Hi all. I'm looking for some advice for fitting a roof lining to a van.
I have an Iveco Daily 35S12 MWB H/R, which I am converting in to a campervan; the vehicle has no roof lining.
The roof of the vehicle is mildly semi-elliptical which causes a problem when fitting battens.
I have fitted battens along the beams and pushed them in the middle to bend them to shape and then screwed them in place.
Because of the shape, I have used hardboard to manufacture the roof lining due to it's ease of fitting. Unfortunately, now fitted it very easily moves under light finger pressure and I am concerned that it will not stand up to daily use and may be potentially noisy whilst driving.
My questions are: Should I be using plywood instead of hardboard? If so, what thickness of ply should I use? Should I attempt to fit a single large sheet or several smaller ones? and should I fit straight battens instead of trying to follow the contour of the roof?
Any help or advice would be very much appreciated.
Stay with the hardboard but find some insulation foam of suitable thickness to go between board & roof so solving any potential noise problems & improving insulation of roof which will make van warmer.
You don't mention insulation which you will need otherwise you will get condensation. Stick 25mm thick Kingspan or similar to the roof with Sika and then use 3mm thick lining ply which is vinyl faced. Hardboard is not suitable
You should not be using hardboard in any conversions. Its ghastly stuff and sucks up dampness like a sponge, then deforms.
Use marine grade ply.
Your roof should have some reinforcing, screw the ply directly to that after gluing in insulation.
Cut and test fit it first, then glue the lining on and screw down. DONT use standard spray glur to glue down the lining material as it wil dry out and come loose. You need high temperature spray glue which wont dry out when the temperature rises.