2x4 Or 1x4 For Metal Roof St

Provided your connections are strong secure 1x4 1x6 or 2x4 purlins should provide plenty of shear strength.

2x4 or 1x4 for metal roof st. Haven t seen a modern style metal roof around here that is old enough to judge durability of fasteners but on the old corregated steel roofs on barns etc that dot the countryside after a number of years there is just enough of a remnant of a washer left to indicate that one was originally used. Installing wood stripping under a tin roof. That would be my choice in this situation for the reasons you articulate convenience construction safety etc. 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.

The roofing is manufactured in panels that. 2x4 s on flat 24 oc is what scott s pdf said as a minimum even if overlay on existing decking and old roof covering. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing. Metal roofing will not provide any meaningful shear strength.

Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. I have removed all the old shingles from the roof boards not plywood the roof is in great shape and have installed an ice shield over the roof. Let s take a look at the most common types of metal roofs for houses. 5 4 x 4 slats are acceptable decking still not if just 4 oc supported 24 oc if hitting nail penetrations full 1 nail penetration into 2 x structure stock on panel sides.

We do recommend it however. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. Regardless 1x4 decking slats aren t acceptable. Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available.