How To Keep Metal Porch Roof From Sweating

Place a vapor retarder under floor gravel or concrete ventilate enclosed building when concrete is being poured and continue to ventilate.

How to keep metal porch roof from sweating. Roll out the vapor barrier and cut it to size with a utility knife to fit over the ceiling. Hoist the plywood on top of the structure and line it up. The lower the pitch of a metal shed roof and also the deeper the corrugations the. You must have a vent at both ends not just one.

Having ventilation holes around the roof at eaves level and in. Tape it all the way around with duct tape so it is secure and make sure there are no gaps or seams for any moisture to get through. This roll of plastic will help keep the moisture from leaving the attic. If there is no high level ventilation already installed install a 15cm ventilation grille at the highest point at each end of the eaves.

Build your structure where possible in an elevated position with good natural drainage. The five key points to stop your metal roof sweating are. The goal is to use as many full sheets of plywood as possible. Line the attic ceiling with a plastic vapor barrier.

Use the nail gain to affix the plywood onto the frame of the structure. Fighting condensation factor 1 keep moisture from getting in. Drip stop can be applied to the back of metal coils either galvalume plus or painted and then the metal can be roll formed onto panels. This will provide flow through ventilation at the point where the hottest air rises to.

Add as many plywood sheets as possible in order to cover the entire roof.