Skip Sheathing Metal Roof

Panel or tile system.

Skip sheathing metal roof.

Under the tile there is no felt paper or solid sheathing. Board and batten pan and ridge panels. Next purlins parallel to the eaves and then roofing. Grace ice and water shield or titanium udl50 is recommended along the eave up to 3 0 beyond the inside of the exterior wall.

Under your metal roofing you need roofing underlayment to catch the dripping condensation. Sheathing with gaps between. On top of your insulation you need an air barrier. Many metal roofing dealers specify minimum of 7 16 sheathing.

Most formed metal roofing the type that imitates wood slate or clay comes with a built in thermal break that insulates against heat passing to the roof deck below. Installing over skip sheathing is fine. Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. You ll want to use both longer sheathing nails and longer roofing nails.

The rest of the roof would be covered with titanium psu30 or something similar. Design depends on type of metal roof. The roofing is manufactured in panels that. The tile roof system leaks like a seive the metal roof contractors are proposing laying the 30 felt paper directly over the skip sheathing.

The underlayment is very important. Osb or plywood over skip sheathing makes for a much stiffer roof deck resists problems with expansion better and obviously doesn t require all the hassle of removing it. As well as all valley s. The time saved in humping edless 4x8 sheets up onto the roof nailing them off and creating staging areas to work from is b huge as you install the strapping purlins at 24 oc you are creating a.

Exposed or hidden fasteners. Most you see on homes and many commercial building is non structural metal roofing and needs to be on solid sheathing. The entire roof deck is relatively uniform where you can step on any part of it without slipping through spaces. Installing wood stripping under a tin roof.

Lets pretend the roof design details are conventional and so the roof deck sheathing will be 5 8 to 3 4. First of all thanks for selecting a metal roof. The easiest way to do this is to have solid sheathing with taped seams that s your air barrier covered with roofing underlayment. Traditionally skip sheathing consists of 1 inch by 4 inch boards nailed to the rafters with gaps between the boards.

There is only skip sheathing present. I am having a stone coated metal roof installed on my house that has a tile roof. And unlike asphalt slate or clay roofs that hold onto solar heat after the sun goes down metal quickly releases its heat back into the atmosphere. On metal frame building and the like you will likely see structural metal roofing installed on purlins that is what those 1x4 are purlins and those metal roofing panels are rated for that type of installation.

Shake and shingle panels.