In the evening there is a smell like you get when burning coke, wich is used in England instead of coa. we have had the furnace checked and we have CO monitor but have not been able to find any problems.
Answer:
Find someone who does indoor air anyalysis and they'll be able to nail it down. I think you'll find it to be some form of mould but you'll want to know more than that.
Courtesy of Ren Molnar, Construction Consultant at HomeFocus.com. I can also be reached at (613) 748-3003 and Home Focus phone-in is broadcast live 8 to 10 A.M. (Ottawa, Ont. time) on Saturdays on www.cfra.com.