Q4. a) A year after my Steel-Craft door was installed, I painted it a dark colour to match my house. My garage faces directly into the sun and now the door appears to bow outwards when the sun shines directly on it during the day. The bowing goes away in the evening. What's happening, and will this bowing hurt the door? Should I install additional bracing onto the door to correct this problem?
b) I live in a northern community that becomes very cold in the winter. I've noticed my garage door bows inward whenever I turn the heat on in the garage. What's causing this and what can I do about it?