23.5 inch wide by 39 ft long kraft faced batts . I cut them 8 and 8'11" to reach the peak 20 ft up. My issue is trying to keep batt in place . Starting on the eave side worked pretty well shoving batt in ad staying in place. Until the next batt going up wants to fall out . I watched a vid and shows them cutting 4 ft batts , seemed like it was more manageable . Or do i need to string something across the truss temporarily to hold the longer pieces in place ? Any suggestions, trying to do the safest way possible i'm up on a scaffold with step ladder to reach the top part of the cathedral . Ideally a scissor lift would be the way to go , that's not an option. I only have one bay to do ,not the whole 32x50 . Thanks for any suggestions . Don

 

[like2wheel]

If they are Kraft faced, don't they have flanges to staple to hold them in place?

 

[8nford]

Sure do but batt wont stay up well enough to staple . Need both hands to hold batt up in position then the back half of batt flops down on top of me . Need to figure how to keep back half up so i can pull and staple the batt .

 

[nadogail]

A tee or crutch might help.

A cross arm on top of a vertical upright might help.

 

[like2wheel]

How thick is the insulation? That might be the problem. The 12" attic insulation I recently used in the cathedral part of my barn was 24" wide. They were only 4', but stayed in the bay fine, so 8' would not have been an issue.

 

[8nford]

Only 6 and 1/14 R=19 im going to try and tack a plastic paint guide across and see if it,s better. If not i will break them down to 4 ft . Thanks guys

 

[rustedgoat]

Have you tried regular insulation clips (insulation supports)? there just a thin steel wire you put between joists or rafters, maybe every 2 feet. Its around $10 for box of 100 at home depot.