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100+ Free NM GS-21 Roofing Contractor Practice Questions

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2026 Statistics

Key Facts: NM GS-21 Roofing Contractor Exam

75%

Passing Score (Each Section)

PSI / NM CID

100 Q

Practice Questions

OpenExamPrep

110 Q

Exam Questions (60+50)

PSI

$68.88

Exam Fee

PSI

2 yrs

Experience Required

NM CID

New Mexico requires GS-21 roofing contractors to pass a PSI-administered open-book exam with a 60-question trade section and a 50-question business & law section, each requiring 75%. Two years of roofing experience is required.

About the NM GS-21 Roofing Contractor Exam

The New Mexico GS-21 Roofing Contractor exam is administered by PSI and consists of a 60-question trade section (150 minutes) and a 50-question business and law section (130 minutes). Both sections are open-book and require a 75% passing score. Topics include estimating, plan reading, surface preparation, steep and low slope roofing, BUR, waterproofing, components, and safety.

Questions

60 trade + 50 business & law scored questions

Time Limit

150 min (trade) + 130 min (B&L)

Passing Score

75% on each section

Exam Fee

$68.88 (PSI / NM Construction Industries Division)

NM GS-21 Roofing Contractor Exam Content Outline

25%

Roofing Systems

Steep-slope and low-slope roofing systems, built-up roofing (BUR), waterproofing, and repair methods

20%

Estimating & Plan Reading

Roof area calculations, material takeoffs, blueprint reading, waste factors, bid preparation, and specifications

15%

Surface Prep & Planning

Deck inspection, surface preparation, moisture testing, existing roof assessment, and project planning

15%

Components & Materials

Flashing, fasteners, insulation, underlayment, ventilation, drains, edge details, and material storage

15%

Safety & OSHA

Fall protection, scaffolding, hazard communication, hot material handling, personal protective equipment

10%

State Law & Business

NM Construction Industries Division regulations, licensing, lien law, contracts, insurance, and bonding

How to Pass the NM GS-21 Roofing Contractor Exam

What You Need to Know

  • Passing score: 75% on each section
  • Exam length: 60 trade + 50 business & law questions
  • Time limit: 150 min (trade) + 130 min (B&L)
  • Exam fee: $68.88

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

NM GS-21 Roofing Contractor Study Tips from Top Performers

1Focus on estimating and plan reading — roof area calculations, material takeoffs, waste factors, and bid preparation
2Know the differences between steep-slope and low-slope systems including BUR and waterproofing applications
3Study OSHA fall protection requirements thoroughly, including hot material handling safety for built-up roofing
4Review NM Construction Industries Division regulations, licensing classifications, and lien law
5Practice surface preparation assessment — moisture testing, deck inspection, and existing roof evaluation

Frequently Asked Questions

What does the New Mexico GS-21 roofing contractor exam cover?

The NM GS-21 exam covers estimating and plan reading, surface preparation and planning, steep and low slope roofing (including BUR and waterproofing), roofing components, safety, and NM business and law. It has a 60-question trade section and a 50-question B&L section.

What is the passing score for the NM GS-21 roofing exam?

You must score at least 75% on each section separately — the 60-question trade section and the 50-question business and law section. Both are open-book.

How much does the NM GS-21 roofing exam cost?

The exam fee is $68.88 per attempt, paid to PSI when scheduling. Additional fees apply for the license application through the NM Construction Industries Division.

What experience is required for the NM GS-21 roofing license?

New Mexico requires a minimum of 2 years of verifiable roofing experience to qualify for the GS-21 Roofing Contractor license. You must also pass both sections of the PSI-administered exam.