Standing Seam Metal Roofing VS Snaplock/Prolock Metal Roofing
Recently I received a call from an out of town customer, with a question about metal roofing. His question was simple. “Why do some roofing contractors bid the roof replacement with standing seem metal. While others bid with Prolock/Snaplock roofing” My answer was very simple, I asked if the standing seem price was from a larger roofing company and was the price a lot higher, His answer was yes. It appears that this has become a marketing trick by some of the larger companies.
So what are the pro and cons of both systems, Standing seem metal roofing is generally more labor intensive and requires lots of special tools. Standing seem metal roofs do perform better in low pitch applications 3/12 and under. But this is where it ends for standing seem. Standing seem roofs are very hard to repair should a branch spear the roof. There is generally no manufacturer warranty on paint and should the company go out of business and your paint fails there isn’t a lot of recourse.
Prolock roofing is generally a lot less cost, provided it is bought from a reputable manufacturer it will have a warranty on paint. Prolock panels can easily be repaired should one become damaged. Prolock panels can uplift in the wind if it is not installed properly. While in the Cowichan Valley roofing we noticed a lot of substandard installations of Prolock panels. Prolock panels should always have a starter flashing that locks the panels down. Installing a starter flashing makes the roof installation a lot more labor intensive and is often skipped.