System components, Design / installation considerations – Metal Sales T-Armor Series User Manual
Page 44
© Metal Sales Manufacturing Corporation / Subject to change without notice 09/14
44
DESIGN / INSTALLATION CONSIDERATIONS (
cont
.)
Metal roofing panels are subject to dimensional changes after installation due to exposure to varying temperatures. The
greatest influence is solar energy. Steel roofing absorbs various amounts of heat depending upon color, finish, angle of
exposure and time of exposure.
The relationship of the roof temperature to building structural temperature must be considered when designing a T-Armor
roof system. The clips for the T-Armor panels are designed for expansion and contraction of the panels in the longitudinal
direction. Lateral expansion and contraction is accommodated by the configuration of the panel cross section and causes
negligible panel movement.
Every panel requires one fixed point to keep the panel in place. Do not install a panel with multiple fixed points. Multiple
fixed points will cause the thermal movement to damage the roof system.
SYSTEM EXPANSION / CONTRACTION
The T-Armor roof system can be installed with components that allow the panels to either float independently or fix perma-
nently to the substructure. Choice of system will depend upon building design and regional temperature range
(from summer highs to winter lows).
SELECTION OF SYSTEM COMPONENTS
T-Armor Standard Clip
The following chart should be used to determine proper fasteners required for clip installation on the selected applica-
tions. (See Fastener Selection Guide page 24 for other fasteners available.)
* Length of Deck Screw will vary depending on the total thickness of the rigid insulation and metal. (See page 24.)
** Contact your local Metal Sales branch representative for more information. (See pages 2 and 3.)
2 FASTENERS
2 FASTENERS
2 FASTENERS
CLIP OVER RIGID
INSULATION /
METAL DECK
2 FASTENERS
2 FASTENERS
1
/
4
"-14 x 1
1
/
2
" SELF DRILLER N/W
1
/
4
"-14 x 1
1
/
2
" SELF DRILLER N/W
#12-11x1
1
/
2
" LOW PROFILE WOOD SCREW
2 FASTENERS
NUMBER
REQUIRED
TYPE OF FASTENER
APPLICATION
INSTALLATION
REQUIREMENTS
24, 22 GA.
24, 22 GA.
**CLIP
SPACING
5'-0" O.C.
2'-0" O.C.
4'-0" O.C.
STANDARD
#12-11x1
1
/
2
" LOW PROFILE WOOD SCREW
.032" AL
2'-0" O.C.
CLIPS
OVER PURLINS
(16 GA. MIN)
CLIPS OVER
5
/
8
" WOOD DECK
#14-13 DECK SCREW *
24, 22 GA.
4'-0" O.C.
.032" AL
4'-0" O.C.
#14-13 DECK SCREW *
STANDARD
STANDARD
STANDARD
STANDARD
STANDARD
.032" AL
SYSTEM COMPONENTS
SYSTEM
CLIP
EAVE PLATE
RAKE ANGLE
THERMAL BLOCK
INSULATION
2
3
/
8
" UTILITY
2
3
/
8
"
1
/
4
" UTILITY
2
5
/
8
"
NONE REQUIRED
1
/
2
" TO 4" BLANKET
2
3
/
8
" LOW
2
3
/
4
"
3
/
8
" LOW
2
5
/
8
"
NONE REQUIRED
4" TO 6" BLANKET
2
3
/
8
" HIGH
3
3
/
4
"
1
3
/
8
" HIGH
3
1
/
8
"
1"
4" TO 6" BLANKET
3" UTILITY
3"
1
/
4
" UTILITY
3
1
/
8
"
NONE REQUIRED
1
/
2
" TO 4" BLANKET
3" LOW
3
3
/
8
"
3
/
8
" LOW
3
1
/
8
"
NONE REQUIRED
4" TO 6" BLANKET
3" HIGH
4
3
/
8
"
1
3
/
8
" HIGH
4
1
/
8
"
1"
4" TO 6" BLANKET
T-Armor Continuous Clip