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Home My WebLink AboutDESIGN PRESSURE CALCULATIONSENGINEERING & TESTING, INC. Phone: (866) 781-6889 •Fax: (866) 784-8550 N-) SC wR-w.floridaengineeringandtesting.com ANNED 250S.W.13stAvenue BY Pompano Beach, FL 33069 - St. Lucie County DATE: 12/11/18 JOB ORDER #: 18-5524 CLIENT: Atlas Roofing ADDRESS: 851 S Deerfield Avenue Deerfield Beach, FL 33441 PROJECT: Spanish Lakes 1 Clubhouse Flat Wood Insulated Roof Decks (7) ADDRESS: 1 Silver Oak Drive Port Saint Lucie, FL 2017 FBC/ASCE-7 DESIGN PRESSURE CALCULATIONS Proiect Information: Height = 15' Exposure: C Length = 22' to 113' Category: 11 Width = 13' to 55' Slope: < 7° Parapet Wall: 0' to 3' Clubhouse Basic/Ultimate Wind Speed: V"e=170 mph Nominal Wind Speed: V,d=V it*40.6 (asd = allowable strength design) K, = 0.85, Kzt =1.0, Kd = 0.85 Note. The most conservative dimensions were'utilizedfor design calculations below. Design Calculations: Velocity Pressure: q = 0.00256*Y-jC tKdV2 Velocity Pressure (, t): q=0.00256(0.85)(1.0)(0.85)(170)2 = 53.45 psf Velocity Pressure (.d): q=0.00256(0.85)(1.0)(0.85)(170*�0.6)2 = 32.07 psf Width of Pressure Coefficient: 0.1(55') = 5.5' 0.4(15') = 6.0' } use: 5'6" Effective Wind Area: <lW For parapet height three feet (3') or larger, zone three (3) shall be treated as zone two (2). External Pressure Coefficient: Internal Pressure Coefficient: 1) GCP1 = -1.0 1) GCPi = 0.18 2) GCP2 = -1.8 3) GCP3 = -2.8 PAO Quality A'&.$asurance Page 2,12/11/18, Job Orde . -5524 Atlas Roofing Spanish Lakes 1 Clubhouse Flat Wood Insulated Roof Decks (7) 1 Silver Oak Drive; Port Saint Lucie, FL: Design Pressures Based on Va d: 1) Field P1 = 32.07*[(-1.0) — (0.18)] = -37.8 psf 2) Perimeter P2 = 32.07*[(-1.8) — (0.18)] = -63.5 psf 3) Corners P3 = 32.07* [(-2.8) — (0.18)] = -95.6 psf Attachment Requirements Per RAS-117: Based on the requirements of NOA # 17-1003.04, pg 12-13 of 42, System Type A(2), with a maximum design pressure of-52.5psf, the following are our recommended fastening patterns to attach the proposed anchor sheet to the 19/32" or greater plywood or wood plank deck (attached to structural supports per NOA) utilizing approved 11 ga. annular ring shank nails and tin caps: Field: 8" o.c. @ 4" laps and 3 staggered rows 8" o.c. Perimeter: 8" o.c. @ 4" laps and 4 staggered rows 8" o.c. Comers: 6" o.c. @ 4" laps and 5 staggered rows 6" o.c. Notes: Corners and perimeter area dimension shall not be less than a = 5'6" Contractor to verify that the fastening patterns meet manufacturer's requirements for issuance of a warranty (as applicable). All work shall be in compliance with the local building code product control notice of acceptance and manufacturer specifications and Florida Building Code 2017 Edition. Wind load calculations based on ASCE-7, 2017 FBC and information provided by client. Client is responsible for verifying existing/proposed conditions/decks as it pertains to the above provided product approval. All work shall be inspected by our field engineer (or authorized representative) or a building department inspector to verify compliance with specifications. Sincerely, Mark A. Mesiano, Florida Engineerir Florida Reg. No. 4 Certificate of Autt Attachment: Roof Zone Sketch Roof Zone Sketch Spanish Lakes 1 Clubhouse 1 Silver Oak Drive Port Saint Lucie, WIN& a=0.1 W=0.1 x 55 = 5.5' a=0.4H=0.4 x 15 = 6' Perimeter Dimensions = 5'6" U T-S- s. Zone 2 Perimeter = 5'6" x Length .Mk'S7ed F7771_ A' Zone 3 Corner = 5'6" x 516" f , �u b60, 30.' N ' � ' Zone2 ��'�•-�t, , , o , u•,r , � . _Zone 2 ' 3 , i:_•� "C'�_"-"`_ - ---- -- ------ , . • X. - 1 _ 1 3 ue 13 Nc 3.72573,- N " ;X ,Zone ENGINEERING & TESTING. INC. Phone: (866) 781-6889 *Fax: (866) 784-8550 -,vww.floridaengineeringandtesting.com 250 S.W.13`h Avenue Pompano.Beach, FL 33069 DATE: 7/03/18 JOB ORDER #: 18-2785 CLIENT: Atlas Roofing ADDRESS: 851 S Deerfield Avenue Deerfield Beach, FL 33441 PROJECT: Spanish Lakes 1 Clubhouse Flat Wood Roof Decks (7) ADDRESS: 1 Silver Oak Drive Port Saint Lucie, FL 2017 FBC/ASCE-7 DESIGN PRESSURE CALCULATIONS Project Information: Height = 15' Exposure: C Length = 22' to 113' Category: H Width = 13' to 55' Slope: < 7° Parapet Wall: 0'to 3' Clubhouse Basic/Ultimate Wind Speed: V,ac=170 mph Nominal Wind Speed: Vwd=V,at*40.6 (asd = allowable strength design) Kz = 0.85, Kzt =1.0, Kd = 0.85 Note: The most conservative dimensions were utilized for design calculations below. Design Calculations: Velocity Pressure: q = 0.00256*KXXdVZ Velocity Pressure (.it): q=0.00256(0.85)(1.0)(0.85)(170)2 = 53.45 psf Velocity Pressure (.d): q=0.00256(0.85)(1.0)(0.85)(170*40.6)2 = 32.07 psf Width of Pressure Coefficient: 0.1(55') = 5.5' 0.4(15') = 6.0' } use: 5'6" Effective Wind Area: <102 For parapet height three feet (3') or larger, zone three (3) shall be treated as zone two (2). External Pressure Coefficient: Internal Pressure Coefficient: 1) GCP1 = -1.0 1) GCPi = 0.18 2) GCP2 = -1.8 3) GCP3 = -2.8 Q U Quality ��3��V $smmmce Page 2, 7/03/18, Job Order #18-27C: - A/� Atlas Roofing F1i0 i7► Spanish Lakes 1 Clubhouse Flat Wood Roof Decks (7) 1 Silver Oak Drive; Port Saint Lucie, FL: Design Pressures Based on Vasa: 1) Field P1 = 32.07*[(-1.0)—(0.18)]=-37.8psf 2) Perimeter P2 = 32.07* [(-1.8) — (0.18)] _ -63.5 psf 3) Corners P3 = 32.07* [(-2.8) — (0.18)] _ -95.6 psf Attachment Requirements Per RAS-117: Based on the requirements of Florida Product Approval # FL2533-R19, Appendix 1, pg 14 of 57, System No. W-65, with a maximum design pressure of-45psf; the following are our recommended fastening patterns to attach the proposed base sheet to the min 19/32" exterior grade plywood deck (attached to structural supports per product approval) utilizing approved 11 ga. annular ring shank nails and 32 ga., 1-5/8" diameter tin caps: Field: 9" o.c. @ 4" laps and 2 staggered rows 12" o.c. Perimeter: 9" o.c. @ 4" laps and 3 staggered rows 9" o.c. Corners: 6" o.c. @ 4" laps and 3 staggered rows 6" o.c. Notes: Corners and perimeter area dimension shall not be less than a = 5'6" Contractor to verify that the fastening patterns meet manufacturer's requirements for issuance of a warranty (as applicable). All work shall be in compliance with the local building code product control notice of acceptance and manufacturer specifications and Florida Building Code 2017 Edition. Wind load calculations based on ASCE-7, 2017 FBC and information provided by client. Client is responsible for verifying existing/proposed conditions/decks as it pertains to the above provided product approval. All work shall be inspected by our field engineer (or authorized representative) or a building department inspector to verify compliance with specifications. Sincerely, \\\�\\4 --IMF ///// i �. wa.48202 ;C) Mark A. MesiaAo;� I * I — Attachment: Florida Enginei '& T otc. uj` Roof Zone Sketch Florida Reg. No�8Pb2 F� topyj �;y2\� Certificate of PO a, \�\ ��/11111111\\\\� Roof Zone Sketch P .20' Spanish Lakes 1 Clubhouse' K+ 3;___Zone 2___-__- 1 Silver Oak Drive a, N Port Saint Lucie, FL �� N 2 , 3 lr I-�.-'_ a=0.1 W=0.1 x 55 = 5.5' a=0.4H=0.4 x 15 = 6' 1 Perimeter Dimensions = 5'6" j ��, =x /♦Yt . 3' 3Zone 2 � I . ll 2 ` 0; }Sf• _J-------------- Zone 2 Perimeter = 5'6" x Length 'J- el: ; Zone 3 Corner = 5'6" x 51611 N' �3 a 1 y L______ _________,.-_ ra 3; Zone 2 3 r N; , !�v �. s 50` as � _-a 1 •fir 13 6.;iz6ne 4 113' Zo'neb2 ` t, ,3 N ; N —'-----------------------------— --------- — .;`IN . 'Zone i 5� Ni ^ B }. �'��;p p�1 ' 1