Jul 25, 2023 · In this comprehensive guide, we will explore the process of installing metal roofing over OSB, covering important considerations, preparation steps, and best practices to ensure a successful and long-lasting installation.

Jan 22, 2023 · As a general rule, you should put a metal roof over OSB. OSB is used by professional roofers as sheathing. Sheathing is a flat surface you attach to the framing for a roof, and provides a place to attach underlayment and the roof panels.

Apr 3, 2017 · Oriented Strand Board, commonly referred to as OSB, is a type of engineered lumber similar to particle board, formed by adding adhesives and then compressing layers of wood strands. OSB is widely used as roof decking material.

Mar 12, 2020 · What if I screw the metal to all of the rafters and around the outside perimeter of the roof? I'm just worried about where the metal breaks and how to fasten that down without adding the potential for leaks. But as far as purlins go, I would put those over the OSB right? –

Dec 12, 2023 · It is indeed possible to install metal roofing over OSB. OSB, a type of engineered wood panel, is lightweight, durable, and highly versatile, making it a popular choice in construction. It often serves as roof decking – the bottom layer on top of the home’s framing.

Jul 16, 2023 · In this article, we will explore the benefits and considerations of installing a metal roof on 7/16 OSB. We will discuss the compatibility of these materials, the advantages they offer, and the important factors to consider for a successful and long-lasting metal roof installation.

May 23, 2024 · Plywood and OSB. Plywood and OSB are two of the most common materials used for metal roof deck substrates. So what makes these two materials different, and how do you know which one is right for your project? The most significant difference is how they’re made.

OSB with 30# felt (or equivalent) between purlins and roof steel would be an effective condensation control. It does sound like your problem is not from condensation, but from a roof leak (or leaks). You should be looking for the leak source and curing it.

Shear capacity is highly influenced by span and how a product is fastened. All steel buildings (PEMBs) typically have wall girts 7′ apart, far beyond OSB’s spanning capabilities. You should really discuss with the engineer who designed your building.

You should not place Tyvek between roof framing and roof steel – as Weather Resistant Barriers (WRB) allow moisture to pass through. This could allow condensation to be trapped between your home’s WRB and roof steel, causing premature deterioration.