Hi Kevin,
Regarding the Homasote fibre board that you talk about in episode 119 for the moisture board, this is a US brand which doesn't seem to be available here, but in the UK we have something similar made from recycled newspapers made by a firm called Sundeala.
Its commonly used for noticeboards in schools, etc. and is available untreated (which I guess would be good for the bees) or fire-retardant (probably not so good for the bees)... The website for the UK listeners is: www.sundeala.co.uk
Bee good!
Patrick.
A podcast dedicated to the enjoyment of hobbyist beekeeping.