Red Seal Lather (ISM) study plan

Classify the main gypsum board product types (regular, moisture-resistant, fire-rated, abuse-resistant, exterior sheathing) and state one job condition that dictates each choice

Sequence a board installation from delivery through fastening, describing stacking, acclimation, and protection from moisture at each step

Calculate board, joint compound, tape, and fastener quantities for two sample room takeoffs, including 10 percent waste allowance

List the PPE and site housekeeping requirements that apply when cutting, lifting, and fastening board, and match each to the hazard it controls

Demonstrate correct fastener spacing, edge distance, and joint offset patterns for single-layer and double-layer board applications

Describe framing tolerance limits for stud spacing, alignment, and backing that must be verified before boarding

Explain how control joints, expansion joints, and penetration details are laid out and executed in large ceiling and wall areas

Identify the causes and prevention of joint cracking, fastener popping, and board sag in ceilings

Distinguish the levels of gypsum board finish and state the level required for tile, flat paint, and high-gloss applications

Outline the taping and finishing sequence from first coat through sanding, naming the tool and compound type used at each stage

Describe the layout and installation of a suspended ceiling grid, including hanger spacing, leveling, and border panel sizing

Explain the installation of furring, resilient channel, and direct-applied systems for walls and ceilings

Explain how vapour barrier and air barrier placement differs by climate and assembly type, and identify the consequences of reversing the order

Describe the installation of batt, board, and spray-applied insulation in wall and ceiling cavities, including where each is inappropriate

Detail the sealing of penetrations, laps, and transitions that make an air barrier continuous at floor, wall, and roof junctions

State the code-referenced fire and sound ratings that depend on insulation and barrier continuity in common assemblies

Describe three-coat and two-coat plaster application sequences, naming the mix, thickness, and curing requirements for each coat

Explain the installation of metal lath, gypsum lath, and rib lath, including fastener pattern and lap requirements

Outline stucco application over sheathed and masonry substrates, including control joints, weep screeds, and curing

Identify the causes of plaster and stucco defects such as crazing, bond failure, and efflorescence, and state the corrective action for each

Read a set of wall and ceiling drawings to extract stud spacing, board type, finish level, and fire rating for a given room

Locate and apply the code clauses governing fire separations, exit enclosure protection, and penetration firestopping in wall and ceiling assemblies

Interpret specification sections to resolve a conflict between a drawing note and a written specification

Build a job hazard analysis for a boarding and finishing task, listing controls in the hierarchy of control order

Match each tool to its task, including board lifts, screw guns, cutout tools, taping knives, and mixing equipment, and state the routine maintenance for each

Diagnose three common tool faults and describe the safe correction procedure for each

State the guard, inspection, and lockout requirements that apply to powered cutting and mixing equipment

Describe safe use and inspection of access equipment used in ceiling work, including ladders and rolling scaffolds

Complete a timed mixed-domain practice set and record the score by domain to identify remaining weak areas

Re-derive the key numbers from memory: fastener spacing, coat thicknesses, finish levels, and barrier placement by climate

Review every missed or guessed question and write the correct reasoning in your own words

Confirm exam-day logistics and rehearse a time-allocation approach for long scenario questions