Description

This bulletin outlines the joint design parameters for sealant joints between cladding elements.

Scope

The bulletin covers:

• sealant joint types
• joint design
• weatherproofing performance
• environmental issues
• irreversible shrinkage
• inaccuracies arising from manufacture and construction
• fit problems
• sealant width-to-depth ratio
• back-up materials and bond breakers
• installation
• calculation of joint width.