Flat Roof Attachment Tech Brief

Roof Type
Material Thickness Color Brand SKU
TPO 60mm White
Carlisle FRA-M60T-CA-W1
Firestone FRA-M60T-FS-W1
GAF FRA-M60T-GF-W1
Johns Manville FRA-M60T-JM-W1
PVC 60mm White GAF FRA-M60P-GF-W1
KEE 60mm White Carlisle FRA-M60K-CA-W1
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Tech Brief
Flashing Membrane Selection
Refer to table to see how regional conditions, tilt angle, and rail size impacts the span between attachments.
Structural Selection
Conditions Rail Span
Snow Angle Wind (MPH) 4’ 5’ 4” 6’ 8’ 10’ 12’
0 PSF
5°
110
130
160
10°
110
130
160
30°
110
130
160
10-20 PSF
5°
110
130
160
10°
110
130
160
30°
110
130
160
30-50 PSF
5°
110
130
160
10°
110
130
160
30°
110
130
160
XR10 XR100 XR1000
Refer to table for selecting proper roof membrane. Contact [e-mail] for approved alternatives.
Values based on 72-cell modules in Wind Exposure Category B (ASCE 7-10)
Henry’s 957 Sealant
(or similar)
Three-Course Method
(with roof coating)
Chem Link 9” E-Curb
Follow a Roofer’s
Recommendations
Other Sealing
Methods