[fred cook]

Originally Posted by john70t

There is something wrong with that roof shingle insulation.

Roof heat is creating a pocket underneath.
It shouldn't buckle like that.

You need eaves vents + ridge vents at the peak to let the air flow through.. Up and out.
Then add lightweight cross ties between the rafters to hold insulation material up.

That is the way it looked the day the building was finished. I do have gable vents in fact you can see one of them. The other one on the south end of the building has a powered vent that is both temperature and humidity controlled. The building is about 10 years old and has not changed visually since it was built. I guess I will leave it as is until something hits me on the head! Thanks anyway.