Humble Independent School District Ionwave #2026-10 Addendum 4

Humble ISD Roofing and Building Sealant Replacement for Multiple Schools

Humble Independent School District (Humble ISD) is seeking competitive sealed proposals for major roofing and building sealant replacement projects at four elementary schools and one middle school in Humble, Texas. - Government Buyer - Humble Independent School District (Humble ISD), Purchasing Office - Architect/Engineer of Record: Armko LLC - Project Scope - Removal and replacement of existing roofing systems with a specified two-ply hybrid system (includes base sheet, insulation to R-25, cover board, modified bitumen interply, fleece back PVC cap membrane) - Installation of U.L. ES-1 certified edge metals, copings, gutters, and downspouts (must meet 120-mph wind warranty) - Replacement of building sealants at all control joints, including wet glazing of windows and doors - Painting of wall louvers and sun-shades to match new factory finished edge metal - Elastomeric coating on exterior EIFS facades at Deerwood Elementary - Curved barrel roof area at Creekwood Middle School - Roof drain water testing and repairs as needed - Roof insulation and cover board installation (polyiso rigid insulation, adhered cover board) - Repairs to stucco walls and replacement of weep holes with thru-wall flashing - Products/Services Requested - Two-ply hybrid roofing system (no specific OEMs named, but must meet warranty and wind speed requirements) - Metal edge flashings, gutters, downspouts, coping caps - Building sealant and wet glazing materials - Elastomeric coatings for EIFS - Engineering and warranty services (Texas Registered Engineer-stamped calculations, watertight warranty) - Unique/Notable Requirements - All metal roof replacements require a watertight warranty and engineer-stamped calculations - 120-mph wind warranty for edge metals and copings - Coordination for work during the school year if all campuses are awarded to a single contractor - Strict adherence to Humble ISD's asbestos notification and conflict of interest policies - Owner's contingency allowance of $150,000 per location - Proposal bond, 10% retainage, and detailed submission requirements (subcontractor lists, references, qualifications) - Budget and Timeline - Combined project budget: $10.8 million - Substantial completion required by August 2, 2026 (timeline negotiable) - Locations - Creekwood Elementary School, Deerwood Elementary School, Greentree Elementary School, Pine Forest Elementary School, Creekwood Middle School (all in Humble/Kingwood, TX) - Humble ISD Maintenance and Construction facility (contracting office)

Description

Humble ISD is soliciting Competitive Sealed Proposals for roofing and building sealant replacement at Creekwood, Deerwood, Greentree, and Pine Forest Elementary Schools. The project includes roof replacement, sealant work, and related construction activities as specified in the bid documents. The Architect/Engineer of Record is Armko LLC. Bidders must register on the District's online bidding system and submit proposals by April 23, 2026, 2:00 PM CT. A pre-proposal conference and site walk will be held on April 9, 2026.

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