
Panel Joinery
April 19, 2019
ATAS International provides an extensive line of metal roof and wall panels that utilize various panel joinery systems to provide the best choice for your project.
Wall Systems
- Wind-Lok
- Slip joint
- Lap panel
- 4-way interlock
Roof Systems
- Wind-Lok
- 2-piece Snap-On cap
- Integral panel
- Compression fit
- Field-seamed
- Lap panel
Types of Panel Joinery:
Wind-Lok
- Concealed fastener
- Does not allow for expansion and contraction
- Positive and negative pressures make joint tighter
Slip Joint
- Concealed fastener
- Does not allow for expansion and contraction
- Positive and negative pressures create the possible disengagement of panel
Overlap
- Concealed fastener
- Does not allow for expansion and contraction
- Positive and negative pressures create the possible disengagement of panel
Snap-On Separate Cap
- Clip allows for expansion and contraction
- Small water leg that can allow for water infiltration
Snap-On Integral Panel
- Pan and cap are all one unit
- Snap together, Wind-Lok design
- High water leg
Field Seamed
- If using movable clips, the joint allows for expansion and contraction
- Watertight system
4-Way Lock
- Panel interlocks on all four sides
Panel Lap Joint
- Used when overlapping roofing panels in a long run
Panel Splice Joint
- Used when splicing wall panels in a long run
Panel Over Lap with Notch
- Used when overlapping panels in a long run