While these buildings are good endorsements for the durability of metal roofs, there is a general downward price pressure in many industries, including roofing, to make products as cheap as possible. A common example used in the metal-roofing industry is the metal garden shed that became popular in the mid-1970s. While the product became more affordable, it rusted and didn't always hold up and customers lost interest. The industry barely exists anymore.
A properly applied metal roof is beautiful, functional and can be sold as a once-in-a-lifetime purchase. Here are some tips on making the roofs you install last.
Standard ‘drip' edge
‘C-D' edge (for layover applications)
Gable dormer ‘bow tie'
Vented ridge cap
Use of baffles
End-wall, chimney flashing
These techniques represent just one way to do residential and light-commercial roofing well. There are many good methods for achieving similar goals.