[angie]

Hi we are building a new goat shed in the next few weeks. We were thinking of using unduline (might have spelled it wrong lol) for the roof and wondered if any one on the forum has used/has an opinion on its use. Anyone had condensation in the winter using it?

Any comments and advice welcomed

Angie

[mart6]

If you use it
you need to put a layer of plywood under it to prolong its life as it suffers from sag in heat if not properly supported.
Friend builds stables for a living and will not fit it without plywood under it due to numerous issues
Think manufactures even advised him similar

[Rupert the bear]

Yes deffo needs support ,a couple of good hot days and it sags and lets in the weather, my workshop suffered this fate , so off it came and replaced

[Still playing with tractors]

its only other issue as its light, is that if not fixed down well it will come off easily with high winds

[PK]

Onduline's website has useful and detailed guidance about how best to use it. They do recommend laying on plywood for shallow sloping roofs but not necessarily for steeper gradients. I've used it for three projects in the last four years and fixed the sheets to purloins spaced 40cm apart and had no problems with sagging. They have remained water tight and coped well with a full frontal attack from Storm Doris and one rather more severe wind a couple of years ago. Don't stint on the fixings though.

[Jukes Mum]

We used it to roof our sheep shelter. Its nice to work with, easy to cut, easy to fit, light to lift and 3 years on it looks as good as new. I think we used supports at 1 foot spacings.

[angie]

Thank you all for your comments very helpful

Angie

[pharnorth]

For a gently sloping roof I have found Onduline on top of ply board very effective. Much better than ply with roofing felt. Did the goat house about 15 years ago now and still no issues.