CAUTION

Application and design details are for illustration purposes only, and may not be appropriate for all environmental conditions or building designs. Projects should be engineered to conform to applicable building codes, regulations, and accepted industry practices.

CAUTION

The use of any field seaming machine other than that provided by ASBC will damage the panels and void all warranties.

It will greatly facilitate DESIGNING, QUOTING, ORDERING, or ERECTING the ASBC Double-Lok® roof if you determine which system you need based on insulation requirements. Listed below are the differences between the low and high systems.

LOW SYSTEM	HIGH SYSTEM
3/8" Clearance between panel and purlin Without 1" Thermal Spacer for added Insulation	1 3/8" Clearance between panel and purlin With 1" Thermal Spacer for Added Insulation
LOW CLIP LOW RAKE SUPPORT	HIGH CLIP HIGH EAVE PLATE HIGH RAKE SUPPORT

Floating clips have a maximum of 1" movement each direction. Articulating clips have a maximum movement of 1 1/4" each direction. Thermal calculations should be performed for each project to ensure that the thermal movement of the roof is not more than the clips can handle.

FOR ROOF PITCHES GREATER THAN 4:12, CALL ASBC

NOTES:
1. As with all standing seam roof systems, a sound insulator (EXAMPLE: blanket insulation) is required between the panel and substructure. Some composite systems require additional acoustical consideration. Call ASBC for further information.
2. All metal roofs should be designed by a registered, professional engineer for loads specified by the governing code, including the higher pressures encountered at the edge zones of the roof.

Thermal Spacer Selection Chart
For use over blanket insulation (.60 pcf maximum density) installed over purlins or joists

Low System

High System

No Insulation
3" Insulation
4" Insulation
6" Insulation

3/8" Thermal Spacer
No Thermal Spacer Required
N/A
N/A

N/A
1" Thermal Spacer
5/8" Thermal Spacer
3/8" Thermal Spacer