1. About the RBQ 4.1 contractor licence exam

The RBQ sub-category 4.1 exam is the theoretical examination administered by the Régie du bâtiment du Québec for candidates seeking to act as qualified representative (répondant) for a contractor licence covering structural masonry and exterior masonry counter-walls. The licence also authorizes the work of sub-category 4.2 (Annex III), plus similar or related construction work — and notably covers the construction of masonry chimneys and open fireplaces.

The exam is offered in French and English in multiple-choice format, lasts 3 hours, and the passing grade is 60%. It is built around four official modules covering masonry concepts, the regulatory framework, plans and specifications, and the standards for executing masonry work — from foundation walls through above-ground structures, counter-walls, and chimneys.

2. Exam structure at a glance

The RBQ does not publish a percentage weighting per module for this licence. By content volume, Module 4 dominates with 68 skill statements — nearly 70% of the exam content. EC 9 alone (above-ground masonry execution) carries 29 skill statements — the largest single competency element of any RBQ 4.x licence. The Profil de compétences cross-references National Building Code Part 9 articles directly by number throughout Module 4: 9.4.3, 9.15.x, 9.20.x (multiple), 9.21.x, 9.22.x — the candidate is expected to know what each article says.

3. Detailed competency elements

Module 1 — Definitions and types of structures

• EC 1 — Masonry-structure notions and terms (7 skill statements): live load, dead load, bearing area; allowable deflection ratios (L/240, L/360, L/420); anchor, mortar, lintel, creep; laterally supported vs. unsupported foundation walls (NBC 9.15.4.2); lime characteristics for mortar (NBC 9.20.3.1); the five mortar types M, N, S, O, R (CSA classification — uses and properties); mortar quality control on site (homogeneity, wind drying, temperature).
• EC 2 — Load concepts (3 skill statements): snow, wind, seismic loads; lateral loads (causes and consequences); concentrated vs. uniformly distributed loads.
• EC 3 — Structure characteristics and components (4 skill statements): structural elements and their functions; stability assemblies; bracing (contreventements); lateral-stability components for masonry structures.

Module 2 — Legislative, normative and regulatory framework

• EC 4 — Codes and standards for masonry-structure work (5 skill statements): applying parts and sections of the Quebec Construction Code Chapter I — Building 1995; the role of the Canadian Standards Association (CSA); identifying the CSA and other standards (the eight CSA A-series masonry standards); scope of codes and standards by material and building type; relationship between masonry-structure standards and the Quebec Construction Code Chapter I.

Module 3 — Plans and specifications

• EC 5 — Reading drawings and plans (9 skill statements): locating elements on a plan; masonry symbols; dimensions and annotations; sections and details; general notes and tables; counter-wall details; quantity take-off (métré); shop drawings.
• EC 6 — Reading specification divisions (3 skill statements): divisions and sections for structural elements (17-division 1995 system referenced to the new 49-division 2004 system); specifications for structural masonry and exterior counter-walls; specifications for masonry chimneys and open fireplaces.

Module 4 — Standards and execution of work

• EC 7 — Planning and organizing (7 skill statements): scope boundaries communicated to the general contractor; logical execution sequence; elements supplied by other disciplines but installed by 4.1; interface coordination; project characteristics requiring plans and specs; plan-modification process; climate impact on masonry work.
• EC 8 — Foundation execution (10 skill statements): wall thickness for unsupported height ≤ 2.5 m (NBC 9.15.4.1); footing width vs. block-type compatibility; anchoring importance; walls supporting joists/beams/pilasters (NBC 9.15.5); pilaster-foundation use limits (NBC 9.15.2.4); height above grade (NBC 9.15.4.3); upper-wall reduction (NBC 9.15.4.4); rebar cover in foundation walls; concrete placement supervision; air cure to avoid cracking.
• EC 9 — Above-ground masonry execution (29 skill statements — largest single EC): material storage and protection (un-soiled, dry lime, untouched mortar sand); mortar precautions per NBC 9.20.14; mortar/grout dosages per NBC 9.20.3.2; load-bearing masonry quality; arch and vault templates; allowable deflection per NBC 9.4.3; concrete block compressive strength per NBC 9.20.2.7; lintels per NBC 9.20.5.2; allowable lintel span for veneer support; non-reinforced masonry wall height/thickness per NBC 9.20.6; cavity wall construction methods; counter-wall construction; sills and lintels in veneer walls; load-bearing wall details; mortar joint characteristics per NBC 9.20.4; penetration rules; bonding and fastening per NBC 9.20.9; lateral support per NBC 9.20.10; roof/floor/wall anchorage per NBC 9.20.11; corbelling per NBC 9.20.12; building tightness per NBC 9.20.13; reinforced masonry per NBC 9.20.15; reinforcement types/uses/placement; corrosion prevention per NBC 9.20.16 (galvanizing); repointing existing facades (mortar type, cleaning, joint type); restoration of masonry buildings; natural stone counter-wall execution; building tightness installation; masonry surface protection.
• EC 10 — Chimneys and open fireplaces (13 skill statements): chimney wall characteristics under 12 m (NBC 9.21.4.8); fireplace wall characteristics (NBC 9.22.3); circular flue duct diameter and rectangular flue duct sections (NBC 9.21.2.5); clearances for combustible materials (NBC 9.21.5 and 9.22.9); chimney construction methods (under and over 12 m); open fireplace construction methods; flue tile wall and joint sealing; flue liner requirements per NBC 9.21.3 and 9.22.2 (refractory brick, fireclay); flue tile mortar, placement, and extension; bracing exemptions per NBC 9.21.4.5; chimney crown requirements per NBC 9.21.4.6; combustion chamber per NBC 9.22.5; damper and throat per NBC 9.22.6 and 9.22.7.
• EC 11 — Quality control (5 skill statements): structural quality-control means; tests and trials on materials; quality-control responsibility allocation; material quality at reception and storage; problem-solving for execution issues.
• EC 12 — Health and safety (4 skill statements): scaffolding selection by applied loads (bricks and blocks) per S-2.1 r.4 art. 3.9; public protection from falling masonry; fall-arrest devices per S-2.1 r.4 art. 2.9, 2.10.12, 3.8; safe lifting equipment operation.

4. Documents at the exam — mixed-book format

Provided at the exam (open book — 2 documents)

• Code de construction (RLRQ, B-1.1, r.2) — Chapter I, Building 1995
• Code de sécurité pour les travaux de construction (RLRQ, S-2.1, r.4) — Safety code for construction work

Recommended reading only (closed book — 12 documents)

• Loi sur le bâtiment (RLRQ, B-1.1) — Building Act
• Code de sécurité (RLRQ, B-1.1, r.3) — Safety code (in-use buildings)
• Règlement sur la qualification professionnelle des entrepreneurs et des constructeurs-propriétaires (RLRQ, B-1.1, r.9)
• Loi sur la santé et la sécurité du travail (RLRQ, S-2.1) — Act respecting occupational health and safety
• CSA-A82.1 — Fired clay brick (solid clay or shale masonry units)
• CSA A165.1 — Concrete masonry units
• CSA A165.2 — Concrete brick
• CSA-A179 — Mortar and grout for unit masonry
• CSA A370 — Connectors for masonry
• CSA A371 — Masonry construction for buildings
• CSA/CAN3-A82.8 — Hollow clay brick
• CAN/CSA-A405 — Design and construction of masonry chimneys and fireplaces

Several Quebec documents are available free of charge on publicationsduquebec.gouv.qc.ca. The CSA standards are available from the CSA store.

5. Material provided at the exam

The calculator, ruler, paper and pencil needed for the exam are supplied on site. Only the documents and material handed out by the exam supervisor may be used during the session — personal copies, notes, electronic devices, and additional reference material are not allowed.

6. What makes the RBQ 4.1 exam different

The RBQ 4.1 contractor licence carries the heaviest CSA-standard load of any licence in the RBQ 2.x–4.x range. Eight CSA A-series masonry standards are in scope and all are closed-book. Each governs a specific aspect of masonry construction:

• A82.1 / A82.8 — fired clay brick (solid) and hollow clay brick — the unit-quality standards.
• A165.1 / A165.2 — concrete masonry units and concrete brick — the concrete-unit standards.
• A179 — mortar and grout for unit masonry — covers the five mortar types M, N, S, O, R that the exam tests directly (EC 1.6).
• A370 — connectors (ties, anchors) for masonry — the standard for the metal connectors that hold a veneer to its backup wall.
• A371 — masonry construction for buildings — the workmanship standard.
• A405 — design and construction of masonry chimneys and fireplaces — required because this licence covers chimneys and fireplaces (EC 10, 13 skill statements).

Module 4 dominates the exam at 68 skill statements. EC 9 alone (above-ground masonry execution) carries 29 skill statements — the largest single competency element across any RBQ 4.x licence. It covers load-bearing masonry, cavity walls, counter-walls, mortar joints, lateral support, anchorage, corbelling, building tightness, reinforced masonry, corrosion prevention (galvanizing), repointing, restoration, and natural stone counter-walls. The Profil cites NBC Part 9.20 articles directly throughout: 9.20.2.7, 9.20.3.2, 9.20.4, 9.20.5.2, 9.20.6, 9.20.9, 9.20.10, 9.20.11, 9.20.12, 9.20.13, 9.20.14, 9.20.15, 9.20.16.

EC 10 (chimneys and fireplaces, 13 skill statements) is unique to this licence within the RBQ 4.x series. The NBC Part 9.21 (chimneys) and 9.22 (fireplaces) articles are referenced article-by-article: clearances, flue duct dimensions, liner requirements, flue tile mortar and placement, bracing rules, crowns, combustion chamber, dampers and throats. CSA A405 backs up these articles with detailed design provisions.

7. Recommended preparation strategy

1. Memorize the eight CSA masonry standards. A82.1 / A82.8 (clay brick), A165.1 / A165.2 (concrete units), A179 (mortar and grout — including the M-N-S-O-R mortar types), A370 (connectors), A371 (workmanship), A405 (chimneys and fireplaces). All eight are closed book — flashcards on key acceptance criteria, dimensions, and limits are the highest-density-per-study-hour content in the exam.
2. Master the mortar types. Mortar types M, N, S, O, R per CSA A179 are tested directly in EC 1.6. Know the use of each — Type M for heavy load-bearing in contact with earth, S for general load-bearing exterior work, N for non-load-bearing exterior, O for interior non-load-bearing, K for tuckpointing. Memorize the cement-lime-sand proportions.
3. Anchor preparation around Module 4 (68 skill statements). Foundations (EC 8, 10 statements), above-ground (EC 9, 29 statements), chimneys/fireplaces (EC 10, 13 statements), quality (EC 11, 5), safety (EC 12, 4). Walk through every NBC Part 9 article the Profil cites — 9.15.x for foundations, 9.20.x for above-ground masonry, 9.21.x for chimneys, 9.22.x for fireplaces.
4. Drill NBC Part 9.20 article-by-article. 9.20.2.7 (concrete block compressive strength), 9.20.3.2 (mortar/grout dosage), 9.20.4 (mortar joints), 9.20.5.2 (lintels), 9.20.6 (wall height/thickness), 9.20.9 (bonding/fastening), 9.20.10 (lateral support), 9.20.11 (anchorage), 9.20.12 (corbelling), 9.20.13 (building tightness), 9.20.14 (work precautions), 9.20.15 (reinforced masonry), 9.20.16 (corrosion prevention). The exam cross-references these by number.
5. Master chimney and fireplace construction (EC 10). NBC 9.21 and 9.22 in detail — flue duct sizing, clearances for combustibles, liner requirements (refractory brick, fireclay), chimney crowns, combustion chamber dimensions, damper and throat geometry. CSA A405 layers design provisions on top. This block is 13 skill statements — significant.
6. Cover the restoration content. Module 4 EC 9.25–9.27 covers repointing existing facades, masonry building restoration, and natural stone counter-walls. The mortar type and joint type for repointing existing work must match the original — this is common-sense practice that the exam expects you to articulate.
7. Master the scaffolding rules. Module 4 EC 12.1 references S-2.1 r.4 art. 3.9 (scaffolding). EC 12.3 references arts. 2.9, 2.10.12, 3.8 (fall protection). These are the open-book articles you'll have on the desk — practice locating them quickly.
8. Take at least two full mock exams under real conditions (3 hours, only the Quebec Construction Code Chapter I and S-2.1 r.4 on the desk, single sitting) before scheduling the real exam.
9. Review every wrong answer. The Prof-RBQ.ca platform shows the reasoning behind each correct answer — read every explanation, even on questions you got right.

8. Why Prof-RBQ.ca for the RBQ 4.1 exam

• Aligned with the official RBQ structure — content mapped one-to-one to the four modules and their 12 competency elements, with extra depth on Module 4 (68 skill statements) and the NBC Part 9 articles the Profil cites by number.
• Eight CSA masonry standards drilled — separate study tracks for A82.1, A82.8, A165.1, A165.2, A179, A370, A371, and A405, since all are closed book.
• Mortar type drills — focused content on the five mortar types (M, N, S, O, R) including cement-lime-sand proportions and use cases per CSA A179.
• Chimney and fireplace track — dedicated content for EC 10's 13 skill statements covering NBC 9.21, 9.22, and CSA A405.
• Closed-book training methodology — flashcards and spaced practice for the 12 closed-book documents, with separate navigation drills for the two open-book references (Quebec Construction Code Chapter I, S-2.1 r.4).
• Mock exams in RBQ format — multiple choice, 3-hour timing, 60% passing grade — so exam day feels familiar.
• Detailed answer explanations — every question, right or wrong, comes with a written rationale citing the underlying article, code, or standard.
• Bilingual — full course in English and French. The RBQ exam itself is offered in both languages.
• A free section is available so you can try the platform before committing.

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