Standing seam roofing/cladding system

A standing seam roofing/cladding system for mounting to a support structure comprising:

• a plurality of elongate pans having first and second lateral edges;
• a channel bracket, securable to the structure, including a base and first and second U-shaped arms defining first and second cavities opening towards the support structure;
• the first and second lateral edges including first and second hems extending away from the support structure and first and second legs extending from the first and second hems away from the support structure at first and second positions respectively, the first and second hems being captured within the first and second cavities;
• the first and second legs including first and second upper portions configured to engage one another to create a mechanically interlocked standing seam;
• and
• a batten cap including sides with lower ends and opposed lips at the lower ends sized and positioned to engage beneath the first and second positions to cover the standing seam.