Low Slope Copper Roof

Lapped nonsoldered seam metal roofs without applied lap sealant must have a minimum roof slope of 3 12 25 slope.

Low slope copper roof.

For a long span roof utilizing multiple seamed pan lengths transverse seams are required. These are soldered interlocking systems of metal panels. Low slope metal roofs require less material which reduces the overall load on the building s structure. Copper and stainless steel can be used for low slope roofs but a fair amount of planning is involved.

A more expensive low slope or flat roof option include sealed metal roofs using copper or tin. Flat seam roofing systems are typically used on roofs that are flat or have a low pitch or alternatively on very steep slopes. The minimum roof slope for metal roof panels depend on 3 different scenarios. Low slope metal roofs have simple geometries and are easier and less expensive to install that medium to steep slope roofs.

Today it is rather rare that an entire roof gets covered with copper. Instead only sections such as towers porches bay windows and low slope sections copper with soldered seams get copper for looks or waterproofing purposes. See example table 8 8a. Low slope structural roofing generally used on roof pitches ranging from 12 to 3 12 consists of interlocking panels commonly called standing seam roofing that run vertically along the roof surface.

This means for every 12 horizontal units the roof must rise a minimum of 3 vertical units. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. For roof slopes less than 6 on 12 the upper roof pan is attached to a locking strip soldered to the lower pan. Rectangular cold rolled copper sheets.

An average sized copper roof will cost between 30 000 to 60 000 or even more to install. These panels generally come with a painted mill finish or a clear acrylic finish. Low slope metal panel roofing may be a standing seam roof ssr through fastened roof tfr or insulated metal panel imp roof. The lower pan is cleated to the roof deck with the indicated clearances determined by expansion calculations.

Traditionally low slope or flat roofs would use a built up tar and gravel roof but today this traditional type of roofing suffers from performance cost environmental concerns requiring better value solutions. Flat seam roofing is constructed of 18 by 24 20 oz.