The new insulation rests about 12 above the ceiling joists so there wasn t a good way to lay down flooring for storage without sacrificing the efficiency gain from the new insulation.
Fix above garage attic storage.
To answer your question the garage attic is not a good area for storage.
Access to attic storage.
Storage space in an attic garage does not require the insulation or finishing touches of building a room there so it s relatively inexpensive to build this storage space.
First a truss a manufactured roof system is designed to support the roofing above and the ceiling below.
Install electric ventilators and attic fans which remove hot air from an attic.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
If the trusses of your garage roof cannot support an attic you will find that holes will develop in the ceiling of the garage.
Step 1 tap into the attic space over the garage using a tall a shaped ladder.
If you want to use your attic on a regular basis or to store large items you may need to enlarge the access opening and install an access ladder or drop down stairs.
Then one day while working in the garage it dawned on me that there was a huge unused space right above me.
This video will.
Walk across the floor looking for weak spongy or sagging areas.
Test the floor strength of the garage attic to ensure it can hold the weight of your storage items.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
Before you start this project though consult a knowledgeable building professional to make sure your rafters are rated for the extra loads.
If the attic has the potential to become a regular living space talk with a contractor about adding a fixed stairway.
If you have a garage then you might want to create a little bit of attic storage above it.