Roofing Certification

The Roofing Certification is a free intermediate-level, 20-minute skill test from Science of Apps. It tests practical roofing knowledge — steep-slope and low-slope roof systems, installation, flashing and ventilation, roof safety and fall protection, and inspection, leaks and maintenance — written to the NRCA Roofing Manual, ARMA asphalt shingle guidance, the International Residential Code (Chapter 9) and OSHA construction fall-protection rules for 2026. Code figures are from US codes; always follow local codes and manufacturer instructions. Score 70% or more on its 20 questions to earn a verifiable Roofing Proficiency certificate (SOA-RZ). Every question is based on published standards and research — including NRCA Roofing Manual and technical guidance (National Roofing Contractors Association), International Residential Code Chapter 9: Roof Assemblies (International Code Council), Asphalt shingle installation and ventilation resources (Asphalt Roofing Manufacturers Association) — and each answer is explained with its source.

Science of Apps offers a free Roofing Certification, updated for 2026 and 2027. It measures roof systems and materials, installation, flashing and ventilation, roof safety and fall protection and inspection, leaks and maintenance and gives instant results with a shareable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Roofing Proficiency certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: NRCA Roofing Manual and technical guidance (National Roofing Contractors Association); International Residential Code Chapter 9: Roof Assemblies (International Code Council); Asphalt shingle installation and ventilation resources (Asphalt Roofing Manufacturers Association); 29 CFR 1926.502 Fall protection systems criteria and practices (OSHA); Fall protection (OSHA); Stairways and ladders: a guide to OSHA rules (OSHA). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Roof Systems and Materials (Steep-slope, Low-slope and Materials); Installation, Flashing and Ventilation (Underlayment, Flashing and Ventilation); Roof Safety and Fall Protection (Fall protection, Ladders and Hazards); Inspection, Leaks and Maintenance (Inspection, Leaks and Repairs). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Roofer or roofing installer, Roofing foreman, Roofing estimator, Building inspector and Property maintenance technician. It suits anyone who wants a quick, verifiable way to show Roofing knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

Roofing certifications cover roof systems and materials, installation methods, flashing, ventilation, safety and fall protection, and inspection and repair. Manufacturer programmes and national bodies such as NRCA in the US offer credentials that check these skills.

Under the International Residential Code, asphalt shingles need a slope of at least 2 units vertical in 12 horizontal. Slopes from 2:12 up to 4:12 require double underlayment.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.