OK-ROOF Passing Score 2026: Exactly What You Need to Pass

The Passing Score, Exactly

If you only remember one number before test day, make it this one: the Oklahoma Roofing Contractor Commercial Endorsement Examination requires 70% correct on 50 scored questions. That means you need at least 35 correct answers out of 50 to pass. The Oklahoma Construction Industries Board sets this threshold, and PSI, the third-party administrator, delivers the exam by computer at approved testing centers across the state.

There's no partial credit for partially correct reasoning and no curve applied after the fact. The scoring is a straightforward count of correct answers against the 50 scored items. Anyone telling you a different percentage, question count, or time limit is likely describing a different credential entirely - this article sticks strictly to the Oklahoma commercial roofing endorsement exam as administered by PSI.

How the 50 Scored Questions Are Delivered

The exam runs 2 hours and 30 minutes and is computer delivered at a PSI testing center. It's also open book, which changes how you should prepare compared to a closed-book licensing exam. You won't be memorizing every code citation word-for-word - you'll be learning where to find information quickly and understanding it well enough to apply it under time pressure.

A silent, nonprinting, nonprogrammable calculator is permitted, which matters for questions involving slope calculations, material quantities, or flashing dimensions. Bring your own calculator that meets these specifications, since testing centers won't supply one for you.

For a full breakdown of what open-book format actually means for your prep strategy and how demanding the exam really feels in practice, see How Hard Is the OK-ROOF Exam? Complete Difficulty Guide 2026.

Unscored Experimental Items and Why They Don't Hurt You

PSI may embed up to 10 unscored experimental questions alongside the 50 scored ones. These items are indistinguishable from scored questions on screen - you won't know which ones count. That's intentional; it lets the Construction Industries Board test new question quality before adding them to future scored pools.

The important detail for your passing score calculation: the time spent on these experimental items does not count against Oklahoma's overall time limit, and they never factor into your 70% requirement. Practically, this means you should answer every question with equal effort and never try to guess which ones "don't matter," because guessing wrong could accidentally mean skipping a scored item.

Why Low Slope Roofing Deserves Extra Attention

The exam draws its 50 scored questions from six domains, and they are not weighted equally. Low Slope Roofing is the largest domain, meaning a disproportionate share of your 35-correct target will come from this content area. If you're deciding where to spend the next few study sessions, this is the domain to prioritize first.

The remaining domains - General Roofing Knowledge, Architectural Metal Roofing Systems and Sheet Metal Flashing, Moisture and Energy Control, Repairs and Reroofing, and Safety - still contribute meaningfully to your scored total. For a complete walkthrough of what each domain actually tests, review OK-ROOF Exam Domains 2026: Complete Guide to All 6 Content Areas before you build a study schedule.

Open Book, Calculator, and What "Passing" Really Tests

Because the exam is open book, PSI's current reference requirement includes the 2025 NRCA Steep Slope manual. Passing at 70% doesn't require rote memorization of every page - it requires knowing the manual's structure well enough to locate the right table, detail, or specification within your time budget, then correctly interpreting it against the question stem.

This is a meaningfully different skill than closed-book test-taking. Many candidates underestimate open-book exams, assuming they can simply "look everything up." In practice, with only 2 hours 30 minutes for up to 60 total questions (50 scored plus up to 10 experimental), flipping through an unfamiliar reference costs you the minutes you need to reach 35 correct answers. Familiarity with the reference material before test day is what actually earns the passing score - not the ability to bring it into the room.

Don't Forget the Roofing Business and Law Exam

Passing the 70% threshold on the 50-question technical exam is necessary but not sufficient for the commercial endorsement. Oklahoma also requires a separate 50-question Roofing Business and Law examination. Both exams factor into your overall path to endorsement, and both are administered through PSI as part of the same credentialing process.

Beyond the exams themselves, applicants must be at least 18 years old, hold an Oklahoma roofing registration in good standing, designate an actively engaged qualifying party, register the business with the Secretary of State, and document $1 million in general liability coverage plus workers compensation. For the complete eligibility checklist, see OK-ROOF Requirements 2026: Eligibility, Prerequisites & How to Qualify.

On the fee side, initial registration runs $75 with an initial commercial endorsement fee of $230; annual renewal is $75 for registration plus $100 for the endorsement, and starting January 1, 2027, four continuing education hours become an annual requirement for the commercial endorsement. A full pricing breakdown, including the $92 exam fee itself, is available at OK-ROOF Certification Cost 2026: Complete Pricing Breakdown.

A Domain-Ordered Study Plan for the Score You Need

Since Low Slope Roofing carries the most weight, it makes sense to schedule it first while your energy and focus are freshest, then move through the remaining domains in decreasing order of how unfamiliar they feel to you personally. A short, structured schedule tied to OK-ROOF's actual domain list works better than generic study advice borrowed from unrelated exams.

Use practice questions modeled on the actual 50-question, open-book format at our practice test platform to gauge whether you're consistently clearing 35 correct answers before you schedule your PSI appointment. For a deeper dive into building this schedule around your own weak spots, see OK-ROOF Study Guide 2026: How to Pass on Your First Attempt.

If You Fall Short of 70%

Not every candidate clears 35 correct answers on the first attempt, and that's not unusual for an open-book exam that still demands strong domain knowledge under a real time limit. If you fall short, review which domains cost you the most missed questions rather than restudying everything equally. Since Low Slope Roofing carries the heaviest weight, a shortfall there has an outsized effect on your total score.

Before scheduling a retake, it's worth understanding how the overall exam difficulty and pass data compare to what you experienced. OK-ROOF Pass Rate 2026: What the Data Shows and Is the OK-ROOF Certification Worth It? Complete ROI Analysis 2026 both offer useful context for candidates weighing their next steps after a close attempt.

Frequently Asked Questions