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MEMBRANE ATTACHMENT CALCULATIONS
Project Name Liberty Scrap Facility Report No.: ATRT-MB-18.109
Project Address 417 Angle Road
Fort Pierce, FL
Deck
Wood
Mean Roof Height 16.0 Feet
Configuration rte ow Slope t5coy d Roof Area (Approx.) 5675 Sq.Ft.
Category II 8 G0 01 Roof Width 75.5 Feet
Exposure Condition C St �UCt6 Perimeter Width 6.0 Feet
Building Type Enclosed Parapet Height 1.0 Feet
Base Wind Speed 170 mph Corner Zones 6' x 6' Each
Slope V 0.0 Slope H 12.0 Slope Angle° 0.00
Uplift Pressures qz = 0.00256 K� Kr Kd V2 P = % (GCP - GCP;)
qz K. Kai Kd V GCP GCPi
53.721 0.850 1.005 0.85 170 -1.00 0.18 Field
-1.80 0.18 Perimeter
-2.80 0.18 Corner
Field P1 aii, -63.39 psf P1 asd -38.03 psf
Perimeter P2ait.-106.37 psf P2asd -63.82 psf
Corner P3an.-160.09 psf P3asd -96.05 psf
Proposed System VersiWeld TPO Single Ply Roof Systems
Product Approval No. FL14207-R17 (Page 8 of 64) System No. W-20
System Design Pressure -45 psf
Membrane Full Width 120 inches Side Lap 5.5 inches Net Width 114.5 inches
Membrane Red. Width 63 inches Side Lap 5.5 inches Net Width 57.5 inches
Membrane Red. Width 60 inches Side Lap 5.5 inches Net Width 54.5 inches
Fasteners Carlisle HP-X Fasteners and Piranha Plates
Fastener Spacing in Lap of Membrane 6 inches # Rows 1
Min. Characteristic Resistance Force-214.69 Ibf
Fastener Spacing {(MCRF/Pi) x 1441/Row Spacing
Membrane Full Width Reduced Width Addl. Reduced Width
Field Fastener Spacing 7.10 14.14 14.91
Perimeter Fastener Spacing 4.23 8.42 8.89
Corner Fastener Spacing 2.81 5.60 5.91
RECOMMENDED MEMBRANE FASTENING PATTERN
Field Rows (Laps) @ 114.5" o.c. Full Width Membrane 6 inches on center along laps
Perimeter Rows (Laps) @ 57.5" o.c. Reduced Width Membrane 6 inches on center along laps
Corner Rows (Laps) @ 57.5" o.c. Reduced Width Membrane 5 inches on center along laps
These calculations have been done in accordance with ASCE 7-10, based on the information provided by the
contractor. The roof system,must be installed in accordance with the FBC & manufacturer's recommendations.
Ensure that roof, system meet all life and fire safety requirements of the Florida Building Code, before installation.
Sincerely,: -,..
For�ic Engineerigg,Co6s6bnts,, Inc...
A>. C
R. N. Sailappari;.P.�, (�, •�OI-.
Principal Engineer,.,
Florida Registration No.*46696 ,
Forensic Engineering Consultants, Inc. (CA # 8265), P.O. Box 970034, Boca Raton, FL - 33497 Ph (561) 901 8490 Fax (561) 218 3830