I used that expanding foam, too! Man that stuff is sticky! But it works like a charm around pipes or in other little places where light sneaks in.Originally Posted by Max Power
BTW - when you check your room for light leaks, check it at least 4 times during the day. After my darkroom had been in operation for a month, I saw a light leak in a place I'd looked at previously and seen nothing. The difference was that it was mid-day and our garage door was open. Since my room shares a wall with the garage foundation, I discovered a leak where a water spigot went out into the garage. Amazing!