Have a problem with our polycarbinate roofing .have build in deck to make it a room and part of house. want to keep poly as sky light. Have overlap of iron showing. Just wanting some suggestions on building something out to edge of iron?
Paul A. replied:
I used this on the underside https://www.interstateplastics.com/Polycarbonate-Twinwall-Clear-Sheet-POLCE~~SW.php?vid=200909171138-2 p