Fiberglass blanket would definitely be the most cost effective in a small space such as you have.
Insulate garage roof trusses.
If the collar ties are 2x6 then the most blanket type insulation you can install is r19.
Don t forget to add a vapor retarder to your garage roof insulation installation.
There should be a continuous ridge and soffit ventilation.
Aug 13 2016 beautiful insulating an attic 2 how to insulate attic roof trusses.
For example if the space beneath the rafters is going to be used for a living area then you will need to insulate the roof rafters.
Aug 13 2016 beautiful insulating an attic 2 how to insulate attic roof trusses.
Make sure that the materials you buy for your insulation are in compliance with the local construction rules and regulations and follow the fire codes.
I would use unfaced f g and a 4 or 6 mil plastic vapor barrier installed before you drywall.
By keeping the insulation on the outside it hides it from viewers while still keeping the insulation trapped inside.
If you want to keep your exposed roof trusses visible then the easiest way to add some insulation is to add it to the exterior side of the finished ceiling.
Aug 13 2016 beautiful insulating an attic 2 how to insulate attic roof trusses.
Whether you need to insulate your roof rafters will depend on what you intend to do in the space directly beneath the rafters.
Make sure you have enough ventilation on your roof as well.
Aug 26 2018 beautiful insulating an attic 2 how to insulate attic roof trusses atticbedroomkids.