NM GS-21 Roofing Contractor study guide
NM GS-21 Roofing Contractor · Work through your exam, one topic at a time.
The NM GS-21 Roofing Contractor credential is a New Mexico contractor classification for roofing work, administered within the state's construction licensing structure under the Regulation & Licensing Department (RLD). This study page is an independent preparation resource for candidates working toward that classification; it is not affiliated with, endorsed by, or operated by the State of New Mexico or any state agency. The four domains below mirror the usual shape of a contractor trade exam: roofing scope and trade knowledge, New Mexico construction licensing and regulation, business/contract/employment practices, and safety, codes, and jobsite practices, weighted evenly at 25 percent each. Preparation should combine trade fundamentals (roof systems, flashing, waterproofing, deck and substrate conditions, estimating) with the statutory and rule framework for licensed contracting in New Mexico, plus business law and OSHA-style jobsite safety. The NM GS-21 Roofing Contractor study guide has 4 sections and about 1,437 words.
01Roofing Contractor Scope and Trade Knowledge
The New Mexico GS-21 classification covers roofing work: roof coverings, underlayment, flashing, roof-deck attachment, waterproofing, roof drainage, and the sheet-metal work incidental to roofing - drip edge, valley metal, vent caps, counterflashing. It does not reach structural framing, plumbing changes beyond the roof penetration, or electrical work for rooftop equipment.
353 words, about 2 min02New Mexico Construction Licensing and Regulation
New Mexico's Regulation and Licensing Department, through the Construction Industries Division (CID), issues contractor licenses and adopts construction codes in NMAC Title 14. A license is required before you advertise, bid, offer, or contract for work - submitting a bid without a license is itself a violation, not a paperwork problem to fix later.
377 words, about 2 min03Business, Contract, and Employment Practices
New Mexico levies no sales tax. Contractors pay gross receipts tax (GRT) on receipts from construction services - labor plus materials - at the combined rate for the location where the work is performed, and remit it on the CRS-1.
354 words, about 2 min04Safety, Codes, and Jobsite Practices
New Mexico operates its own occupational safety plan through the Occupational Health and Safety Bureau (NMOHSB), covering private and public employers, applying the 29 CFR 1926 construction standards. Fall protection is required at 6 feet in construction.
353 words, about 2 min