Hi A couple of weeks before Christmas we had a fibre glass roof installed on to an ground floor bedroom extension. I had a conversation with the contractor regarding the weather conditions for laying fibre glass and he replied that it was the temperature, around 6c on the day to the amount of "peroxide" (catalyst) he would use. On completion, the resin odour seeping into the bedroom was overpowering that we couldn't`t use the room for approx 1 month. The contractor, manufacturer and supplier of the material all said it would take approximately 2 weeks to disperse. Although myself and daughter carn`t smell anything now, my wife insists she can. I was wondering if there is anyone who can point me in the right direction as to obtaining a monitoring device or something along those lines Thanks Harry