Question: How much insulation should I install in my garage ceiling?
Matt writes from Negaunee, Michigan: "I am in the process of insulating my garage. It is an attached garage with no living space above the garage. I basically want to keep the pop from freezing and be able to heat it occasionally to work in the garage. I am debating how much I should install in the ceiling? Thinking 4", I did install the foam vents to the eves to ensure good air flow."
Answer: It really depends on the size of the rafters but R-30 is generally recommended. But please understand that insulation does not produce heat, so when you are not heating the garage your pop may still freeze in the winter.
