UNSPSC 30151610: Hip and ridge

Roofing accessory used for ventilation as well as draining rain water.

UNSPSC 30151610 Hip and ridge is a Commodity code that encompasses roofing repair and replacement services for institutional and public facilities, including removal of existing roof systems, installation of new membranes and materials, and associated maintenance work on roof assemblies. State and local governments buy under this code for roof replacement at school buildings, transit facilities, fire protection districts, health department facilities, and county buildings. Issuing bodies include school districts (Howard County Board of Education, Houston Independent School District), transit authorities (City of Rome Transit Department), fire protection districts (Santa Clara County Central Fire Protection District), and state health agencies (Texas Health and Human Services Commission on behalf of the Department of State Health Services). Contracts typically require commercial roofing licensure, five or more years of relevant experience with verifiable references, multiple manufacturer certifications (thermoplastic polyolefin, EPDM, modified bitumen, built-up asphalt), and substantial insurance coverage including general liability of $1 million to $2 million per occurrence. Project values range from approximately $150,000 to $4 million per job, with performance often required during summer breaks for school systems and subject to prevailing wage requirements on public works.

Recent activity spans California, Texas, Georgia, and Maryland. The Howard County Board of Education issued IFB 020.27.B9 (due September 23, 2026) for annual or as-needed roof replacement contractor services covering thermoplastic, EPDM, multi-ply asphalt, modified bitumen, metal panels, and shingles on projects ranging 70,000 to 125,000 square feet, with a 29% minority business enterprise participation goal for state-funded work and fourteen bids received. Santa Clara County Central Fire Protection District issued ITB ITBCFDFY270065 (due September 9, 2026) for roof replacement using thermoplastic polyolefin membrane at a single facility, with mandatory pre-bid site visit on August 24, 2026, and prevailing wage requirements. Houston Independent School District issued RFP 270002 (due July 30, 2026) for roofing repairs and improvements at two high school facilities with completion by December 31, 2026 and a mandatory site visit on July 8, 2026. The City of Rome, Georgia issued Bid 037-26 (due October 29, 2026) for transit department roof coating services. Texas Health and Human Services Commission issued IFB HHS0017204 (due June 3, 2026) for roof repairs at a state infectious disease facility with ESBD set-aside designation and HUB subcontracting plan requirements.