25-N0817C Addendum #3.pdf
PDF 90 KB Posted
- Solicitation number
- 25-N0817C
- Issued by
- Matanuska-Susitna Borough, Alaska
About this file
This document is Addendum No. 3 for the Alaska Veterans & Pioneers Home Roof Replacement project (Bid No. 25-N0817C), issued by the State of Alaska on April 3, 2025. The addendum provides clarifications to contractor questions regarding specific technical specifications for the roof replacement project. Key details include confirmation that 5/8" fire retardant plywood roof sheathing should be used, wood blocking/spacers do not need to be fire retardant, and vent space and blocking should be 1.5" per the drawing. The bid deadline remains April 8, 2025, at 2:00 PM, and contractors are required to acknowledge this addendum on their bid form.
The addendum also addresses a contractor's request for an additional metal roof panel system, specifically rejecting a 24-gauge RP 200 onsite fabricated metal panel system because its rib height does not meet specifications. Additionally, the document reiterates requirements from a previous addendum regarding the Build America Buy America Act (BABAA), noting that if contractors propose self-rolled or on-site rolled roofing products, they will need certification from coil and coating manufacturers and a self-certification from the contractor. The addendum maintains that blocking for the Hunter Cool-Vent, vented nail base composite polyisocyanurate panels should be assumed at 16 inches on center.
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Other files
| File | Type | Posted |
|---|---|---|
| BABAA & VA Forms.pdf.crdownload | CRDOWNLOAD file | |
| 25-N0817C Addendum #4.pdf | ||
| ITB# 230006097-2, KCC Rockfall Mitigation.pdf | ||
| J - Proposed Modifications to Sample Master Agreement - AV RFP 2025-0200-0044.docx | DOCX document | |
| 25-N0817C Addendum #2.pdf | ||
| BABAA & VA Forms.pdf | ||
| AVPH Roof Sign-in Sheet.pdf | ||
| 25-N0817C Addendum #1.pdf | ||
| 25-N0817C Invitation to Bid.pdf | ||
| 25-N0817C Invitation to Bid.pdf.crdownload | CRDOWNLOAD file |
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Text version
INVITATION TO BID
25-N0817C Alaska Veterans & Pioneers Home – Roof Replacement
Issued: APRIL 3, 2025
ADDENDUM NO. 3
Information in this addendum takes precedence over original information. All other provisions of the document remain unchanged.
Note to Bidders: Bidders are required to acknowledge this addendum on the bid form.
This addendum consists of:
1. Addendum No 3-document consisting of 2 pages
2. Contractor Questions
3. Attachments:
• Addendum No. 3
4. Bid Deadline remains April 8, 2025 @ 2:00 PM
Contractor Questions
1. Question: Specification 06 16 00 section 2.3.C.2. calls out 7/16” OSB roof sheathing, but the R2 assembly on plan page G-100 calls out 5/8” fire retardant plywood sheathing.
Are we to install 7/16” OSB roof sheathing or 5/8” fire retardant plywood roof sheathing?
Both sheathings are options for the Hunter Cool-Vent, vented nail base composite polyisocyanurate panels. Please advise.
Response: 5/8” fire retardant plywood roof sheathing.
2. Question: If the 5/8” fire retardant plywood sheathing is the option selected, does the air gap wood blocking spacers need to be fire retardant?
Response: No, the wood blocking/spacers do not need to be fire retardant.
3. Question: Specification 06 16 00 section 2.3.C.3. states “ Spacers: Wood furring strips or blocks not less than ¾ inch thick and spaced not more than 24inces o. c.” Plan page G100 the R2 roof assembly calls out 1.5” air gap with wood blocking. Which is preferred, ¾” wood blocking or 1.5” wood blocking?
Response: Vent space and blocking should be 1.5” wood blocking per drawing.
4. Question: Are we to request pricing for the Hunter Cool-Vent, vented nail base composite polyisocyanurate panels with wood blocking air gaps 16” o. c. or 24” o. c.?
Please advise.
Response: Blocking will need to be coordinated with fastening pattern, but assume 16” o.c.
5. Question: We would like request an additional metal roof panels system option. Would it be acceptable to install a 24-gauge RP 200 onsite fabricated metal panel system?
Response: See responses to Addendum #2 questions. For the RP 200 panel in particular, it is not acceptable as the rib is only 1.25” and not 1.625”-2” high.
Also per Addendum #2: Note that if contractors propose roofing products that they will self-roll or roll on-site, the requirements for BABAA will still apply. In that case, it will minimally require certification from the coil and coating manufacturer(s) and a self-certification from the contractor (see sample signature form in Spec 00 10 00 BABAA Requirements).
ATTACHMENTS:
1. 25-N0817C Addendum #3.pdf
END OF ADDENDUM 3
Issued: 4/3/2025
File details come from the government source that posted it. Updated .