Typical pole barn construction involves steel roofing and/or
siding. If yours does we
have some suggestions for you. The most common gauge steel
panels used are 29
gauge. 26 gauge is thicker (upgrade) being
typically used on
commercial structures and places with unusual requirements.
Here are some features and requirements we follow when choosing
steel panels.
- 40 year manufacturer warranty
- Company in business 25 years or longer
- Written warranty card
- Full trim package available covering all otherwise exposed
wood
No doubt about it. 10 or 20 year metal from local roll formers
costs less. So does
foreign metal, much of which has been proven to have quality issues
(29 gauge isn't
really 29 gauge). We know where to buy it, just choose not to.
Our goal is to purchase from manufacturers that:
- Stand behind a written warranty
- Will most likely be in business 40 years from purchase
- ASTM A792 Grade E 80,000 minimum tensile strength or better
- Use manufacturing processes providing consistent product
- Wrapped to prevent damage in shipment
There is a difference in the metal panels out there. Cheap
metal will rust, peel, and
chip easily. Trying to closely match the cheap stuff (if its
still available when you need it)
to repair damage is virtually impossible. Perhaps more importantly ....
Diaphragm Action
One of the chief advantages achieved with steel panel roofing and
siding is creating an
effective diaphragm. A diaphragm design allows
light weight structures to resist lateral
loads (wind) much better than other types of structures.
Properly installed steel panels,
of the proper tensile strength,
makes for a bullet proof,
strong structure. This requires using the right number of screws (on center),
the right size screws, and proper tensile strength metal.
Tests conducted at Cornell University discovered that properly affixed
steel sheathing reduced deflection of their test building from
6.1 inches
to
0.44 inches under a given load!
Summary
We believe that foundation wood, roofing and siding, and the doors
you choose for your
building are the most important components in your building. All
three take the most
abuse during the building life cycle.
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