May 10, 2017 ADDENDUM #1 IFB 17-074 Roof Replacement and Repairs at Lindenwood Park Addendum #1 is being issued to clarify information from the pre-bid meeting on 5/4/2017 and to provide a Revised Bid Form. • Performance and Payment Bonds: 100% Performance and Payment Bonds are required for contracts of public works of at least $50,000.00. A bid adder for these bonds has been included on the Revised Bid Form. • Roof Replacement on Gift Shop and General Store Buildings: new roof materials shall be Hand Split Cedar Shakes, Medium (approximately 1/2” – 3/4” at butt). • Ice/Water Shields: with Roof Replacements on the Gift Shop and General Store, ice and water shield shall be installed at chimney, windows and eaves prior to Cedar Breather or similar approved product. • Roof Repairs on Alternate Bids: replacement roof materials shall match existing on each of these buildings (Stake House, Detached Kitchen, Stockyard, and Grist Mill). • Lightning Protection: all lightning protection devices shall be re-installed in the same condition and locations. • Details of needed repairs for Alternates – see attached report from County’s consultant, Central States Roof Consulting • Materials to be used on valleys around windows – copper • Minimum Warranty Terms are as follows (Bidders must list Warranty Terms on Bid Form): Replacement Roofs: 1 Year Labor; 30-40 Years Materials Repaired Roofs: 1 Year Labor & Materials Bidders shall sign this Addendum as acknowledgment and return it with the bid. BID ADDENDUM Addendum #1 Dated May 10, 2017 We, the undersigned, acknowledge the receipt of the above addendum, as dated. By: Title: Company: Date: BID FORM (Revised) IFB 17-074 Roof Replacement and Repair at Lindenwood Park (Bidder name) Submits the following bid for this project: Bid Price to Remove & Replace Gift Shop Roof: $ Bid Price to Remove & Replace General Store Roof: $ Adder Performance & Payment Bonds: $ Number of Days to Begin Work after Notice to Proceed: Number of Days to Complete Project as Specified: Warranty Terms: Bid Alternates – Please Attach Scope of Work on Separate Sheet Estimate to Repair “Stake” House Roof: $ Estimate to Repair Detached Kitchen Roof: $ Estimate to Repair Stockyard Roof: $ Estimate to Repair Grist Mill Roof: $ Authorized Signature Date Central States Roof Consulting ROOF CONDITION SURVEY Presented To: St. Charles County Parks Facility Inspected: Daniel Boone Home & Heritage Center 1868 Highway F Defiance, MO 63341 Inspection Dates: May 26, 2016 162OO Pepper View Court, Chesterfield MO 63005 (P) 314-560-3038 (F) 6)6-216^1006 miletij(*sbcglobal.net Central States Roof Consulting rrtnrtfiT r\\ttftiV1ftfIJtttCrJUtff Executive Summary At the request of Cory Bextermueller, Construction Manager for St. Charles County and Ryan Graham, Park Historian for St. Charles County Parks Department, CSRC was asked to inspect the roofs at the Daniel Boone Home & Heritage Center located at 1868 Highway F in Defiance, Missouri 63341. This condition assessment is needed to establish budgets for repair, maintenance and roof replacement. On May 26, 2016 CSRC's Joseph Mileti met with the aforementioned St. Charles County staff and with Jim Peanick, Director at the site. Mr. Peanick has been at the complex for some time and has the best knowledge of the roofs age and leakage conditions at the various buildings. All roofs were then inspected from the ground which is functional for an assessment of this type and scope. Reference Standards • The 2015 International Building Code, Chapter 15, Roof Assemblies and Rooftop Structures. • The National Roofing Contractors Association Roofing and Waterproofing Manual-Fourth Edition • The Cedar Shake & Shingle Bureau publications Inspection Findings The complex has sixteen numbered buildings on site and another eight structures that are not included specifically in the self-guided tour book but are storage and gazebo structures associated with a numbered building. With the exception of the Pavilion, which is a new architectural metal panel roof and the Gift Shop, which has an asbestos tile roof covering, all the structures have wood shingles or wood shake roofs. The common conditions noted are: • Cupping & curling • Displaced ridge cap • Inadequate ventilation • Organic growth • Missing gutter • Premature weathering These conditions are documented specific to each building in the photo array of this report. The following table is our assessment, with budget estimates for maintenance, spot repair or replacement. 16X09 Pepper View Court, Chesterfield MO 63005 (P) 3I4-S6O-3O38 (F) 636-ZI6-OO96 miJctij-vbcylob.il.net BUILDING ROOF AGE ROOF TYPE CONDITION M, RORR Pump House 7 Wood Good to fair Maintain shingles Covered -20 Wood Fair to poor Repair as bridge shingles needed Old Barn 2 Wood Good Maintain shingles Pavilion #1 1 Metal Panel Good Maintain Gift shop 40+ Asbestos tile Very poor Replace Squire Home 20 Wood Good to fair Repair #2 shingles Daniel Boone 10-12 Wood Good to fair Repair & Home shingles maintain Sappington- 18 Wood Fair Maintain Dressel #4 shingles School House 20+ Wood Fair-poor Repair as #3 shingles needed Dressmaker 6 Wood shake Good to fair Maintain shop #5 Potters shop -20 Wood shake Fair Repair as #6 needed Pottersshed n/a Wood shake Very poor Replace Carpenters 20+ Wood shake Fair Maintain shop #7 Carpenter 20+ Wood shake Fair to poor Repair as shop porch needed Two gazebos 20+ Wood Fair to poor Repair as shingles needed Peace chapel 1 Wood Very good Maintain #8 shingles Restrooms 1 Wood Very good Maintain shingles Stake House 5 Wood Very good Repair Valley #9 shingles Detached n/a Wood shake Fair to poor Repair as Kitchen #10 needed Wood storage n/a Wood Fair to good Maintain & chicken shingles coop Stockyard n/a Wood shake Poor Repair Engledrew -20 Wood shake Fair Maintain House #11 Smoke House -20 Wood shingle Fair Maintain Blacksmith 4 Wood plank Good Maintain Shop lb20Q Pepper Vil-w Court, Che<;h.·didd MO 63005 (P) Ji4-'ib0-J03ff (F) bJ0-216-009<, rniletijr<i'shcg1obal.ud Land Office -20 Wood shake Fair Maintain #12 General Store n/a Wood shake Very Poor Replace #13 Grist Mill #14 n/a Wood Fair to poor Repair shingles Callaway n/a Wood Good to fair Repair House #15 shingles needed Newton- 10 Wood shingle Good Maintain Howell House #16 Notes: Service rates range from $95-$102 per man-hour. Maintenance includes removal of debris from the roof surface and water outlets. Repairs are related to a specific item that needs to be restored to an as built condition. Repair as Needed, are actions to stop water leaks prior to budgeting for roof replacement. The Potters Shed is not priced as the entire structure should be replaced. CSRC uses the following classifications and guidelines: Condition - Action Plan Good roofs and those that have not Perform regular maintenance and spot exceeded their design service life. repairs. _______ Fair condition and roofs that have not Perform restorative repairs with the intent of exceeded design service life. getting the roof in a condition where regular annual maintenance- can be executed- . Old roofs that have exceeded design service Repair as needed to stop water leaks until life and/or roofs that have been restored fun��_i�re budgeted for replacement. previously. I ------------ -- -------------- Poor & Failing _ �eP-lac���s funds are available. Conclusions & Recommendations Wood roofing has a design service life of 40-50 years based upon suppliers warranty parameters. We have enclosed a document from Watkins Sawmills as a reference. The Cedar Shake & Shingle Bureau is more conservative and use 30-40 years, based upon geographic location. It is our professional opinion none of the roofs installed on the complex are likely to meet or exceed this design service life. Our opinion is based upon the following conditions documented in this report: Many of the roofs are installed over solid deck which makes is difficult for the wood to dry rapidly. When the exterior sides dry they will shrink. The wet and moist undersides are soft and weak, which results in curling and bowing. Improper nailing patterns may also be a factor, but it is not the dominant reason in our professional opinion. The fact that many of the newer roofs, those installed in the last four years, show this condition is reason to upgrade some installation methods. u,209 Pepper Vlew Court, Chesterfield MO «,3005 (P) 314-s«,o-3039 (F) «,3«.-:z_lf,-�oc,«, mlletll\9•1,qJobaLnet Three or four of the buildings have ridge shingles that extend above the plane of the roof. This is referred to as "combed" or "turkey feathers" and the intent was to capture a detail consistent with the time period. This detail is susceptible to wind damage and many of the immediate repairs are related to replacing wind displaced ridge shingles. Recommendations 1. Incorporate underlayment that allows for the wood to dry quickly and evenly following a rainfall. (See Cedar Breather brochure) 2. Install wood shake versus wood shingles on future projects. The shake is more consistent with product available during the early 1800's and medium grade shake is more hail and impact resistant than medium grade wood shingles. 3. Cease specifying the combed ridge cap shingles. / affirm, under penalties for perjury, that the opinions and representations in this report are true. Prepared by Joseph Mile, 2016 16X09 Pepper View Court, Chesterfield MO 63005 <T*) M4-56O-3O38 (F) 636-116-0096 miletiji»sbcglobal.nt;t Photos 1 -4 are the pump house which is not one of the numbered buildings on the campus. These wood shingles are estimated to be seven years old. Photo 4 shows curling. 5 6 The Covered Bridge is not a numbered building. The wood shingles are found to be in fair to poor condition as evidenced by the curling visible in photo 6.