So I keep my bikes in the garage. I went into the garage one day to pump up my tires. We had a string of 100+ degree days in a row. I found that my front tire (which can inflate up to 100psi 27x1.25) apparently blew up.
My tires can lose up to 40% psi overnight, so I'm surprised my tire could still blow up.

They are puncture proof and lasted about 11 years. I paid $50 for the set of rubber tires.