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We did a load test in 8th grade science class on plywood vs. OSB (this is roundabout 2001-2) and OSB supported roughly 50% that of plywood prior to failure.
Oh; let me guess. You supported a sheet between two sawhorses and started loading it up with whatever weight until it broke?
That's not the criteria it was designed for- SO throw your elementary "test" out the window.
Oh; let me guess. You supported a sheet between two sawhorses and started loading it up with whatever weight until it broke?
That's not the criteria it was designed for- SO throw your elementary "test" out the window.
Quote:
Originally Posted by ddm2k
If the saw horses were trusses and we're talking about loading up a clay tile or slate roof. If was any kind of roof leak, yeah, it would matter.
This is a silly argument. Of course a given thickness of OSB is not as strong as the same thickness of plywood. That is why you use them in different areas, for different purposes, with engineering tolerances built in.
As with all things in the world of construction, there are tradeoffs with strength (rigidity/flexibility/brittleness), cost, availability, labor required, appearance , weight, etc. Plywood is generally superior to OSB in all areas but cost, but you can save a lot using OSB, and for many purposes it is good enough.
This is a silly argument. Of course a given thickness of OSB is not as strong as the same thickness of plywood. That is why you use them in different areas, for different purposes, with engineering tolerances built in.
As with all things in the world of construction, there are tradeoffs with strength (rigidity/flexibility/brittleness), cost, availability, labor required, appearance , weight, etc. Plywood is generally superior to OSB in all areas but cost, but you can save a lot using OSB, and for many purposes it is good enough.
The cladding on the exterior of a home has nothing to do with how well it is insulated. Insulation ratings are based on zone regions.
As far as the brick having any R-value, call it very minimal at best!
R values are measured in relatively immediate heat transfer capacity. Brick (as opposed to wood) holds heat for a period of time, much longer than a 1/2 " wooden board. This is why, post war, in temperate climes with cold winters, in order to conserve heat, asbestos clad homes came into being. Asbestos reflects heat; wood doesn't so much.
R values, established to define insulation, don't directly apply to the difference between brick clad and wood clad. Only the insulation does. But, that insulation is only one of several factors involved in heat transfer of the wall of a house.
And then, separately, there's the noise transfer thing.
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