How do the costs of both new and retrofit low slope GALVALUME standing seam roofs compare with traditional flat nonmetallic roofs?

By  selkoshairi on June 23, 2023


The many benefits offered by new and retrofit GALVALUME standing seam roofs (SSR) over traditional nonmetallic roofs translate into both direct and indirect cost savings. A retrofit GALVALUME SSR installed on a lightweight structural system over an old, leaking nonmetallic roof is a lower cost long-term alternative and, in many cases, a lower initial cost alternative if tear-off of the old nonmetallic roof is required. Benefits that translate into related cost savings result from the installation of additional insulation under the GALVALUME SSR, avoiding tear-off so that activities inside the building are not disrupted and disposal of nonmetallic material is not necessary.  This enables retrofit installations to be schedule on a year-round basis in almost all climates.

The initial cost of a new, low slope GALVALUME standing seam roof will generally be more expensive than a traditional flat nonmetallic roof, such as a built-up roof. However, if long term life cycle cost is considered, say, up to 60 years, the GALVALUME SSR will cost less than a nonmetallic roof. That’s because initial repairs for leaks on nonmetallic roofs are not unusual after only 8 or 10 years, and replacement by tear-off may be required after about 15 to 20 years. So, over the long term, a new GALVALUME SSR will cost less than a traditional nonmetallic roof. This lowered life cycle cost, resulting from the minimal maintenance required by a GALVALUME roof, is what makes steel roofing an appealing, affordable and long-lasting alternative to traditional asphalt, wood, tile and slate roof coverings.