Instructions / Assembly
25
The overall dead load of the cladding along with project’s live loads will generally govern the attachment structural requirements.
In tall, multistory projects, load-bearing lateral supports, shelf angles, or similar supports may also be utilized in the structural design,
even when considering the attachment of continuous insulation. Though research has shown system creep to be minimal, design
considerations of certain projects may require intermediary structural supports to transfer accumulated dead loads back to the
structure. Load studies have demonstrated that every 7 pounds of dead load per fastener equates to approximately 100 pounds of
total dead load. The product weights of all Owens Corning
®
®
RainBarrier
®
continuous insulation products are provided
to help determine if shelf angles or similar supports should be considered. If load-bearing lateral supports are determined to be
and thermal bridging.
Lateral Support Examples
Thermaber
®
Continuous Insulation Product Weight
INSULATION
THICKNESS
RAINBARRIER
®
45
RAINBARRIER
®
HD
RAINBARRIER
®
HIGH
COMPRESSIVE (80)
RAINBARRIER
®
HIGH
COMPRESSIVE PLUS (110)
RAINBARRIER
®
HIGH
COMPRESSIVE MAX
1 in. 0.38 lbs./ft.² 0.50 lbs./ft.²
N/A N/A
0.92 lbs./ft.²
1.25 in. N/A N/A
N/A 0.83 lbs./ft.²
N/A
1.5 in. 0.56 lbs./ft.² 0.75 lbs./ft.²
0.88 lbs./ft.² 1.00 lbs./ft.²
1.38 lbs./ft.²
2 in. 0.75 lbs./ft.² 1.00 lbs./ft.²
1.17 lbs./ft.² 1.33 lbs./ft.²
1.83 lbs./ft.²
2.5 in. 0.94 lbs./ft.² 1.25 lbs./ft.²
1.46 lbs./ft.² 1.67 lbs./ft.²
2.29 lbs./ft.²
3 in. 1.13 lbs./ft.² 1.50 lbs./ft.²
1.75 lbs./ft.² 2.00 lbs./ft.²
2.75 lbs./ft.²
3.5 in 1.31 lbs./ft.² 1.75 lbs./ft.²
2.04 lbs./ft.² 2.33 lbs./ft.²
3.21 lbs./ft.²
4 in. 1.50 lbs./ft.² 2.00 lbs./ft.²
2.33 lbs./ft.² 2.67 lbs./ft.²
3.67 lbs./ft.²
4.5 in. 1.69 lbs./ft.² 2.25 lbs./ft.²
N/A 3.00 lbs./ft.²
N/A
5 in. 1.88 lbs./ft.² 2.50 lbs./ft.²
N/A 3.33 lbs./ft.²
N/A
5.5 in. 2.06 lbs./ft.² 2.75 lbs./ft.²
N/A 3.67 lbs./ft.²
N/A
6 in. 2.25 lbs./ft.² 3.00 lbs./ft.²
N/A 4.00 lbs./ft.²
N/A
6.5 in. 2.44 lbs./ft.² 3.25 lbs./ft.²
N/A 4.33 lbs./ft.²
N/A
7 in. 2.63 lbs./ft.² 3.50 lbs./ft.²
N/A 4.67 lbs./ft.²
N/A
Note: Attachments shall be designed to withstand all combined applied loads, including wind loads and dead loads (insulation, fasteners, all cladding and
cladding support materials).
ATTACHMENT AND SUPPORT
Stacking Guidance