Alabama Remodeling, Alteration, and Maintenance Contractor

Alabama Remodeling, Alteration & Maintenance Contractor Exam | 6 questions, 10% of exam

Key Concepts

Employer Responsibility for Accident Prevention (§1926.20)

• The employer must initiate and maintain safety programs necessary to comply with 29 CFR 1926.
• Job sites, materials, and equipment must be inspected frequently and regularly by competent persons designated by the employer.
• Unsafe machinery or equipment must be tagged, locked out (controls rendered inoperable), or physically removed from operation — all three are acceptable methods.
• Only employees qualified by training or experience may operate equipment and machinery.

Prime Contractor vs. Subcontractor Responsibility

• The prime contractor retains overall responsibility for OSHA compliance for all work under the contract — this cannot be transferred away.
• A prime contractor assumes all employer obligations under the standards whether or not work is subcontracted.
• When a subcontractor takes on part of the work, they assume responsibility for their portion.
• Where both prime and sub share responsibility → joint responsibility → both are subject to OSHA enforcement.…

Key Concepts

Window Code Requirements (Building Code Minimums) - Total window glass area in any room must be no less than 8% of the floor area to ensure adequate natural light. - Total openable window area for ventilation must be no less than 4% of the floor area, unless mechanical air conditioning and ventilation are provided. - Bathrooms require no less than 3 sq. ft. of glazing, unless the room is ventilated by a fan.

Egress Window Requirements Every bedroom must have at least one window (or exterior door) suitable for emergency escape with all of the following: - Sill height: no more than 44" above the floor - Minimum opening height: 24" - Minimum opening width: 20" - Minimum unblocked open area: 5.7 sq. ft. (grade-floor openings: 5.0 sq. ft.)

⚠️ A window with only the minimum height (24") and minimum width (20") yields only 3.3 sq. ft. — this does NOT meet code. A window at minimum height (24") and 48" wide yields 8 sq. ft. — acceptable.

Alabama Remodeling, Alteration & Maintenance Contractor Exam

Key Concepts

Wood Classification

• Hardwoods come from deciduous (broad-leaved) trees that shed leaves seasonally (oak, walnut, maple, birch, cherry, ash, mahogany).
• Softwoods come from coniferous (cone-bearing) trees with needle-like leaves (pine, fir, hemlock, cedar, redwood). Softwoods dominate structural framing.
• Important: The terms hardwood/softwood do NOT indicate actual hardness. Balsa (a hardwood) is softer than many softwoods.

Tree Anatomy Relevant to Lumber Quality

• Cambium: Thin living layer just inside bark; produces new sapwood and bark.
• Sapwood: Outer, living wood; transports water and nutrients.
• Heartwood: Inner, non-living wood; provides strength and rigidity — generally more durable and decay-resistant than sapwood.
• Annual (growth) rings: One ring per year; wide rings = good growth conditions; narrow rings = drought or stress. Visible on end grain; used to assess lumber quality.

Key Concepts

Stairway Components Know every part by name and function: - Stringer – The structural diagonal member that supports treads and risers. Can be cut (open) or solid (closed/cleat). - Treads – Horizontal surfaces you step on. - Risers – Vertical boards between treads. - Balusters – Vertical spindles supporting the handrail. - Skirtboard – Finish trim board running along the side of a stairway. - Winders – Pie-shaped treads used when a stairway changes direction. - Stairwell (well opening) – The vertical shaft framed to house the stairway; requires structural reinforcement because it interrupts floor joist spacing. - Headroom – Vertical clearance above treads; regulated by building code. - Kick plate – Protective plate at the base of a riser or door.

Types of Stairways - Main (finish) stairway – Primary stairway connecting main living levels; often a focal architectural feature. - Service stairway – Typically leads to basement; may have less stringent finish requirements. - Curved stairways – Often shop-built and delivered to site for installation.

Key Concepts

What Siding Is and Does Siding is the exterior wall covering of a house. Its primary purpose is to shed rain and protect the structural portions of walls. Installation typically begins after windows, doors, and roofing are in place.

Common Siding Materials - Solid wood, vinyl, plywood, steel, aluminum, stucco, fiber cement - Many are available prefinished (no painting/staining required after installation) - The IRC refers to siding as "exterior wall covering" providing weather resistance to the "exterior wall envelope"

Wood Siding Types (from Carpentry and Building Construction, Ch. 23) | Type | Key Feature | |------|-------------| | Bevel (Plain/Colonial) | Min. 1" overlap; 10d siding nails; smooth or sawn face exposed | | Bungalow | Thicker and wider than bevel; 6d siding nails; min. 1" overlap; horizontal only | | Dolly Varden | Thicker than bevel siding; rabbeted edge | | Panel (Board & Batten) | Typically 4'×8' or 4'×9'; may include decorative grooves; installed vertically or horizontally |

Key Concepts

What Drywall Is Drywall (also called gypsum wallboard, gypsum board) consists of a noncombustible gypsum core sandwiched between paper layers. The front uses smooth face paper; the back uses rougher liner paper. It is dimensionally stable, fire-resistant, and serves as a substrate for paint, wallpaper, or paneling.

Standard Sizes - Standard width: 4 feet - Standard length: 8 feet (also available in 9', 10', 12', and 14') - Longer panels speed installation but are harder to handle

Types of Drywall - Standard drywall – General interior walls and ceilings - Fire-code drywall (Type X and Type C) – Required in fire-rated assemblies; contains special core additives that slow burn-through - Moisture-resistant / Green board – Permitted in high-humidity areas; no longer allowed (per 2006 IRC) in shower stalls or tub/shower surrounds except on ceiling surfaces - Glass-mat gypsum board (paperless drywall) – Front and back covered with thin fiberglass instead of paper; acceptable for wet areas where green board is prohibited - Cement board / fiber-cement backer board – Approved backing for…

Reference: 29 CFR 1926 Subpart Q (§§ 1926.700–1926.703) 7 questions | 12% of exam

Key Concepts

Definitions (§ 1926.700)

Know these cold — exam questions frequently test whether you can identify the correct term:

• Formwork – The entire system of support for freshly placed/partially cured concrete: mold/sheeting, shores, reshores, hardware, and braces. Not just the form itself.
• Reshoring – Shoring placed after original forms/shores are removed to support partially cured concrete.
• Shore – A supporting member that resists compressive force from a load.
• Precast concrete – Formed, cast, and cured prior to final placement in the structure.
• Lift slab – Slabs cast at ground level and jacked vertically into position.
• Vertical slip forms – Forms jacked vertically during concrete placement.
• Limited access zone – Demarcated area alongside a masonry wall under construction to restrict employee access.

Key Concepts

Scope (29 CFR 1926.700): Subpart Q covers all construction employees exposed to hazards from concrete and masonry operations. Both Part 1910 and Part 1926 standards may apply simultaneously.

Critical Definitions to Know: - Limited Access Zone: An area alongside a masonry wall under construction, clearly demarcated to limit employee access. This is a masonry-specific requirement. - Formwork: The total system of support — not just the mold, but also shores, reshores, braces, hardware, and all supporting members. - Shore: A supporting member that resists a compressive force imposed by a load. - Reshoring: Placing shoring equipment as original forms and shores are removed, to support partially cured concrete.

Limited Access Zone Requirements (§ 1926.706): A limited access zone must be established whenever a masonry wall is being constructed. The zone must: - Equal the height of the wall to be constructed plus 4 feet on the side of the wall that will not be scaffolded - Run the entire length of the wall - Be restricted to only employees actively engaged in…