I have a Napolean and it has the lightweight panels that sit up in the top as a baffle. I dont know what that material is called but its light. Some time ago when I didnt have screen on my stovepipe ,some birds got in and got stuck in the stove. One of the birds actually pecked a large hole in the material trying to get out I guess. I hadnt noticed it because I dont use the house in winter anymore. It is a big hole. Anyway can I get some generic replacement panels of that lightweight stuff and cut them to fit up there??? I dont want to order anything from Napolean ...I just want some generic stuff otherwise I will put firebricks up in there. Any info appreciated.