DIY skylight sun-block, fire hazard

skylight

We have two skylights in our master bedroom that get quite a bit of light during the day. Normally this wouldn't bother us, but we have a one-month old now sharing the room with us that gets enamored with the light coming from it at 6 AM, making it very difficult to get her back to sleep. I picked up two black foam boards from CVS and put them up to block the sun. It works, but I wanted to make sure this is not a fire hazard. I'm open to other affordable suggestions. Just fyi: the house is 40' high, so getting to the roof and doing something on the outside of the skylight is a little beyond my capabilities right now as I don't have the appropriate equipment.

Question is: are these foam boards a fire hazard if they see sunlight for long periods of time? Pics below.

The make shift sun-block using black foam boards:
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Skylight without the boards
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Best Answer

Have you placed a thermometer to see what the temp is? I can't imagine it would be hot enough up there to cause any problems. It's no different than any large window with dark drapes or blinds closed and sun shining through.

There is a nice lip on that crown molding that would be perfect to hold a pull down,sun blocking shade.