ITB 26-15 Addendum #1 - Inquiries and Responses.pdf (62 KB)

ITB# 26-15 Addendum #1 - Inquiries and Responses 11/17/25 Inquiry #1 Will this project be awarded Compositely or individually. Response #1 Awarded to one contractor Inquiry #2 Will the Metal roofing need a 20 year NDL or will the standard finish warranty with a 3year workmanship warranty suffice? Response #2 20 Year NDL Inquiry #3 Will there be an allowance for damaged decking as needed? Response #3 If any is found we will negotiate the amount Inquiry #4 Is there a specified manufacturer for the sky lights? Response #4 Replace in kind with same manufacturer if possible Inquiry #5 Will Versico EPDM be accepted for membrane roofs as it is a Carlise product, and carries the same warranties? Response #5 No

Inquiry #6 Are we to replace the front hold down cleat where the scope only calls for replacement of the cap flashing? Response #6 I assume this is for Angevine MS, no

Inquiry #7 Are we to replace all the parapet cap and front hold down cleat associated with the EPDM and Metal roof replacement at Centaurus High School? Response #7 Yes Inquiry #8 Is a 20 year NDL required at all buildings at Broomfield High School, this will require additional metal work at building F. Response #8 Yes Inquiry #9 Will builders risk be required or can this be waived ? Response #9 Builders Risk Insurance is not required. The following are required with your submission: The Bid Bond, Proof of Insurance - Certificate of Insurance, and Proof of Bond Capacity. Inquiry #10 Will professional liability be required or can this be waived ? Response #10 Professional Liability Insurance is not required. The following are required with your submission: The Bid Bond, Proof of Insurance - Certificate of Insurance, and Proof of Bond Capacity. Inquiry #11 Angevine MiddleVerifying 4- skylight replacements with pyramid style tinted polycarbonate OR can we substitute with tinted Dome polycarbonate or insulated flat glass? Response #11 Replace in kind

Inquiry #12 Angevine MiddleVerifying Shed roof replacement with Owens Corning Duration Dimensional shingle? Is H/T Grace Ice and Water and 2-layers #30 felt required as specified in project manual? Or can we utilize Owens Corning Ice and Water and 1-layer underlayment? Also does the shed replacement need an extended NDL warranty as project manual specifies for other complete reroof replacements? Response #12 Use Grace HT ice and water shield with 2-30# felts No, 3 year roofing contractor warranty only for shed Inquiry #13 Angevine MiddleVerifying use of Drexel metal for parapet cap replacement as metal manufacturer? Can we substitute H/T Metshield wrap in lieu of Fabric and brush grade acrylic per project manual? This would be for the main building parapet cap replacement as well as the 2 outbuildings. Response #13 Drexel ok. No on Metalshield Inquiry #14 Angevine MiddleVerifying 2 flat outbuildings EPDM system replacements with Carlisle system replacement, existing insulation and taper crickets to remain as is and 1 ½” PolyISO insulation to be mechanically overlayed with ½” Densdeck coverboard foam applied with adhered EPDM system is approved? Response #14 Follow specifications Inquiry #15 Angevine MiddleVerifying flat roof repairs are not specified to be bid on the Middle School? Response #15 Follows specifications

Inquiry #16 Centaurus HighVerifying Drexel SS-150 Mechanical Standing Seam panel is an approved alternate to the project manual specified Berridge panels listed as they as Snaplock not Mechanical panels? OR would a Drexel SS-200 panel mechanically seamed be allowed as it closer resembles the Berridge snap lock panels listed in the project manual? Response #16 Successful bidder will submit materials for approval Inquiry #17 Centaurus HighVerifying substitution of Ice and Water underlayment over entire S.S. metal panel roof deck areas with H/T Metshield? in lieu of Grace H/T so we can achieve the total systems 35yr. Kynar, 25yr. manufacturer weathertightness and 20yr. Workmanship warranties. Response #17 Follow specifications Inquiry #18 Centaurus HighVerifying use of Drexel metal for parapet cap replacement as metal manufacturer? Can we substitute H/T Metshield wrap in lieu of Fabric and brush grade acrylic per project manual? Response #18 No Inquiry #19 Centaurus HighVerifying we can reuse existing Reglet cut counterflashing at S.S. metal roof deck areas or is complete replacement needed? Response #19 Complete replacement Inquiry #20 Centaurus HighVerifying use of Carlisle system replacement of EPDM areas? Including use of Elastoform at cap to eaves trough to S.S. intersections in lieu of EPDM painted or Fabric and brush grade acrylic system? Response #20 See specifications. Valleys are EPDM

Inquiry #21 Centaurus HighVerifying EPS tapered crickets toward existing drains can be utilized with replacement of EPDM eaves trough areas? Response #21 No EPS. Inquiry #22 Centaurus HighVerifying ½” Densdeck coverboard is to be applied with low rise foam or can we mechanically attach? Prior to adhering EPDM replacement membrane. Response #22 Follow specifications Inquiry #23 Centaurus HighVerifying existing drains to remain as is during reroof with installation or if drain inserts are required during membrane replacement? Response #23 No drain inserts Inquiry #24 Centaurus HighVerifying flat roof repairs are not specified to be bid on the High School? Response #24 Follow specifications Inquiry #25 Fireside ElementaryVerifying main school roof replacement with Owens Corning Duration Dimensional shingle? Is H/T Grace Ice and Water and 2-layers #30 felt required as specified in project manual? Or can we utilize Owens Corning Ice and Water and 1-layer underlayment? Also does the shed replacement need an extended NDL warranty as project manual specifies for other complete reroof replacements? Response #25 Follow specifications. No extended warranty on shed

Inquiry #26 Fireside ElementaryVerifying Ice and Water can be installed at eaves 2rows or entire roof areas?, project manual does not specify I&W location as entire roof area only as existing. Response #26 Follow specifications Inquiry #27 Fireside ElementaryVerifying hand sealing of first 3 shingle rows is required? Response #27 Follow specifications Inquiry #28 Fireside ElementaryVerifying if Flex Seal is required to seal pipe jack replacements on sloped shingle roof areas or if we can I&W wrap pipe jacks with approved manufacturer underlayment to obtain extended warranty? Response #28 Successful bidder will submit for approval Inquiry #29 Fireside ElementaryVerifying gutter detach and reset during shingle reroof requires Flex Seal sealant to the interior or exterior gutters endcaps and outlets with premium fabric and brush grade acrylic or can we utilize Gutter specific sealant in lieu for watertightness? Response #29 Follow specifications Inquiry #30 Fireside ElementaryVerifying gutter and downspout replacement alternate option is needed as specified in project manual? And would this be for a similar 7” box style gutter with 4”x5” open face downspouts? Response #30 Follow specifications

Inquiry #31 Fireside ElementaryVerifying skylight curb reflash during shingle reroof requires crickets behind skylight per project manual specifications or can we install Ice and Water underlayment and new curb flashings in lieu of per manufacturer specifications? Response #31 Follow specifications Inquiry #32 Fireside ElementaryVerifying we can reuse the existing Reglet brick cut counterflashing at the shingle reroof areas or is complete replacement required? Response #32 Complete replacement Inquiry #33 Fireside ElementaryVerifying we can substitute Aluminum or Galvanized roof vents on the shed reroof in lieu of the polycarbonate vents existing? Response #33 Answered through submittal process with successful bidder Inquiry #34 Fireside ElementaryVerifying flat roof repairs are not specified to be bid on the Elementary School? Response #34 Follow specifications Inquiry #35 Sanchez InternationalVerifying Solar tube skylight replacement of 4 units similar and 16 units similar has specified manufacturer for dome replacement? Or if we can utilize Velux TCC022 and TCC014 respectively? Response #35 Replacement in kind

Inquiry #36 Sanchez InternationalConfirmation of existing Solar tube size dimensions on skylight replacements? Photos appear to show 16- 14” units and 4-22” dome units? As theses are specialty units dimensions will assist greatly with accurate replacement pricing. Response #36 Replacement in kind Inquiry #37 Sanchez InternationalVerifying all 6 shed units with storm damage are to be reroofed? As plans specify only 3 sheds. Response #37 Follow plans Inquiry #38 Sanchez InternationalVerifying Shed roof replacement with Owens Corning Duration Flex I/R (per Lafayette building code for I/R replacement requirement) Dimensional shingle? Is H/T Grace Ice and Water and 2-layers #30 felt required as specified in project manual? Or can we utilize Owens Corning Ice and Water and 1-layer underlayment? Also, do the shed replacements need an extended NDL warranty as project manual specifies for other complete reroof replacements? Response #38 Follow specifications Inquiry #39 Sanchez InternationalVerifying flat roof repairs are not specified to be bid on the International School? Response #39 See Drawing Inquiry #40 Broomfield HeightsVerifying Shed roof replacements with Owens Corning Duration Dimensional shingle? Is H/T Grace Ice and Water and 2-layers #30 felt required as specified in project manual? Or can we utilize Owens Corning Ice and Water and 1-layer underlayment? Also does the shed replacement need an extended NDL warranty as project manual specifies for other complete reroof replacements? Response #40 Follow specifications

Inquiry #41 Broomfield HeightsVerifying flat roof repairs are not specified to be bid on the Middle School? Response #41 See specifications Inquiry #42 Broomfield HighVerifying metal coating manufacturer and system specifications. Can we utilize Henry Acrylic coating system in lieu of HydroStop? With 5- step 4- part system of 1)Cleaning/power wash. 2)Acrylic 289 penetrations/trim application. 3)Rust inhibitor primer 941 application. 4)Base Coat 505 application. 5)Top Coat 510 application.? Manufacturer system Warranty 10? 15?20? Response #42 Follow specifications

Inquiry #43 Broomfield HighVerifying Shed roof replacements with Owens Corning Duration Dimensional shingle? Is H/T Grace Ice and Water and 2-layers #30 felt required as specified in project manual? Or can we utilize Owens Corning Ice and Water and 1-layer underlayment? Also does the shed replacement need an extended NDL warranty as project manual specifies for other complete reroof replacements? Response #43 Follow specifications Inquiry #44 Broomfield HighVerifying flat roof repairs are not specified to be bid on the High School? Response #44 Follow specifications Inquiry #45 University Hill ElementaryVerifying access can be utilized at the back South East maintenance building area with parking spots for dumpster use when performing reroof demo with trash chutes and material loading with crane? Response #45 To be determined with successful bidder

Inquiry #46 University Hill ElementaryVerifying Heat Cable Ice Melt is to be completely replaced at all (8) circuit areas? Will licensed electrician be provided by School District or to be provided by G.C.? Response #46 Electricial by contractor. Follow existing conditions Inquiry #47 University Hill ElementaryVerifying Heat Cable Ice Melt is to be installed as existing or will Engineered system be required? As existing system appears minimal at (8) areas in lieu of complete system. Response #47 See response 46 Inquiry #48 University Hill ElementaryVerifying if Snow Guards are to be installed and locations as specified in project manual as site visit did not appear to show any snow retention? Response #48 Follow specifications Inquiry #49 University Hill ElementaryVerifying if an Engineered snow retention system is required? Or snow guards at the heat cable ice melt (8) areas only for cable protection vs. fall hazard protection? Response #49 Engineered snow retention required. Inquiry #50 University Hill ElementaryVerifying if HVAC repairs or replacement of damaged or non-operable units is to be done by School District or to be provided by G.C.? Also, what penetration or units are in need or repairs or removal as 4-5 story access was not available? Response #50 Areas shown on roof plan. All repairs by contractor

Inquiry #51 University Hill ElementaryVerifying main school roof replacement with Owens Corning Duration Dimensional shingle? Is H/T Grace Ice and Water and 2-layers #30 felt required as specified in project manual? Or can we utilize Owens Corning Ice and Water and 1-layer underlayment? Also does the shed replacement need an extended NDL warranty as project manual specifies for other complete reroof replacements? Response #51 See previous response Inquiry #52 University Hill ElementaryVerifying Ice and Water can be installed at eaves 2rows or entire roof areas?, project manual does not specify I&W location as entire roof area only as existing. Response #52 Follow specifications Inquiry #53 University Hill ElementaryVerifying hand sealing of first 3 shingle rows is required? Response #53 Follow specifications Inquiry #54 University Hill ElementaryVerifying if Flex Seal is required to seal pipe jack replacements on sloped shingle roof areas or if we can I&W wrap pipe jacks with approved manufacturer underlayment to obtain extended warranty? Response #54 Follow specifications Inquiry #55 University Hill ElementaryVerifying gutter detach and reset during shingle reroof requires Flex Seal sealant to the interior or exterior gutters endcaps and outlets with premium fabric and brush grade acrylic or can we utilize Gutter specific sealant in lieu for watertightness? Response #55 Will address with successful bidder at submittals

Inquiry #56 University Hill ElementaryVerifying gutter and downspout replacement alternate option is needed as specified in project manual? And would this be for a similar 7” box style gutter with 4”x5” open face downspouts? Response #56 See specifications Inquiry #57 University Hill ElementaryVerifying RTU curb reflash during shingle reroof requires crickets behind AHU Curbs per project manual specifications or can we install Ice and Water underlayment and new curb flashings in lieu of per manufacturer specifications? Response #57 Follow specifications Inquiry #58 University Hill ElementaryVerifying we can reuse the existing Reglet brick cut counterflashing at the shingle reroof areas or is complete replacement required? Response #58 Complete replacement Inquiry #59 University Hill ElementaryVerifying if a “Red” Dimensional shingle is to be utilized on the sloped main roof replacement? Response #59 Determined at submittal process Inquiry #60 University Hill ElementaryVerifying detached Metal Gazebo (blue roof) roof is not specified to be bid? Response #60 Included in bid Inquiry #61 University Hill ElementaryVerifying flat roof repairs are not specified to be bid on the Elementary School? Response #61 See roof plan

Inquiry #62 University Hill PrimaryVerifying Shed roof replacements with Owens Corning Duration Dimensional shingle? Is H/T Grace Ice and Water and 2-layers #30 felt required as specified in project manual? Or can we utilize Owens Corning Ice and Water and 1-layer underlayment? Also does the shed replacement need an extended NDL warranty as project manual specifies for other complete reroof replacements? Response #62 Follow specifications Inquiry #63 University Hill PrimaryVerifying if we can reinstall 1-shed roof solar powered fan vent or if complete replacement if required? Reinstall if workable Response #63 Inquiry #64 University Hill PrimaryVerifying Berridge 24- gauge Deep Deck 36” Panel with exposed underside and accessory trim flashing is an acceptable replacement on the detached gazebo roof? Is, manufacturers upgraded warranty required on this accessory structure or is standard warranty acceptable? Response #64 Follow specifications Inquiry #65 University Hill PrimaryVerifying direct parking spot access in front of the school at the drop off locations for shed(s) and gazebo reroof demo and material loading available for G.C. use? Response #65 Determined with successful bidder Inquiry #66 University Hill PrimaryVerifying flat roof repairs are not specified to be bid on the Elementary School? Response #66 See roof plan

Inquiry #67 Sanchez International SchoolThere are 3 sheds that are scheduled to be re replaced on the drawings, there are a total of 6 on the property, I want to make sure that we are only doing the 3 on the scope of work? Response #67 See roof plan and follow Inquiry #68 Centaurus High SchoolFor the metal roof replacement on the school, there are 3 suggestions to use, (C, Z, and Double Loc) there is a wide range of pricing on each of these so which one would you like us to price out? The existing panel is a Double Z loc Panel Response #68 Replace in kind Inquiry #69 Can we submit the use of synthetic felt for ALL the shingle roofs in place of 30# felt? Response #69 No