Is Particle Board Used On Roofs

Particle board in modern homes is required to be visibly marked as astm type 2 m w.

Is particle board used on roofs. A homeowner recently wrote and asked me the following regarding osb roof decking. Particle board comes in several thicknesses which make it a versatile enough product to be used in roofing. Osb is widely used as roof decking material. By chris deziel oriented strand board isn t plywood nor is it a type of particleboard fiberboard or wafer board and although it is a newcomer to a plywood dominated market its use for exterior.

Although oriented stranded board osb has similar uses to plywood it has a much coarser finish. It has this particle board for the roof my dad the smartest man i have ever known said particle board is actually illegal but it was alot cheaper so he did the shed with particle board inside of plywood. Treated lumber is often used as the main material with thin sheets of treated particle board being placed on top and then shingles are attached. Uses of particle board in commercial industry.

However with osb the layers are more cross oriented. If not of a type approved for use as roof sheathing particle board strength and stability when exposed to moisture is significantly lower than that of plywood or oriented strand board osb more commonly used for this application. 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. Like particle board and mdf osb comes from wood shavings.

We form the layers by shredding wood and then joining them together with adhesive. There are soft spots in the flat roof.