We have had the roof of our outbuilding redone with new slate (replacing old slate) and it has been felted and insulated with between rafter insulation at the same time. It has never been boarded before.
I now want to board it to finish it and was thinking of plasterboarding and skimming. However one thing that is concerning me is the additional weight of the plasterboard on the roof. I have calculated that I need around 22 sheets of 1.8x0.9m plasterboard. If I use 9.5mm thickness this will be about 250kg I will be adding to the roof. Should I be concerned about this - ie. does the roof need reinforcing?
From looking at it my gut feeling is no, but I thought I would check with some people with more experience first!
If it helps, I have attached a photo. The span of the roof is about 5m and the smaller rafters are about 7cm x 8cm. It is an old building, Victorian or Georgian I think but seems to be very sturdily made.
I had also considered boarding it with hardboard to keep the weight down but I don't think this will be anywhere near as neat or durable, if anyone has any opinions on this I'd be interested.
Thanks in advance!
I now want to board it to finish it and was thinking of plasterboarding and skimming. However one thing that is concerning me is the additional weight of the plasterboard on the roof. I have calculated that I need around 22 sheets of 1.8x0.9m plasterboard. If I use 9.5mm thickness this will be about 250kg I will be adding to the roof. Should I be concerned about this - ie. does the roof need reinforcing?
From looking at it my gut feeling is no, but I thought I would check with some people with more experience first!
If it helps, I have attached a photo. The span of the roof is about 5m and the smaller rafters are about 7cm x 8cm. It is an old building, Victorian or Georgian I think but seems to be very sturdily made.
I had also considered boarding it with hardboard to keep the weight down but I don't think this will be anywhere near as neat or durable, if anyone has any opinions on this I'd be interested.
Thanks in advance!