PRO SEAM UL90 REQUIREMENTS
FOR PRE-ENGINEERED METAL BUILDINGS

 

 

 

FIXED SYSTEM CONSTRUCTION #205

1.  Metal panels - 24 gauge or heavier, 24", 18", or 12" wide panels continuous over two or more spans
2.  Panel clips - fixed (high, low, utility)
3.  Fasteners - two per clip.
4.  Purlin - minimum 16 gauge, minimum yield strength 55 KSI, maximum spacing 5'-0" on center.
5.  Optional accessories - insulation (maximum thickness 6"), thermal spacer (for use with high systems).

 

 

FLOATING SYSTEM CONSTRICTION #205A

1.  Metal panels - 24 gauge or heavier, 24", 18", or 12" wide panels continuous over two or more spans
2.  Panel clips - fixed (high or low)
3.  Fasteners - one per clip except when optional skylights are used.
4.  Purlin - minimum 16 gauge, minimum yield strength 55 KSI, maximum spacing 5'-0" on center.
5.  Optional accessories - insulation (maximum thickness 6"), thermal spacer (for use with high systems), skylights (insulated or uninsulated) with stiffener plate.

 

 

C A U T I O N

 

For UL 90 rated roofs, these requirements must be followed.  If you have any questions, please call Dean Steel Buildings, Inc., before proceeding.

·

Diaphragm capabilities and purlin stability are not provided by Dean’s

ProSeam roof system.  Therefore, other bracing may be required to

conform to A.I.S.C. or A.I.S.I. specifications.

 

 

 

 

                                                                                IMPORTANT

 

It will greatly facilitate designing, quoting, ordering, and/or erecting the Dean Pro Seam roof if you determine which system you need or have, based on the building width and insulation requirements.

FIXED

FLOATING

BUILDING WIDTH
DOUBLE SLOPE 200’ WIDE OR LESS
SINGLE SLOPE 100’ WIDE OR LESS

BUILDING WIDTH
DOUBLE SLOPE OVER 200’ WIDE
SINGLE SLOPE OVER 100’ WIDE

 

LOW FIXED
Without 1” thermal spacer for added insulation

LOW FLOATING
Without 1” thermal spacer for added insulation

HIGH FIXED
With 1” thermal spacer for added insulation

HIGH FLOATING
With 1” thermal spacer for added insulation

NOTE:

1.  The above applies to pre-engineered metal buildings.

2.  Bar joist construction (all widths) requires a floating system.

3.  As with all standing seam roof systems, a sound insulator (e.g. blanket insulation) is

     required between the panel and substructure.
4.  Pro Seam is a snap lock system.  Use of a mechanical seaming device will void all warranties.

  

Thermal Spacer Selection Chart

For use over blanket insulation installed over purlins or joists

 

Low System

High System

No Insulation

3/8” Thermal Spacer

N/A

3” Insulation

 3/8” Thermal Spacer*

 1”   Thermal Spacer

4” Insulation

N/A

5/8” Thermal Spacer

6” Insulation

N/A

3/8” Thermal Spacer

*May cause bulge at purlins.  Do not use if aesthetics are a concern.
 

CAUTION

Never Use a  Hammer to force the panels to snap together.  This will cause severe damage to the panel and will nullify any warranties.