I want to install horizontal paneling up to the ridge between the rafters, but since the rafters vary in height and I want to lose as little ceiling height as possible, this means the boards will be positioned between the rafters and not continue to the next rafter. The length of each board will be up to 150cm (120 - 150cm) without any support in the middle.
I looked at regular panel boards but they wouldn't handle this C/C; is there something else I can use without having to lower the ceiling with battens? Is råspont better? There is råspont with the same CC above the rafters, but they are of course nailed into several rafters with staggered joints, etc.
There's nothing above that presses against the inner ceiling, so it should only support its own weight without sagging.
I looked at regular panel boards but they wouldn't handle this C/C; is there something else I can use without having to lower the ceiling with battens? Is råspont better? There is råspont with the same CC above the rafters, but they are of course nailed into several rafters with staggered joints, etc.
There's nothing above that presses against the inner ceiling, so it should only support its own weight without sagging.
Are they also supposed to keep insulation in place?
I think it's common to put up "false rafters" for that type of construction, a lighter rafter between the real ones, which is only supposed to support the inner ceiling. To get a more reasonable cc distance.
I think it's common to put up "false rafters" for that type of construction, a lighter rafter between the real ones, which is only supposed to support the inner ceiling. To get a more reasonable cc distance.
Panels that are 22 mm or more can handle it.
Ordered such a panel many years ago on a construction site I was on.
Ordered such a panel many years ago on a construction site I was on.
22mm... the timber yard has Råspont 20X95MM G4-3, is that too weak?verktygsgurun said:
(Will not support any insulation)
It should work. But keep in mind that råspont is not the best quality of wood. Many knots and generally poor quality wood.
Yes, it might be wise to apply knot sealer and paint before installation. If the result turns out poorly, you should be able to add thinner ceiling planks/panels directly onto the råspont afterwards, right?verktygsgurun said:
I meant rather that it is knaggar that have fallen out. That is, holes in the råspont.
Aha, yes, it might look like that if there are a lot of holes... I'll just have to test it and try to pick "nice" planks. It should work to place the panel against råsponten if it's crooked or does it start to warp then?