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HomeMy WebLinkAboutSite Certifications - 07/09/2021Page 1 OVERALL SITE and DRAINAGE CERTIFICATION Commercial, Multi-Family and Subdivision Certification Form and Checklist Project Name: Date: Building Permit Numbers: (Commercial or multi-family) Per the requirement in Fort Collins Stormwater Criteria Manual (FCSCM) Chapter 3, Section 3.0 to certify as- built construction to the approved drainage and grading plans, please fill in all applicable items in this Certification Form for Commercial, Multi-Family and Overall Single Family sites. NOTE: several items must be verified during construction. A copy of the approved grading plan must be submitted with the as-built grading plan. (As-built elevations must be written in red next to the approved elevations.) •Use “Yes” for items completed as described. •Use “N/A” for items that are not applicable to the site being certified. •If any blanks are “No,” attach an explanation referencing the item number below. Attach an explanation or description of the as-built condition for any items listed or for anything not listed but shown on the approved construction plans. Provide an as-built redline or Mylar drawing with the following: I.Water Quality and Quantity Detention Basin - FCSCM Ch. 6 and 7 For multiple detention basins on a site, provide the following for each basin separately: A. Volume: As-built topographic verification is attached at 1-foot (or less) contour intervals and volume verification calculations for the water quality capture volume and the 100-year detention storage volume. 1. Detention basin topography was prepared by a professional land surveyor registered in the state of Colorado. 2.Both proposed and as-built contours are shown on the same plan sheet (dashed lines for proposed and solid lines for as-built). 3.All critical spot elevations as shown on the approved construction plans have been verified and the as-built elevations are shown on the plan sheet. 4.Stage-storage-discharge tables are provided on a separate document. 5.Verification that designed drain time is in compliance with Colorado Revised Statute § 37-92- 602(8) is attached and has been uploaded to the Statewide Compliance Portal (tinyurl.com/COCompliancePortal) for approval. Uploaded documents must include: a.The cover sheet from the approved drainage report b.The stamped certification page from the approved drainage report c.As-built topographic survey d.Stamped certification page from the Overall Site & Drainage Certification e.PDF output from the Stormwater Detention and Infiltration Design Data Speadsheet 11/19 Page 2 B.Water Quality and Quantity Detention Basin Grading: Attached is as-built verification that there is a minimum 2% positive fall into the concrete trickle pans or flow-line(s) from all areas in the bottom of the detention pond. If there is a “soft pan” in the flow-line, all areas still must meet the minimum 2% grade requirement. 1.Low Flow: Choose one of the following detention basin low flow options as applicable: a. Turf swale for low flow path in detention basin. There is a minimum 2% grade in the flow-line(s) of the detention basin. The flattest as-built grade is . b.Concrete pan for low flow in detention basin. There is a concrete pan installed that meets the grades as shown on the approved construction plans. (Show as-built spot elevations.) c.Soft pan for low flow in detention basin. •Verify and document the soft pan material gradation, trench width and depth - to be verified during construction by engineer. Picture documentation is preferred or engineer’s statement of visual inspection and compliance. (Choose one below.) o There is a soft pan with an underdrain installed that meets the design on the approved construction plans. (Show the underdrain grades, bedding material, geotextile, spot elevations, bends, cleanouts, etc.) o There is soft pan installed without an underdrain but there is a type A or B soil. The soil type must be documented by supplying verification from a registered professional geotechnical engineer. NOTE: Spot elevations are to be within 0.2 ft. +/-. 2. Side Slopes: The as-built side slopes of the detention basin have been calculated and are shown. Indicate the side slope with an arrow and a numerical value (e.g., 6.25:1). The maximum slope allowed is 4:1. Small areas of 3:1 may be acceptable, but slopes steeper than 3:1 must be stabilized or re- graded. Provide documentation if a variance was granted for steeper slopes during the design process. 3.Spillway: The following items must be field verified: a.The location of the spillway is indicated on the as-built plan. b.The width of the spillway is indicated on the as-built plan. c.The elevation(s) of the spillway is shown on the as-built plan. d.A concrete ribbon defines the location and grade of the spillway. e.There is downstream scour protection in the spillway as per the construction plans. Indicate type: (riprap size “D50” gradation and bedding type, geotextile, buried riprap with inches of bury, etc.). f.There are no obstructions in the spillway, such as trees, bushes, sidewalks, landscape features, rocks, etc. 11/19 Page 3 4.Outlet Structure: a.The orifice plate for the approved release rate is installed with the correct size and location of the orifice. b.The orifice plate for the water quality outlet is installed with the correct hole size, number of rows and columns of holes. c.The bottom hole on both the water quality and quantity outlets are at the bottom of the plate so no water ponds in front of the plate. d.The well screen is the correct material and is installed as shown on the construction plans. e.100-year overflow grate elevation is . (Elev. A on detail D-46) f.The top elevation of the water quality capture volume is . (Elev. B on detail D-46) g.Overflow grate is made of the correct material, has the correct bar spacing, is hinged at the top and bolted at the bottom. h.The bottom of the outlet box has no obstructions or misalignments that will cause it to retain runoff water and is sloped at 2% towards outlet. II.Channels/Swales - FCSCM Ch. 8, Sec. 2.0 and Ch. 9, Sec. 5.0 A. Capacity: The as-built capacity of all the major channels and swales has been verified. They meet or exceed capacity requirements shown in the approved drainage study for this project. 1.All swales are located within the drainage easements as shown on the construction plans. 2.Longitudinal slopes and side-slopes (cross-sections) have been verified. Design criteria requires longitudinal slopes of 2% min. (on vegetated swales) and side-slopes no steeper than 4:1. If these criteria are not met, the certification engineer will write a justification and propose mitigation for each instance or have the issues corrected. If variances to these criteria have previously been approved and are shown on the construction plans, no justification is needed. 3.As-built spot elevations on channels/swales are shown that correspond to spot elevations shown on the approved construction plans. 4.All permanent erosion control measures are installed as shown on the approved construction plans (e.g., drop structures, riprap, TRMs, etc.). (Include pictures and verification of the materials used as part of this verification.) 5.All pans, curbs, storm pipes or other appurtenances appropriately tie into each other in the system. (Pictures at tie-in points suggested.) 6.The minimum freeboard is provided for all channels and swales as shown on the approved construction plans or as identified in the approved drainage study. (Show the freeboard provided on the cross-sections as on the construction plan set or attached as separate documentation.) 7.The low flow portion of all channels or swales is clear of obstructions. (No landscaping, trees, shrubs, sod, etc. infringe on the low flow portion of channels or swales.) 11/19 Page 4 III.Storm Pipes (aka storm drains) - FCSCM Ch. 9, Sec. 4.0 A. Storm Drain Pipe Capacity: The as-built capacity of all pipes installed on this project has been verified and meets or exceeds the capacity requirements shown in the approved drainage study for this project. 1.All storm drain pipe sizes and materials have been verified and are in conformance with the approved construction plans. (Indicate on the plan and profile sheets that they have been verified.) Material and size substitutions must be approved prior to installation. If a pipe size or material was changed during construction, the certification engineer must attach the approval documents or supply them with this certification. Approval documents must include a calculation documenting the capacity equivalency (equal or greater) of the substituted size. 2.The longitudinal slope of the pipe is as shown on the approved construction plans. The acceptable minimum slope is 0.4%. All slopes flatter than the designed slope on the construction plans must be justified with capacity calculations on an attached sheet. 3.The as-built invert elevations have been verified and are shown on the plan and profile sheets of the approved construction plans. B.Storm Drain Pipe Installation Requirements: All pipes are installed in accordance with the approved construction plans and construction specifications. 1.The minimum cover requirements for all pipes have been met as shown on the approved construction plans. These will be called out in critical locations. 2.All encasements and clearances as specified on the approved construction plans have been met. 3.Any specific joint types or construction methods specified on the approved construction plans have been met. (List on a separate sheet and attach to this certification.) IV.Concrete Pans - FCSCM Ch. 8, Sec. 2.0 A. Construction/Installation: All concrete pans have been constructed in accordance with the approved construction plans. 1.The concrete pans are the correct size/width as shown on the approved construction plans. 2.The longitudinal slopes of the pans are as shown on the approved construction plans. The certification engineer must justify or mitigate longitudinal slopes less than the minimum of 0.4% unless a flatter slope was approved and is shown on the approved construction plans. Provide mitigation or justification by separate document. 3.The cross-section of the pan is as shown on the construction plans. (Specifically, the pan cross- section is “V” shaped and meets the side slope shown on the detail.) 4.The concrete pans are a minimum of 6 inches thick without reinforcement and a minimum of 4 inches thick with a minimum of 6X6-W14xW14 reinforcement per detail D20B and D20C. (Provide documentation of the reinforcement used if different than shown on the details or on the approved construction plans.) 5.The spot elevations shown on the concrete pan(s) have been verified and are shown on the as- built drawings. 11/19 Page 5 V. Storm Drain Inlets - FCSCM Ch. 9, Sec. 3.0 A. Construction/Installation: All storm drain inlets have been constructed in accordance with the approved construction plans and construction specifications. 1.The size and type of inlets are consistent with the inlets shown on the approved construction plan. Indicate by writing “Verified” on each inlet on the plan sheet or list on a separate document the inlet number(s), type and size (length). If the inlet installed is other than the one on the approved construction plan detail sheet, provide the name and source of the detail with justification for equal or better capacity. 2.The size of the inlet opening is consistent with the approved detail. (Check height and width.) 3.The elevation of the grate (if applicable) is at the elevation shown on the street profile or as indicated by a spot elevation on the construction plans. 4.The as-built invert elevations of all pipes entering and leaving the inlet are shown on the plan and profile sheets within construction tolerance of 0.2 feet. If substantially different, provide justification and capacity calculations to show the capacity is not affected or propose mitigation. 5.The as-built size of the inlet box is as shown on the construction plans or an explanation or justification is attached. 6.All Type C, R, 13 and 16 inlet covers are stenciled or stamped with the following designation (or an equivalent): NO DUMPING – DRAINS TO POUDRE RIVER. VI.Culverts - FCSCM Ch. 9, Sec. 4.0 A. Construction/Installation: All culverts have been constructed and/or installed in accordance with the approved construction plans and construction specifications. 1.All culvert sizes have been verified as indicated on the as-built construction plans as correct. 2.The culvert material type for all culverts installed is as on the approved construction plans and is indicated on the as-built plans. 3.The as-built invert “in and out” elevations have been verified and are indicated on the as-built construction plans. 4.The culvert headwalls or wing walls have been installed as shown on the approved construction plans. Headwalls or wing walls may be needed in the as-built conditions onsite if the slopes adjacent to the culvert are greater than 4:1. Please note areas needing stabilization in the certification narrative. An alternative to consider is a turf reinforcement mat (TRM). VII.Sub-Drains A. Construction/Installation: All sub-drains shown on the construction plans have been installed in accordance with those plans and the construction specifications. Sub-drains installed with the sanitary sewer are to be verified on the sanitary sewer plan and profile sheets of the construction plans. (NOTE: Indicate any sub-drains installed after the plans were approved on the as-built plans.) 1.The size of the sub-drains are as approved on the construction plans and are indicated on the as- built plans. 2.The type of sub-drain, in particular the perforated and non-perforated sections of the drain, are as indicated on the approved construction plans. 11/19 Page 6 3.The cover requirements per the construction plans are provided. 4.The cleanouts have been installed at the locations shown on the construction plans and are accessible for cleaning. (Cleanouts can be buried a maximum of 6 inches deep with their locations marked.) 5.The backfill materials for sub-drains are as shown on the approved construction plans. (This includes the type, depth and width.) 6.The geo-textile liner completely wraps the sub-drain and the permeable backfill material unless shown otherwise on the approved construction plans. (Sub-drain pipe wrapped in a sock filter material is accepted only if approved prior to installation.) VIII.Curb Cuts A. Construction: All curb cut openings are constructed in accordance with the approved construction plans and construction specifications. 1.The size (width) of the curb cut opening is as shown on the approved construction plans. 2.The curb cut openings tie into a downstream swale, pipe, or other appurtenances with a smooth transition and there no obstructions such as riprap or sod impeding the flow downstream of the curb cut. IX.Sidewalk Culverts & Chases A. Construction/Installation: All sidewalk culverts have been installed at the locations shown on the approved construction plans. 1.The size (width and length) of the culverts are as shown on the approved construction plans. 2.The cover plate is a minimum 5/8-inch galvanized plate bolted to a galvanized angle iron per the detail shown on the approved construction plans or per the City’s detail. 3.The sidewalk culvert invert “in and out” elevations have been verified and are indicated on the as-built plans. 4.The sidewalk culvert opening is as shown on the approved construction plans or per the City’s detail. 5.There is a smooth transition both on the inlet and outlet ends of the sidewalk culvert with no obstructions such as riprap or sod impeding the flow into or out of the sidewalk culvert. X. Site Grading - FCSCM Ch. 8 A. Construction: All common open spaces have been graded in accordance with the approved construction plans. 1.The grading on all common open spaces bordering private lots has been verified as correct and the as-built rear lot corner elevations have been shown on the as-built plans. 11/19 Page 7 2.The as-built contours for “overlot grading” are shown on the as-built construction plans for all common open spaces, tracts, outlots, etc. If not in compliance, please attach a narrative describing the situation for noncompliance and when it may be corrected. An escrow for overlot grading may be required. (NOTE: Residential Lot Grading Certification is a separate process from this Overall Site Certification. It is understood that residential lots will be brought to final grade once the foundation is backfilled so they may be lower than the plan shows at this Overall Site Certification stage.) 3.All turf reinforcement mats (TRMs) have been installed as shown on the approved construction plans and the slopes are stabilized. XI.Permanent Erosion Control BMPs - FCSCM Ch. 9, Sec. 7.0 A. Construction: All permanent erosion control BMPs have been installed per the approved construction plans. 1.All riprap has been installed in the locations and sizes indicated on the approved construction plans. 2.All fabric has been installed in the locations and sizes indicated on the approved construction plans. a.All fabric was installed per the details on the approved construction plans. XII.Post-Construction Site Cleanup - FCSCM Ch. 3, Sec. 2.0 A. Construction: All construction debris and obstructions of any kind have been removed from drainage paths. 1.All construction debris has been removed except in staging area(s). 2.All ruts have been smoothed out in all construction areas. 3.All areas needing reseeding have been identified and future stabilization goals have been coordinated with the Erosion Control Inspector and in accordance with FCSCM Vol.2 Chapter 12. Note the area needing stabilization in the narrative. XIII.Certification of LID and Water Quality Facilities - FCSCM Ch. 7 A.Attached are the During Construction Inspection Checklist for Low Impact Development (LID) and other items to be verified during construction, along with pictures and other required documentation. B.Attached is verification of the rain garden and/or sand filter flat surface area(s) and ponding volume(s). This verification includes survey of critical elevations. C.Attached is verification of the underground infiltration required volume(s), weir elevations, orifices, inspection ports and filtering fabric. This verification includes survey of critical elevations. D.All visible LID design features were verified as part of the engineer's site visit. 11/19 Stormwater Facility Name: Facility Location & Jurisdiction: User Input: Watershed Characteristics User Defined User Defined User Defined User Defined Selected BMP Type =EDB Stage [ft]Area [ft^2]Stage [ft]Discharge [cfs] Watershed Area =0.41 acres 0.00 1,765 0.00 0.01 Watershed Length =140 ft 0.50 1,765 0.50 0.01 Watershed Length to Centroid =100 ft 0.51 2,717 0.51 0.12 Watershed Slope =0.015 ft/ft 1.83 2,717 1.83 0.12 Watershed Imperviousness =90.0%percent 1.84 1,765 1.84 0.12 Percentage Hydrologic Soil Group A =0.0%percent 2.33 1,765 2.33 0.12 Percentage Hydrologic Soil Group B =0.0%percent Percentage Hydrologic Soil Groups C/D =100.0%percent Target WQCV Drain Time =12.0 hours User Input After completing and printing this worksheet to a pdf, go to: https://maperture.digitaldataservices.com/gvh/?viewer=cswdif Create a new stormwater facility, and attach the PDF of this worksheet to that record. Routed Hydrograph Results Design Storm Return Period =WQCV 2 Year 5 Year 10 Year 50 Year 100 Year One-Hour Rainfall Depth =N/A 0.87 1.15 1.45 2.45 3.00 in CUHP Runoff Volume =0.011 0.024 0.033 0.043 0.077 0.095 acre-ft Inflow Hydrograph Volume =N/A 0.024 0.033 0.043 0.077 0.095 acre-ft Time to Drain 97% of Inflow Volume =12.5 24.8 24.6 24.8 26.8 28.0 hours Time to Drain 99% of Inflow Volume =12.8 25.4 25.4 25.8 28.7 30.3 hours Maximum Ponding Depth =0.27 0.51 0.53 0.64 1.14 1.44 ft Maximum Ponded Area =0.04 0.05 0.06 0.06 0.06 0.06 acres Maximum Volume Stored =0.011 0.020 0.022 0.029 0.060 0.079 acre-ft Once CUHP has been run and the Stage-Area-Discharge information has been provided, click 'Process Data' to interpolate the Stage-Area-Volume-Discharge data and generate summary results in the table below. Once this is complete, click 'Print to PDF'. Stormwater Detention and Infiltration Design Data Sheet Garcia House: A Circle Program by SummitStone Patton Street, Fort Collins, CO SDI-Design Data v2.00, Released January 2020 Location for 1-hr Rainfall Depths (use dropdown): After providing required inputs above including 1-hour rainfall depths, click 'Run CUHP' to generate runoff hydrographs using the embedded Colorado Urban Hydrograph Procedure. SDI_Design_Data_v2.00.xlsm, Design Data 12/14/2020, 4:41 PM Booleans for Message Booleans for CUHP Watershed L:W 1 CUHP Inputs Complete Watershed Lc:L 1 CUHP Results Calculated Watershed Slope FALSE Time Interval RunOnce 1 CountA 1 Draintime Coeff 0.8 User Precip 1 Equal SA Inputs 1 Equal SD Inputs 1 Stormwater Detention and Infiltration Design Data Sheet 0 0.5 1 1.5 2 2.5 0.1 1 10 FL O W [ c f s ] TIME [hr] 100YR IN 100YR OUT 50YR IN 50YR OUT 10YR IN 10YR OUT 5YR IN 5YR OUT 2YR IN 2YR OUT WQCV IN WQCV OUT 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 0.1 1 10 100 PO N D I N G D E P T H [ f t ] DRAIN TIME [hr] 100YR 50YR 10YR 5YR 2YR WQCV SDI_Design_Data_v2.00.xlsm, Design Data 12/14/2020, 4:41 PM 1 Ed Jansury From:mailer@digitaldataservices.com Sent:Monday, December 14, 2020 4:45 PM To:Ed Jansury Subject:Stormwater Detention and Infiltration Facility - Garcia House: A Circle Program by SummitStone Thank you for submitting to the Colorado Stormwater Detention and Infiltration database. Your facility has been recorded and the local jurisdiction has been notified. Facility ID: SWDF-20201214164512 Name: Garcia House: A Circle Program by SummitStone Division: South Platte Jurisdiction: FortCollins Design Storm: 100-Year Water Surface Acres: 0.41 Edit Key: 0ee2b4da6559d1b9bba7fc47648148c6 If you wish to edit the facility in the future, you will need the Edit Key listed above. If you lose the key, you will not be able to edit the facility information in the future. COLORADO CIVIL GROUP, INC. • 2204 Hoffman Drive • Loveland, CO 80538 • 970-278-0029 Memo TO: Matt Simpson FROM: Edward J. Jansury Jr., PE DATE: July 7, 2021 SUBJECT: Garcia House Final Inspection PROJECT No.: 0060.0002.00 This memo has been prepared per your request to address the 3 items outlined in your email dated June 28, 2021. Item 1: Downspout direct tie-ins. The downspouts have been modified to be directly tied into the storm drain per City of Fort Collins request. See attached photos. Item 2: Gutter and Downspout Capacity Memo. See attached memo from G2 Consulting Engineers, Inc. regarding gutter and downspout sizing as requested by the City of Fort Collins. Item 3: Solid Covers for manholes in parking lot. Grated covers have been replaced with solid covers per request of City of Fort Collins. See attached photos. COLORADO CIVIL GROUP, INC. • 2204 Hoffman Drive • Loveland, CO 80538 • 970-278-0029 West Side West SIde North Side North Side COLORADO CIVIL GROUP, INC. • 2204 Hoffman Drive • Loveland, CO 80538 • 970-278-0029 North Side North Side North Side East Side COLORADO CIVIL GROUP, INC. • 2204 Hoffman Drive • Loveland, CO 80538 • 970-278-0029 East Side South Side COLORADO CIVIL GROUP, INC. • 2204 Hoffman Drive • Loveland, CO 80538 • 970-278-0029 South Side Typical Connection COLORADO CIVIL GROUP, INC. · 2204 Hoffman Drive · Loveland, CO 80538 · 970-278-0029 Solid Covers on Stormtech Inlet Structures G2 Consulting Engineers, Inc. 1039 Main Street Unit G Windsor, CO 80550 Page 1 of 1 June 29, 2021 Shaun Moscrip ALM2S Principal 712 Whalers Way Building B, Suite 100 Fort Collins, CO. 80525 Project: Garcia House Subject: Roof Storm Gutters Dear Shaun, Per the City of Fort Collins stormwater criteria manual, the site location requires all drainage to comply with a rainfall rate of 9.95 inches per hour, even building storm drainage and roof gutters. Please see attached Appendix A for roof areas and required associated gpm flow for each roof. G2 made recommendations based on the 2018 IPC table 1105.6 for horizontal gutter sizing and table 1106.3 for vertical gutter sizing based upon the flow requirements set forth from the City of Fort Collins. These recommendations took into account the existing gutters being removed and replaced with sizes shown on sketch. For upper roofs draining onto lower roofs (predominately the west upper roof) gutters and downspouts were not required to be upsized per conversation with Matt Simpson. These areas can simply overflow onto the lower roof below. If you have any questions, or need any additional information, please feel free to contact us. Regards, David Manring, PE, CEM, LEED AP Principal G2 Consulting Engineers, Inc. 06/29/2021 RE F . RI D G E RI D G E RI D G E RI D G E RI D G E RI D G E VAL L E Y VAL L E Y VAL L E Y 1 4 5 6 A C D F G B E 2 3 Z Y X AA BB CC DD 7 8 9 3' - 0" 32' - 0" R2 R4 3" / 12" 3" / 12" 3" / 12" 3" / 12" 2" / 12" 2" / 12" 3" / 12" 3" / 12"3" / 12" 3" / 12" R2 7.02 R4 7.02 R4 7.02 R4 R2 7.02 R4 7.02 7.02 7.02 7.02R4 SEE UPPER ROOF PLAN ON SHEET A1.4 1' - 11 3/8" 2' - 11 3/8" 8' - 0" 2' - 6" 28' - 4" 3' - 0" 3' - 0" 3' - 0" 3" / 12" 14' - 2"14' - 2" 9' - 0 1/2"9' - 0 1/2" 18' - 1"12' - 8"12' - 8" 43' - 5" 11' - 10"11' - 10" 52' - 0" 3' - 0" 3' - 0" 1' - 11 3/8" VALLE Y VALLEY 3' - 0" 3' - 0 5/8" 3' - 0" 3" / 12" R2 R2 7 A7.4 Sim 7 A7.4 Sim 7 A7.4 Sim 7 A7.4 Sim 6' - 3 1/2" R2 7.01 7.02 7.01 7.02 7.01 7.01 7.01 7.01 7.01 7.02 7.01 4 FDP4 R6 R6 R7 R7 R6 R6 R6 R6 R6 R6 R6 R6 R6 5 A7.6 7.01 7.01 7.01 7.01 7.01 7.01 - --- 0 1/ 2 " 1" 2 " 5 4 3 2 1 A B C D PROJECT DATE DRAWN 712 WHALERS WAY SUITE, B-100 FORT COLLINS, CO 80525 (970) 223-1820 www.alm2s.com PR I N T E D FI L E N A M E : © al m 2 s 2 0 1 9 12 / 1 3 / 2 0 1 9 1 : 1 9 : 3 6 P M 00 0 0 - P r o j e c t - S D . r v t LOWER ROOF PLAN 1927 JW, CF 12/16/19 A1.3 A C I R C L E P R O G R A M B Y S U M M I T S T O N E FO R T C O L L I N S , C O GA R C I A H O U S E : SCALE: N 3/16" = 1'-0" 03 - LOWER ROOF PLAN -SYSTEM NOTES- MARK DESCRIPTION R2 1-HOUR RATED ROOF/CEILING ASSEMBLY - ASPHALT SHINGLES OVER ROOFING FELT LAPPED 19" OVER FULL COVERAGE GRACE ICE & WATER SHIELD SECONDARY UNDERLAYMENT ON 3/4" PLYWOOD ROOF DECKING ON PRE-ENGINEERED ROOF TRUSSES WITH R-49 BATT OR BLOWN-IN INSULATION - RE: STRUCT. R4 ROOF FASCIA - 5/4" X 8" SMOOTH CEMENT FIBER FASCIA BOARD - PAINT. R6 COR-A-VENT ROOF-2-WALL VENT OR EQUAL AT ALL LOWER ROOF TO WALL CONNECTIONS TO BE SET IN A BED OF SEALANT. PROVIDE 1" CUT SLOT IN ROOF DECK BELOW THE VENT. PROVIDE METAL FLASHING SET IN A BED OF SEALANT WITH SHINGLE TABS ABOVE THE ROOF VENT. R7 PRE-MANUFACTURED RIDGE VENT WITH A 3" SLOT CUT IN THE ROOF SHEATHING (1 1/2" ON EACH SIDE OF THE RIDGE LINE). PROVIDE CENTER SHINGLE CAP ON THE RIDGE VENT AND NAILED IN PLACE. -KEYNOTES- Key Value Keynote Text 7.01 4" x 5" PRE-FINISHED METAL DOWNSPOUT 7.02 4" x 4" PRE-FINISHED METAL BOX-STYLE GUTTER NO ISSUE DATE 1651 SF 170 SF 633 SF 96 SF 1651 SF = 175 GPM. ADD 285 GPM FROM ROOF ABOVE FOR A TOTAL FLOW OF 460 GPM ASSUMING EQUAL FLOW BETWEEN ALL THREE GUTTERS AND DOWNSPOUTS, EACH WOULD FLOW 155 GPM 5x3 HORIZONTAL GUTTER WOULD BE REQUIRED AS WELL AS 4"Ø DOWNSPOUT. 633 SF = 70 GPM 5x3 GUTTER AND 2x3 DOWNSPOUT WILL WORK. ADD DOWNSPOUT HERE ADD DOWNSPOUT HERE APPENDIX A RIDGE RIDGE RIDGE 1 A5.1 1 A5.1 1 A5.5 1 A5.6 1 A5.6 2 A5.1 1 A5.2 1 A5.2 2 A5.3 2 A5.3 2 A5.5 1 A5.3 1 A5.3 1 A5.4 1 A5.4 4 5 6 A C D B E 2 3 Z Y X AA BB CC DD 7 8 9 3 A5.5 3 A5.5 2 A6.6 2 A5.4 2 A5.4 2 A5.2 EW1-1 R2 R1-1 2" / 12" 2" / 12" 2 A6.5 1 A6.6 1 A6.5 2 A7.3 1/4" / 12" R1-3 R1-1 32' - 0" 2 A5.6 3/16" / 12" ALONG BASE OF PARAPET WALL 1/4" / 12" 1/4" / 12" R2 R2 R1-1 R1-1 R2 R2 1/4" / 12" 2" / 12" 2" / 12" 2" / 12" 2" / 12" 2" / 12" 2" / 12" 2" / 12" 7.02 R4 1' - 6" 3' - 0"3' - 0" 1' - 6" 2' - 0"2' - 0" 2' - 0" 3' - 0" 3' - 0" 1' - 6" 1' - 6" 1' - 11 1/2" 2' - 0" 2' - 0" 2' - 0" 7.01 7.02 7.01 7.02 7.017.02R2 7.01 7.02 7.02 7.01 R4 7.06 2 A7.6 1/4" / 12" 1/4" / 12" 1/4" / 12" 1/4" / 12" 1/4" / 12" 1/4" / 12"1/4" / 12" 7.06 7.06 R6 R6 R6 R4 R4 3/8" / 12"7/8" / 12" 3/16" / 12" 7.07 7.07 7.07 R1-3 R1-3 HIDDEN LINE INDICATES OUTSIDE FACE OF WALL FRAMING BELOW R1-2 PROVIDE WALKING 0 1/ 2 " 1" 2 " 5 4 3 2 1 A B C D PROJECT DATE DRAWN 712 WHALERS WAY SUITE, B-100 FORT COLLINS, CO 80525 (970) 223-1820 www.alm2s.com PR I N T E D FI L E N A M E : © al m 2 s 2 0 1 9 12 / 1 3 / 2 0 1 9 1 : 1 9 : 4 0 P M 00 0 0 - P r o j e c t - S D . r v t UPPER ROOF PLAN 1927 JW, CF 12/16/19 A1.4 A C I R C L E P R O G R A M B Y S U M M I T S T O N E FO R T C O L L I N S , C O GA R C I A H O U S E : SCALE: N 3/16" = 1'-0" 03 - UPPER ROOF PLAN -SYSTEM NOTES- MARK DESCRIPTION EW1-1 EXTERIOR WALL - FIBER CEMENT HORIZONTAL LAP SIDING WITH SMOOTH TEXTURE AND 6" EXPOSURE OVER TYVEK CommercialWrap AIR BARRIER ON 7/16" O.S.B. SHEATHING ON EXTERIOR SIDE OF 2X6 WOOD STUD FRAMING AT 16" O.C. - ROOFING MEMBRANE OVER 5/8" O.S.B. SHEATHING AT INTERIOR SIDE OF WALL PARAPET - PROVIDE PRE-FINISHED METAL PARAPET CAP FLASHING AT ALL PARAPET CONDITIONS - PAINT FINISH. R1-1 1-HOUR RATED ROOF/CEILING ASSEMBLY - MEMBRANE - 60 MIL TAN FULLY ADHERED ROOFING MEMBRANE OVER 5/8" COVERBOARD ON 3/4" PLYWOOD ROOF DECKING ON PRE-ENGINEERED ROOF TRUSSES AT 24" O.C. WITH R-49 BATT OR BLOWN-IN INSULATION - RE: STRUCT. - CEILING TYPE C4 AT BOTTOM SIDE OF ROOF FRAMING PER SYSTEM GA RC 2604 AS NOTED ON G1.3. R1-2 ROOF ASSEMBLY - MEMBRANE - 60 MIL TAN FULLY ADHERED ROOFING MEMBRANE OVER 5/8" COVERBOARD ON 6" (R-30 MINIMUM) RIGID INSULATION OVER 3/4" PLYWOOD ROOF DECKING NAILED AND GLUED TO 2X10 ROOF RAFTER FRAMING - RE: STRUCT. R1-3 ROOF CRICKET - 60 MIL TAN FULLY ADHERED ROOFING MEMBRANE OVER 5/8" COVERBOARD ON TAPERED RIGID INSULATION INSTALLED DIRECTLY ON TOP OF ROOF DECK IN R1-1 ROOF ASSEMBLY. R2 1-HOUR RATED ROOF/CEILING ASSEMBLY - ASPHALT SHINGLES OVER ROOFING FELT LAPPED 19" OVER FULL COVERAGE GRACE ICE & WATER SHIELD SECONDARY UNDERLAYMENT ON 3/4" PLYWOOD ROOF DECKING ON PRE-ENGINEERED ROOF TRUSSES WITH R-49 BATT OR BLOWN-IN INSULATION - RE: STRUCT. R4 ROOF FASCIA - 5/4" X 8" SMOOTH CEMENT FIBER FASCIA BOARD - PAINT. R6 COR-A-VENT ROOF-2-WALL VENT OR EQUAL AT ALL LOWER ROOF TO WALL CONNECTIONS TO BE SET IN A BED OF SEALANT. PROVIDE 1" CUT SLOT IN ROOF DECK BELOW THE VENT. PROVIDE METAL FLASHING SET IN A BED OF SEALANT WITH SHINGLE TABS ABOVE THE ROOF VENT. NO ISSUE DATE INSULATED ACCESS PANEL 20X30 CLEAR OPENING MINIMUM 2748 SF 1978 SF 293 SF 251 SF 1978 = 205 GPM ASSUMING EQUAL FLOW BETWEEN THE TWO DOWNSPOUTS, HORIZONTAL GUTTERS AND VERTICAL LEADERS SHALL BE SIZED FOR 105 GPM A 5x3 HORIZONTAL GUTTERS SLOPED AT 1/4" PER FOOT CAN ACCOMMODATE 157 GPM. 4"Ø VERTICAL DOWNSPOUT OR EQUIVELANT AREA REQUIRED. 293 SF = 31 GPM 5x3 GUTTER AND 2x3 DOWNSPOUT IS REQUIRED. 251 SF = 30 GPM 5x3 GUTTERS AND 2x3 DOWNSPOUT REQUIRED. 2748 SF = 285 GPM ASSUMING EQUAL FLOW BETWEEN THE TWO DOWNSPOUTS, HORIZONTAL GUTTERS AND VERTICAL LEADERS SHALL BE SIZED FOR 145 GPM A 5x3 HORIZONTAL GUTTERS SLOPED AT 1/4" PER FOOT CAN ACCOMMODATE 157 GPM. 4"Ø VERTICAL DOWNSPOUT OR EQUIVELANT AREA REQUIRED. PER STORM WATER DIVISION THESE ROOF GUTTERS CAN REMAIN AS-IS. NEED ANOTHER DOWNSPOUT HERE. APPENDIX A