Do Metal Siding Need Sheathing Under

I have been hearing mixed things about if we should put plywood underneath the metal or use just the metal.

Do metal siding need sheathing under.

The impact of condensation in post frame buildings is very real. While metal roofing doesn t require plywood underlayment there are circumstances in which you may wish to install plywood to anticipate future roofing needs or to offer additional soundproofing. Here s how to fight back against the enemy within. Modern metal roofs are expected to last 30 years or longer.

With metal roofing do i need plywood under it. If an open grid framed roof or widely spaced old solid roofing planks as the sheathing it is important to tightly stretch this so it does not sag down and hold water between the framing roof sheathing boards and the metal roofing obviously far better to put down a solid sheet sheathing first when doing a reroof in that sort of situation. If you re wondering how to prevent condensation under a metal roof you re not alone. Installing a layer of sheathing like plywood over the furring strips will give you an even insulated surface to work on.

3 apply sheathing over the wall if you installed furring strips. I am building a 10x28 shed row horse barn and we decided on green metal roofing. They need to run in the opposite direction of the metal siding.