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HomeMy WebLinkAboutEMAILr ATLAS Structural Engineering, LLC August 27, 2018 Mr. Ed Marrero Sutter Roofing Company of Florida 2661 Old Winter Garden Road Orlando, FL 32805 SCANNED BY Re: Tropicana Fort Pierce St. Lucie County Fruit Processing Building Atlas Job No. 18008.04 Dear Ed: FO Box #101578 i Cape Coral, Florida 33910-1578 phone 239.274.6820 i CA #28380 Atlas Structural Engineering, LLC (Atlas) is pleased to provide this report of the fastening patterns required for attachment of single -ply roofing membrane and coverboard to existing steel roof deck on the Tropicana Fruit Processing Building located at 6500 Glades Cut Off Road in Fort Pierce, Florida. The Fruit Processing Building is located near the eastern edge of the property, south of the Feed Mill. Factory Mutual Criteria and Design Wind Pressures As requested, Factory Mutual (FM) recommendations for installing mechanically fastened single -ply roof covers, and design wind pressures determined in accordance with FM Data Sheet 1-28, were used to determine the fastener patterns provided in this report. The following criteria were used: • Basic Wind Speed: V = 135 mph (Per FM Global Plan Review Letter No. 262419 Resubmittal) • Exposure: C • Internal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) According to FM 1-28 Table 4, the Roof Field Area (Zone 1) Uplift Design Pressure is equal to 53 psf. Using the criteria and field pressure provided above, the recommended FM Approval rating for the system to be used in the Field Roof Area (Zone 1) is FM 1-120. The corresponding design pressures are as follows: • Roof Field Area = -60.0 psf • Roof Perimeter Area = -90.0 psf • Roof Corner Area = -135.0 psf The pressures stated above meet or exceed the nominal Components and Cladding uplift pressures determined in accordance with ASCE 7-10, Chapter 30, using the following criteria: • Ultimate Wind Speed: Vmc = 169 mph • Nominal Wind Speed: Vasd = 131 mph • Exposure: C - Risk Category: Category II, Ill or IV • Internal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) Pressures are allowable and include ASCE 7-10 Allowable Stress Design (ASD) load factor of 0.6. Pressures were determined for a building with a flat roof, a maximum roof height of 30'-0" and a minimum overall width of 220'-0". See FM Global Plan Review Letter No. 262419 Resubmittal dated December 21, 2017 for edge distances and additional information. Tropicana Fort Pierce I Page 1 of 3 Fruit Processing Building ATLAS STRUCTURAL ENGINEERING, LLC PO Box # 101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 Single -Ply Fastening to Steel Deck FiberTite Magnum Fasteners with FiberTite Magnum or Magnum -Plus Stress Plates shall be used to attach 45 mil FiberTite Single -Ply roofing membrane through new 1/2" Hunter H-Shield HD coverboard and existing insulation to existing steel roof deck. Fasteners shall be corrosion resistant and each fastener must penetrate through the top flange of the steel deck a minimum of 3/4". The attachment of the single -ply roofing membrane shall be as follows: Zone 1 Provide whole sheets (6-2" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps which are spaced at 69" o.c. maximum. Zone 2 (Parallel) Sheets Parallel to Eave: Provide three half sheets (3'-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Alternately, one row of fasteners spaced at 6" o.c. in the center of whole sheets may be used. Fastener rows shall be approximately 34.5" o.c, maximum. Zone 2 (Perp.) Sheets Perpendicular to Eave: Within each whole sheet provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Fastener rows shall be approximately 34.5" o.c. Extend center row of fasteners a minimum of 8'-0" in from the parapet or edge of roof. Zone 3 Provide three half sheets (T-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Within each half sheet, provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Alternately, three equally spaced rows of fasteners spaced at 6" o.c. in whole sheets may be used. Fastener rows shall be approximately 17.25" o.c. maximum. Extend center rows of fasteners a minimum of 8'-0" in from the parapet or edge of roof. All Zones Each lap shall be sealed with a minimum 1.5" wide outside heat weld. Center row of fasteners shall be stripped -in with a 6" wide cover strip. Each edge of the cover strip shall be sealed with a minimum 1.5" wide heat weld. Fastener rows shall be installed perpendicular to steel deck flutes. Sheets shall not be "picture framed" unless the deck orientation changes. See Product Approval, FM Global Plan Review Letter and FiberTite literature and details for additional installation requirements. The new 1/2" coverboard shall be preliminarily fastened to the steel roof deck with FiberTite Insulation Fasteners and 3" Stress Plates. Provide six (6) fasteners and plates per 4'x8' board (minimum) or four (4) fasteners and plates per 4'x4' board (minimum) prior to placing the membrane. On -site withdrawal tests were performed at random locations to determine the average ultimate pullout value and to evaluate the ability of the roofing substrate to satisfactorily accept and retain the fasteners. The — fastener -patterns provided above were reviewed for an average ultimate pullout value of 667 Ibs per fastener, with a margin of safety for uplift resistance equal to 2.0. As requested, the fastening patterns provided above were extrapolated from the tested assembly fastener pattern provided in Miami Dade Notice of Acceptance (NOA) No.: 16-0518.08, Page 61 of 75, and do not exceed the force per fastener determined using the above stated Product Approval and allowable pullout value. Tropicana Fort Pierce I Page 2 of 3 Fruit Processing Building ATLAS STRUCTURAL ENGINEERING, LLC PO Box #101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 Limitations The scope of this investigation does not include analysis of the load carrying capacity of these structures, and the fastener patterns provided in this report are based on the materials and fasteners stated above, provided by Sutter Roofing at the time of this investigation. Design wind pressures were determined using information regarding the location and overall dimensions of the structures provided by Sutter Roofing. Follow all state, county and local codes and ordinances, and all manufacturer and roofing standard installation requirements. Please do not hesitate to contact our office if you have any questions. Sincerely, :Atlas Structural Erjgirieering, LLC . f=i3-fq Robin W. Stephan, P.E. #66525 President Tropicana Fort Pierce I Page 3 of 3 Fruit Processing Building ATLAS Structural Engineering, LLC August 27, 2018 Mr. Ed Marrero Sutter Roofing Company of Florida 2661 Old Winter Garden Road Orlando, FL 32805 Re: Tropicana Fort Pierce Electrical Vault Building Atlas Job No. 18008.04 Dear Ed: PO Box # 101578 i Cape Coral, Florida 33910-1578 phone 239.274.6B20 I CA #28380 Atlas Structural Engineering, LLC (Atlas) is pleased to provide this report of the fastening patterns required for attachment of single -ply roofing membrane and coverboard to existing steel roof deck on the Tropicana Electrical Vault located at 6500 Glades Cut Off Road in Fort Pierce, Florida. The Electrical Vault is located near the eastern edge of the property and is attached to the Citrus Assembly Building, south of the Feed Mill. Factory Mutual Criteria and Design Wind Pressures As requested, Factory Mutual (FM) recommendations for installing mechanically fastened single -ply roof covers, and design wind pressures determined in accordance with FM Data Sheet 1-28, were used to determine the fastener patterns provided in this report. The following criteria were used: • Basic Wind Speed: V = 135 mph (Per FM Global Plan Review Letter No. 262419 Resubmittal) • Exposure: C • Internal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) According to FM 1-28 Table 4, the Roof Field Area (Zone 1) Uplift Design Pressure is equal to 53 psf. Using the criteria and field pressure provided above, the recommended FM Approval rating for the system to be used in the Field Roof Area (Zone 1) is FM 1-105. The corresponding design pressures are as follows: • Roof Field Area = -52.5 psf • Roof Perimeter Area = -82.5 psf • Roof Corner Area = -127.5 psf The pressures stated above meet or exceed the nominal Components and Cladding uplift pressures determined in accordance with ASCE 7-10, Chapter 30, using the following criteria: • Ultimate Wind Speed: Vint =169 mph • Nominal Wind Speed: Vasa = 131 mph • Exposure: C • Risk Category: Category II, III or IV • Internal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) Pressures are allowable and include ASCE 7-10 Allowable Stress Design (ASD) load factor of 0.6. Pressures were determined for a building with a flat roof, a maximum roof height of 20'-0" and a minimum overall width of 220'-0". See FM Global Plan Review Letter No. 262419 Resubmittal dated December 21, 2017 for edge distances and additional information. Tropicana Fort Pierce I Page 1 of Electrical Vault Building ATLAS STRUCTURAL ENGINEERING, LLC PO Box # 10 1578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 Single -Ply Fastening to Steel Deck FiberTite Magnum Fasteners with FiberTite Magnum or Magnum -Plus Stress Plates shall be used to attach 45 mil FiberTite Single -Ply roofing membrane through new 112" Hunter H-Shield HD coverboard and existing insulation to existing steel roof deck. Fasteners shall be corrosion resistant and each fastener must penetrate through the top flange of the steel deck a minimum of 3/4". The attachment of the single -ply roofing membrane shall be as follows: Zone 1 Provide whole sheets (6-2" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps which are spaced at 69" o.c. maximum. Zone 2 (Parallel) Sheets Parallel to Eave: Provide two half sheets (T-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Alternately, one row of fasteners spaced at 6" o.c. in the center of whole sheets may be used. Fastener rows shall be approximately 34.5" o.c. maximum. Zone 2 (Perp.) Sheets Perpendicular to Eave: Within each whole sheet provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Fastener rows shall be approximately 34.5" o.c. Extend center row of fasteners a minimum of 3'-0" in from the parapet or edge of roof. Zone 3 Provide two half sheets (3'-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Within each half sheet, provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Alternately, three equally spaced rows of fasteners spaced at 6" o.c. in whole sheets may be used. Fastener rows shall be approximately 17.25" o.c. maximum. Extend center rows of fasteners a minimum of 3'-0" in from the parapet or edge of roof. All Zones Each lap shall be sealed with a minimum 1.5" wide outside heat weld. Center row of fasteners shall be stripped -in with a 6" wide cover strip. Each edge of the cover strip shall be sealed with a minimum 1.5" wide heat weld. Fastener rows shall be installed perpendicular to steel deck flutes. Sheets shall not be "picture framed" unless the deck orientation changes. See Florida Product Approval and FiberTite literature and details for additional installation requirements. The new 1/2" coverboard shall be preliminarily fastened to the steel roof deck with FiberTite Insulation Fasteners and 3" Stress Plates. Provide six (6) fasteners and plates per 4'x8' board (minimum) or four (4) fasteners and plates per 4'x4' board (minimum) prior to placing the membrane. On -site withdrawal tests shall be performed at random locations to determine the average ultimate pullout value and to evaluate the ability of the roofing substrate to satisfactorily accept and retain the fasteners. The fastener patterns provided above were determined using an average ultimate pullout value of 345 Ibs per fastener, with a margin of safety for uplift resistance equal to 2.0. As requested, the fastening patterns provided above were extrapolated from the tested assembly fastener pattern provided in Miami Dade Notice of Acceptance (NOA) No.: 16-0518.08, Page 61 of 75, and do not exceed the force per fastener determined using the above stated Product Approval and allowable pullout value. Tropicana Fort Pierce I Page 2 of Electrical Vault Building ATLAS STRUCTURAL ENGINEERING, LLC PO Box #101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 Limitations The scope of this investigation does not include analysis of the load carrying capacity of these structures, and the fastener patterns provided in this report are based on the materials and fasteners stated above, provided by Sutter Roofing at the time of this investigation. Design wind pressures were determined using information regarding the location and overall dimensions of the structures provided by Sutter Roofing. Follow all state, county and local codes and ordinances, and all manufacturer and roofing standard installation requirements. Please do not hesitate to contact our office if you have any questions. Sincerely, Atlas Structural Engineering, LLC z3-r9 Robin W. Stephan, P.E.466525 President Tropicana Fort Pierce I Page 3 of 3 Electrical Vault Building r y., ATLAS Structural Engineering, LLC January 14, 2019 Mr. Ed Marrero Sutter Roofing Company of Florida 2661 Old Winter Garden Road Orlando, FL 32805 Re: Tropicana Fort Pierce Fruit Processing and Electric Vault As -Built Review Atlas Job No. 18008.04 To Whom It May Concern: PO Box #101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 As per your request, Atlas Structural Engineering, LLC (Atlas) has reviewed the in -progress and as -built photographs for attachment of coverboard and single -ply roofing membrane to existing steel roof deck on the Tropicana Fruit Processing Building and Electric Vault Building, located at 6500 Glades Cut Off Road in Fort Pierce, Florida. The purpose of our review is to verify of the as -built fastening patterns are structurally adequate to resist the wind uplift pressures required for this building. Coverboard Attachment Findings The coverboard' was preliminarily mechanically fastened through existing insulation to existing steel roof decking using six (6)fasteners board. See page 3 for in -progress photographs of the coverboard installation. Sutter Roofing has stated that the coverboard is 1/2" Hunter H-Shield HD coverboard and the fasteners are Fibertite Insulation Fasteners with 3" Stress Plates and 3/4" minimum penetration into the steel roof deck. After reviewing the in -progress photographs and the attached affidavits from the contractor whom performed the work ("As -Built Condition for Tropicana Fruit ProcessingBuilding" by Sutter Roofing dated 01/14/2019 and "As -Built Condition for Tropicana Electric Vault Building" by Sutter Roofing dated 01/14/2019), it is our opinion attachment of the coverboard is installed in accordance with the FM Global Plan Review Letter and Roofing Engineering Letters. Single -Ply Attachment Findings The single -ply membrane is mechanically fastened through the coverboard and 'insulation to existing steel roof deck. See pages 3-6 for in -progress and as -built photographs of the single -ply installation. Sutter Roofing has stated that the single -ply membrane is Fibertite 45 mil membrane and the fasteners are Fibertite Magnum Fasteners with Magnum -Plus Stress Plates and 3/4" minimum penetration into the steel roof deck. According to Sutter Roofing, and as shown in the in -progress and as -built photographs, the single -ply membrane is mechanically fastened as follows: • Zone 1 fasteners were spaced at 6" o.c. in rows not greater than 69" o.c. • Zone 2 fasteners were spaced at 6" o.c. in rows not greater than 34.5" o.c. • Zone 3 fasteners were spaced at 6" o.c. in rows not greater than 17.25" o.c. After reviewing the in -progress and as -built photographs, and the attached affidavits from the contractor whom performed the work ("As -Built Condition for Tropicana Fruit Processing Building" by Sutter Roofing dated Tropicana Fort Pierce I Page 1 of 6 Fruit Processing and Electric Vault As -Built Review ATLAS STRUCTURAL ENGINEERING, LLC PO Box#101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 01/14/2019 and "As -Built Condition for Tropicana Electric Vault Building" by Sutter Roofing dated 01/14/2019), it is our opinion attachment of the single -ply membrane is installed in general conformance with the FM Global Plan Review Letter and Roofing Engineering Letters, and is therefore adequate to resist the wind uplift pressures determined in accordance with the 6th Edition Florida Building Code and ASCE 7-10. Summary Minimum fastening patterns required for the coverboard and single -ply roof covering attachment were provided in the FM Global Plan Review Letter No. 262419 Resubmittal dated December 21, 2017 and the Roofing Engineering Letters "Tropicana Fort Pierce — Fruit Processing Building" by Atlas dated August 27, 2018, and "Tropicana Fort Pierce — Electric Vault Building" by Atlas dated August 27, 2018. After reviewing the contractor's in -progress and as -built construction photographs and the attached affidavits from the licensed contractor that performed the work ("As -Built Condition for Tropicana Fruit Processing Building" by Sutter Roofing dated 01/14/2019 and "As -Built Condition for Tropicana Electric Vault Building" by Sutter Roofing dated 01/14/2019), it is our opinion that the coverboard and single -ply have been installed in general conformance with the FM Global Plan Review Letter and Roofing Engineering Letters, and are therefore structurally adequate to withstand the design wind pressures determined using the 6th Edition Florida Building Code (FBC 2017) and ASCE 7-10. Limitations The scope of this investigation does not include analysis of the load carrying capacity of these structures, and the fastening patterns installed were reviewed using information regarding the materials and fasteners stated above, provided by Sutter Roofing at the time of this investigation. Sutter Roofing has stated that the coverboard attachment patterns installed do not vary from the coverboard attachment patterns that were shown in the photographs, and that the coverboard and single -ply membrane were installed were in accordance with the Product Approval and manufacturer's requirements. See Roofing Engineering Letters "Tropicana Fort Pierce — Fruit Processing Building" by Atlas dated August 27, 2018 and "Tropicana Fort Pierce — Electric Vault Building" by Atlas dated August 27, 2018 for design criteria, wind uplift pressures and additional information. Please do not hesitate to contact our office if you have any questions. Sincerely, Atlas Structural Engineering; LLC Robin W. Stephan, P.E. #66525 - - President- - Tropicana Fort Pierce I Page 2 of 6 Fruit Processing and Electric Vault As -Built Review ATLAS STRUCTURAL ENGINEERING, LLC PO Box #101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 Tropicana Fort Pierce I Page 3 of 6 Fruit Processing and Electric Vault As -Built Review ATLAS STRUCTURAL ENGINEERING, LLC PO Box #101578 1 Cape Coral. Florida 33910.1578 phone 239.274.6820 1 CA #28380 Tropicana Fort Pierce l Page 4 of 6 Fruit Processing and Electric Vault As -Built Review l ATLAS STRUCTURAL ENGINEERING, LLC PO Box #101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 r1 �f '.ram _ ,r. -�f.p f . '' A • � ; ` ��_✓�`T^.'�©��.��.q= _ A"..`.;." 4!f_ %. _. _- �Y�'t �� �� mil- f�r ! j(//J '�NNNaVVV Tropicana Fort Pierce I Page 5 of 6 Fruit Processing and Electric Vault As -Built Review a ATLAS STRUCTURAL ENGINEERING, LLC PO Box #101578 1 Cape Coral, Florida 33910-1578 phone 239.274.6820 1 CA #28380 ki -- �.' - Tropicana Fort Pierce I Page 6.of 6 Fruit Processing and Electric Vault As -Built Review t ' -?{j l - b25j PO Box #1015781 Cape Coral, Florida 33910.1578 phone 239.274.6820 ( CA #?28380 August 27, 2018 Mr. Ed Marrero Sutter Roofing Company of Florida 2661 Old Winter Garden Road Orlando, FL 32805 Re: Tropicana Fort Pierce Electrical Vault Building Atlas Job No. 18008.04 Dear Ed: Atlas Structural Engineering, LLC (Atlas) is pleased to provide this report of the fastening patterns required for attachment of single -ply roofing membrane and coverboard to existing steel roof deck on tie TTfro is naa IElectnc`al-V ocated at 6500 Glades Cut Off Road in Fort Pierce, Florida. T�e�lectdcal-Vault-is located near th eastern edge of the property and is attached to the Citrus Assembly Building, south of the Feed Mill. Factory Mutual Criteria and Design Wind Pressures As requested, Factory Mutual (FM) recommendations for installing mechanically fastened single -ply roof covers, and design wind pressures determined in accordance with FM Data Sheet 1-28, were used to determine the fastener patterns provided in this report. The following criteria were used: • Basic Wind Speed: V = 135 mph (Per FM Global Plan Review Letter No. 262419 Resubmittal) • Exposure: C • Internal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) According to FM 1-28 Table 4, the Roof Field Area (Zone 1) Uplift Design Pressure is equal to 53 psf. Using the criteria and Feld pressure provided above, the recommended FM Approval rating for the system to be used in the Field Roof Area (Zone 1) is FM 1-105. The corresponding design pressures are as follows: • Roof Field Area = -52.5 psf • Roof Perimeter Area = -82.5 psf • Roof Corner Area = -127.5 psf The pressures stated above meet or exceed the nominal Components and Cladding uplift pressures determined in accordance with ASCE 7-10, Chapter 30, using the following criteria: • Ultimate Wind Speed: Wit =169 mph • Nominal Wind Speed: Vasa = 131 mph • Exposure: C • Risk Category: Category II, III or IV • Internal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) Pressures are allowable and include ASCE 7-10 Allowable Stress Design (ASD) load factor of 0.6. Pressures were determined for a building with a flat roof, a maximum roof height of 20'-0" and a minimum overall width of 220'-0". See FM Global Plan Review Letter No. 262419 Resubmittal dated December 21, 2017 for edge distances and additional information. Tropicana Fort Pierce I Page 1 of 3 Electrical Vault Building FILEM. COPY 1111111r, ATLAS STRUCTURAL ENGINEERING, LLC PO Box #101578 j Cape Coral, Florida 33410-1578 Plime 239-274.68201 CA #228380 Single -Ply Fastening to Steel Deck FiberTite Magnum Fasteners with FiberTite Magnum or Magnum -Plus Stress Plates shall be used to attach 45 mil FiberTite Single -Ply roofing membrane through new 1/2" Hunter H-Shield HD coverboard and existing insulation to existing steel roof deck. Fasteners shall be corrosion resistant and each fastener must penetrate through the top flange of the steel deck a minimum of 3/4". The attachment of the single -ply roofing membrane shall be as follows: Zone 1 Provide whole sheets (6-2" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps which are spaced at 69" o.c. maximum. Zone 2 (Parallel) Sheets Parallel to Eave: Provide two half sheets (3'-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Alternately, one row of fasteners spaced at 6" o.c. in the center of whole sheets may be used. Fastener rows shall be approximately 34.5" o.c. maximum. Zone 2,f(Perp.) Sheets Pemendicular to Eave: Within each whole sheet provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Fastener rows shall be approximately 34.5" o.c. Extend center row of fasteners a minimum of 3'-0" in from the parapet or edge of roof. Zone 3 Provide two half sheets (3'-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Within each half sheet, provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Alternately, three equally spaced rows of fasteners spaced at 6" o.c. in whole sheets may be used. Fastener rows shall be approximately 17.25" o.c. maximum. Extend center rows of fasteners a minimum of 3'-0" in from the parapet or edge of roof. All Zones Each lap shall be sealed with a minimum 1.5" wide outside heat weld. Center row of fasteners shall be stripped -in with a 6" wide cover strip. Each edge of the cover strip shall be sealed with a minimum 1.5" wide heat weld. Fastener rows shall be installed perpendicular to steel deck flutes. Sheets shall not be "picture framed" unless the deck orientation changes. See Florida Product Approval and FiberTite literature and details for additional installation requirements. The new 1/2" coverboard shall be preliminarily fastened to the steel roof deck with FiberTite Insulation Fasteners and 3" Stress Plates. Provide six (6) fasteners and plates per 4'x8' board (minimum) or four (4) fasteners and plates per 4'x4' board (minimum) prior to placing the membrane. On -site withdrawal tests shall be performed at random locations to determine the average ultimate pullout value and to evaluate the ability of the roofing substrate to satisfactorily accept and retain the fasteners. The fastener patterns provided above were determined using an average ultimate pullout value of 345 Ibs per fastener, with a margin of safety for uplift resistance equal to 2.0. As requested, the fastening patterns provided above were extrapolated from the tested assembly fastener pattern provided in Miami Dade Notice of Acceptance (NOA) No.: 16-0518.08, Page 61 of 75, and do not exceed the force per fastener determined using the above stated Product Approval and allowable pullout value. ,. jai •' c rt Pierce I' a e 2 0Q :, Efecrd u4R,,r#ding�, ��,c 4V ATLAS STRUCTURAL ENGINEERING, LLC FO Box #101578 j Cape Coral, Florida 33910-1578 .phone 239.274.662.01 CA #28380 Limitations The scope of this investigation does not include analysis of the load carrying capacity of these structures, and the fastener patterns provided in this report are based on the materials and fasteners stated above, provided by Sutter Roofing at the time of this investigation. Design wind pressures were determined using information regarding the location and overall dimensions of the structures provided by Sutter Roofing. Follow all state, county and local codes and ordinances, and all manufacturer and roofing standard installation requirements. Please do not hesitate to contact our office if you have any questions. Sincerely, Atlas Structural Engineering, LLC Robin W. Stephan, P.E. #66525 President Tropicana Fort Pierce I Page 3 of 3 Electrtcal Vault Building °e°�:�°"stigti' No 66525 cc �0 STATE OF 'O "w0Buie t't 30•,� se�`S9s,O�A1 �a�0t'*,,o D!g'b]V s!gn RJyln I Stephan; UN: urt-VoWn Stephen?l E=roblriQ.9'� Jiplheaes net, oU Rt PS S4 _ a { Engm 1— D A.Ws Sb d4aY Engineednp lky", L Capa Ga:Y' 1x1IIx„C=US Data: ]Gi9�O1:Y2`1hS9:29`OS'90' THIS ITEM HAS BEEN DIGITALLY SIGNED AND SEALED BY ROBIN W. STEPHAN, PA ON 011142019 USING A DIGITAL SIGNATURE. PRINTED COPIES OF THIS DOCUMENT ARE NOT CONSIDERED SIGNED AND SEALED, AND THE BRA AUTHENTICATION CODE MUST BE VERIFIED ON ANY ELECTRONIC COPIES. 1001-c?zss - -- IvNSloec -Corr Zeror/. PO Box #101578 ( Cape Coral, Roil& 33910-1578 prune239.274.68201 CA Q8380 January 14, 2019 Mr. Ed Marrero Sutter Roofing Company of Florida 2661 Old Winter Garden Road Orlando, FL 32805 Re: Tropicana Fort Pierce Fruit Processing and Electric Vault As -Built Review Atlas Job No. 18008.04 To Whom It May Concern: As per your request, Atlas Structural Engineering, LLC (Atlas) has reviewed the in -progress and as -built photographs for attachment of coverboard and single -ply roofing membrane to existing steel roof deck on the Tropicana tTuit-Processing-Building and'Elecfi Ault-BBildiifq, located at 6500 Glades Cut Off Road in Fort Pierce, Florida: The purpose of our review is to verify of the as -built fastening patterns are structurally adequate to resist the wind uplift pressures required for this building. Coverboard Attachment Findings The coverboard was preliminarily mechanically fastened through existing insulation to existing steel roof decking using six (6) fasteners board. See page 3 for in -progress photographs of the coverboard installation. Sutter Roofing has stated that the coverboard is 1/2" Hunter H-Shield HD coverboard and the fasteners are Fibertite Insulation Fasteners with 3" Stress Plates and 3/4" minimum penetration into the steel roof deck. After reviewing the in -progress photographs and the attached affidavits from the contractor whom performed the work ("As -Built Condition for Tropicana Fruit Processing Building" by Sutter Roofing dated 01/14/2019 and "As -Built Condition for Tropicana Electric Vault Building" by Sutter Roofing dated 01/14/2019), it is our opinion attachment of the coverboard is installed in accordance with the FM Global Plan Review Letter and Roofing Engineering Letters. Single -Ply Attachment Findings The single -ply membrane is mechanically fastened through the coverboard and insulation to existing steel roof deck. See pages 3-6 for in -progress and as -built photographs of the single -ply installation. Sutter Roofing has stated that the single -ply membrane is Fibertite 45 mil membrane and the fasteners are Fibertite Magnum Fasteners with Magnum -Plus Stress Plates and 3/4" minimum penetration into the steel roof deck. According to Sutter Roofing, and as shown in the in -progress and as -built photographs, the single -ply membrane is mechanically fastened as follows: ® Zone 1 fasteners were spaced at 6" o.c. in rows not greater than 69" o.c. m Zone 2 fasteners were spaced at 6" o.c. in rows not greater than 34.5" o.c. o Zone 3 fasteners were spaced at 6" o.c. in rows not greater than 17.25" o.c. After reviewing the in -progress and as -built photographs, and the attached affidavits from the contractor whom performed the work ("As -Built Condition for Tropicana Fruit Processing Building" by Sutter Roofing dated Tropicana Fort Pierce I Page 1 of 6 Fruit Processing and Electric Vault As -Built Review ATLAS STRUCTURAL ENGINEERING, LLC PO Box #€01578 i Cape Coral,Plorida 33910-1578 ,phom: 239,274.6820 CA #28380 01114/2019 and "As -Built Condition for Tropicana Electric Vault Building" by Sutter Roofing dated 01/14/2019), it is our opinion attachment of the single -ply membrane is installed in general conformance with the FM Global Plan Review Letter and Roofing Engineering Letters, and is therefore adequate to resist the wind uplift pressures determined in accordance with the 6th Edition Florida Building Code and ASCE 7-10. Summary Minimum fastening patterns required for the coverboard and single -ply roof covering attachment were provided in the FM Global Plan Review Letter No. 262419 Resubmittal dated December 21, 2017 and the Roofing Engineering Letters "Tropicana Fort Pierce — Fruit Processing Building" by Atlas dated August 27, 2018, and "Tropicana Fort Pierce — Electric Vault Building" by Atlas dated August 27, 2018. After reviewing the contractor's in -progress and as -built construction photographs and the attached affidavits from the licensed contractor that performed the work ("As -Built Condition for Tropicana Fruit Processing Building" by Sutter Roofing dated 01/14/2019 and "As -Built Condition for Tropicana Electric Vault Building" by Sutter Roofing dated 01/14/2019), it is our opinion that the coverboard and single -ply have been installed in general conformance with the FM Global Plan Review Letter and Roofing Engineering Letters, and are therefore structurally adequate to withstand the design wind pressures determined using the 61h Edition Florida Building Code (FBC 2017) and ASCE 7-10. Limitations The scope of this investigation does not include analysis of the load carrying capacity of these structures, and the fastening patterns installed were reviewed using information regarding the materials and fasteners stated above, provided by Sutter Roofing at the time of this investigation. Sutter Roofing has stated that the coverboard attachment patterns installed do not vary from the coverboard attachment patterns that were shown in the photographs, and that the coverboard and single -ply membrane were installed were in accordance with the Product Approval and manufacturers requirements. See Roofing Engineering Letters "Tropicana Fort Pierce — Fruit Processing Building" by Atlas dated August 27, 2018 and "Tropicana Fort Pierce — Electric Vault Building" by Atlas dated August 27, 2018 for design criteria, wind uplift pressures and additional information. Please do not hesitate to contact our office if you have any questions. Sincerely, Atlas Structural Engineering, LLC Robin W. Stephan, P.E. #66525 President s01,,r �I'V a Srr�A,'ms ^` No 66525 G u =-0 ccs 9 . STATE OF :4(J e" a"rl�SSt1118 ®JyAq &0yy s®®® t. it lr r., ^1 � .J,h1 ., ,. T n9''Fo�t PiiiWj Pages orb ' it m s4g a`nFelecthd3d 11 L-Built Review D10AP9,aMN ;13u s han DN: CAxjobin Stephan E=ro4n'k'alla. n� en OIY-AAasS nrilYr a6 nM. LLC,n"3,,,„„„$'AtlaerFUu ra EnOin (y19.��. "��%Coral. S=Flo U , C=US DNa: ., � a�r� • ao• THIS ITEM HAS BEEN DIGITALLY SIGNED AND SEALED BY ROBIN W. STEPHAN, P.E. ON 011142018 USING A DIGITAL SIGNATURE. PRINTED COPIES OF THIS DOCUMENT ARE NOT CONSIDERED SIGNED AND SEALED, AND THE SHA AUTHENTICATION CODE MUST BE VERIFIED ON ANY ELECTRONIC COPIES. 1141,0I -o2s5 `G',5k.f^i 10.der-� PO Box # 10 € 578 1 Cape Coral, Florida 33910-1578 phone 239.274.68201 CA;f28380 August 27, 2018 Mr. Ed Marrero Sutter Roofing Company of Florida 2661 Old Winter Garden Road Orlando, FL 32805 Re: Tropicana Fort Pierce Fruit Processing Building Atlas Job No. 18008.04 Dear Ed: Atlas Structural Engineering, LLC (Atlas) is pleased to provide this report of the fastening patterns required for attachment of single ply roofing membrane and coverboard to existing steel roof deck on the Tropicana-FruitF Proces �rsiroces g u�u� ilding located at 6500 Glades Cut Off Road in Fort Pierce, Florida. The Fruit Processing Building is located near the eastern edge of the property, south of the Feed Mill. Factory Mutual Criteria and Design Wind Pressures As requested, Factory Mutual (FM) recommendations for installing mechanically fastened single -ply roof covers, and design wind pressures determined in accordance with FM Data Sheet 1-28, were used to determine the fastener patterns provided in this report. The following criteria were used: • Basic Wind Speed: V = 135 mph (Per FM Global Plan Review Letter No. 262419 Resubmittal) • Exposure: C • Intemal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) According to FM 1-28 Table 4, the Roof Field Area (Zone 1) Uplift Design Pressure is equal to 53 psf. Using the criteria and field pressure provided above, the recommended FM Approval rating for the system to be used in the Field Roof Area (Zone 1) is FM 1-120. The corresponding design pressures are as follows: • Roof Field Area = -60.0 psf • Roof Perimeter Area = -90.0 psf • Roof Corner Area = -135.0 psf The pressures stated above meet or exceed the nominal Components and Cladding uplift pressures determined in accordance with ASCE 7-10, Chapter 30, using the following criteria: • Ultimate Wind Speed: Vw = 169 mph • Nominal Wind Speed: Vasd =131 mph Exposure: C • Risk Category: Category II, III or IV • Internal Pressure Coefficient: +/- 0.18 (Enclosed Building / Protected Openings) Pressures are allowable and include ASCE 7-10 Allowable Stress Design (ASD) load factor of 0.6. Pressures were determined for a building with a flat roof, a maximum roof height of 30'-0" and a minimum overall width of 220'-0". See FM Global Plan Review Letter No. 262419 Resubmittal dated December 21, 2017 for edge distances and additional information. Tropicana Fort Pierce I Page 1 of Fruit Processing Building FILL COOS r ATLAS STRUCTURAL ENGINEERING, LLC PO Box 91015781 Cape Coral, Florida 339 €0-1578 ph, me 239.274A8201 CA 92.8380 Single -Ply Fastening to Steel Deck FiberTite Magnum Fasteners with FiberTite Magnum or Magnum -Plus Stress Plates shall be used to attach 45 mil FiberTite Single -Ply roofing membrane through new 1/2" Hunter H-Shield HD coverboard and existing insulation to existing steel roof deck. Fasteners shall be corrosion resistant and each fastener must penetrate through the top flange of the steel deck a minimum of 3/4". The attachment of the single -ply roofing membrane shall be as follows: Zone 1 Provide whole sheets (6-2" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps which are spaced at 69" o.c. maximum. Zone 2 (Parallel) Sheets Parallel to Eave: Provide three half sheets (3'-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Alternately, one row of fasteners spaced at 6" o.c. in the center of whole sheets may be used. Fastener rows shall be approximately 34.5" o.c. maximum. Zone 2 (Perp.) Sheets Perpendicular to Eave: Within each whole sheet provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Fastener rows shall be approximately 34.5" o.c. Extend center row of fasteners a minimum of 8'-0" in from the parapet or edge of roof. Zone 3 Provide three half sheets (T-1" wide each) with 5" wide side laps. Fasteners shall be spaced at 6" o.c. within the side laps. Within each half sheet, provide one row of fasteners spaced at 6" o.c. in the center of the sheet. Alternately, three equally spaced rows of fasteners spaced at 6" o.c. in whole sheets may be used. Fastener rows shall be approximately 17.25" o.c. maximum. Extend center rows of fasteners a minimum of 8'-0" in from the parapet or edge of roof. All Zones Each lap shall be sealed with a minimum 1.5" wide outside heat weld. Center row of fasteners shall be stripped -in with a 6" wide cover strip. Each edge of the cover strip shall be sealed with a minimum 1.5" wide heat weld. Fastener rows shall be installed perpendicular to steel deck flutes. Sheets shall not be "picture framed" unless the deck orientation changes. See Product Approval, FM Global Plan Review Letter and FiberTite literature and details for additional installation requirements. The new 1/2" coverboard shall be preliminarily fastened to the steel roof deck with FiberTite Insulation Fasteners and 3" Stress Plates. Provide six (6) fasteners and plates per 4'x8' board (minimum) or four (4) fasteners and plates per 4'x4' board (minimum) prior to placing the membrane. On -site withdrawal tests were performed at random locations to determine the average ultimate pullout value and to evaluate the ability of the roofing substrate to satisfactorily accept and retain the fasteners. The fastener patterns provided above were reviewed for an average ultimate pullout value of 667 Ibs per fastener, with a margin of safety for uplift resistance equal to 2.0. As requested, the fastening patterns provided above were extrapolated from the tested assembly fastener pattern provided in Miami Dade Notice of Acceptance (NOA) No.: 16-0518.08, Page 61 of 75, and do not exceed the force per fastener determined using the above stated Product Approval and allowable pullout value. ti NF P Fj".1 Page12 of 3g Euilding°� �= ATLAS STRUCTURAL ENGINEERING, LLC F0 Box 4410IS781 Cape Coral, Florida 339€0-1578 ph9ee 239.27$.682.0 € CA t]`28380 Limitations The scope of this investigation does not include analysis of the load carrying capacity of these structures, and the fastener patterns provided in this report are based on the materials and fasteners stated above, provided by Sutter Roofing at the time of this investigation. Design wind pressures were determined using information regarding the location and overall dimensions of the structures provided by Sutter Roofing. Follow all state, county and local codes and ordinances, and all manufacturer and roofing standard installation requirements. Please do not hesitate to contact our office if you have any questions. Sincerely, Atlas Structural Engineering, LLC Robin W. Stephan, P.E. #66525 President Tropicana Fort Pierce I Page 3 of Fruit Processing Building E a yy2•,• s No 66525 9 • STATE OF •441 Off. <u 4 .,9n-N?�99eC' y ON.Ory'+RI,"z. p� n� E=R$n�N 1m,1 •n OU-'fJ:p s�Yd:un� SWC IEnL'u ing LL... L CSFGreI,SFlM 4�5 THIS ITEM HAS BEEN DIGITALLY SIGNED AND SEALED BY ROBIN W. STEPHAN. P.E. ON 01/142019 USING A DIGITAL SIGNATURE. PRINTED COPIES OF THIS DOCUMENT ARE NOT CONSIDERED SIGNED AND SEALED, AND THE SHA AUTHENTICATION CODE MUST BE VERIFIED ON ANY ELECTRONIC COPIES.