SCE Saudi Building Code 4 — Questions and Answers
Question 1: SBC 302 (Structural - Concrete) specifies the minimum compressive strength for structural concrete exposed to sulphate-rich soil as:
- 35 MPa with a maximum w/c ratio of 0.45 (Correct answer)
- 20 MPa
- 15 MPa
- 50 MPa
Correct answer: 35 MPa with a maximum w/c ratio of 0.45
For moderate to severe sulphate exposure (common in Saudi Arabia), SBC requires minimum 35 MPa concrete with w/c ≤ 0.45 and Type V (sulphate-resistant) cement to ensure durability against chemical attack.
Question 2: SBC requires that all structural steel in Saudi Arabia be protected against:
- Corrosion through painting, galvanizing, or other approved coating systems (Correct answer)
- Only aesthetic degradation
- Theft only
- UV radiation only
Correct answer: Corrosion through painting, galvanizing, or other approved coating systems
Saudi Arabia's coastal humidity, inland sandstorms, and industrial environments require comprehensive corrosion protection for structural steel through hot-dip galvanizing, epoxy coatings, or other approved systems.
Question 3: What is the SBC requirement for waterproofing basements in Saudi Arabia?
- Comprehensive waterproofing membrane system with drainage, especially in areas with high water tables (Correct answer)
- Waterproofing is not required
- Only painting is required
- Only in coastal cities
Correct answer: Comprehensive waterproofing membrane system with drainage, especially in areas with high water tables
SBC requires proper waterproofing of below-grade construction, including membranes, drainage boards, and dewatering systems. Rising water tables in many Saudi cities make this critical for building longevity.
Question 4: SBC requirements for elevator installation in buildings include:
- Mandatory elevators in buildings over a specified number of stories, with fire service features for high-rises (Correct answer)
- Elevators are never required
- Only freight elevators are required
- Elevators are required only in hospitals
Correct answer: Mandatory elevators in buildings over a specified number of stories, with fire service features for high-rises
SBC requires elevators in buildings over certain heights, accessible elevators in public buildings, fire service (firefighter) elevators in high-rises, and specific shaft fire ratings and ventilation requirements.
Question 5: The SBC requirement for parking in Saudi buildings typically mandates:
- Minimum parking spaces based on building type, area, and occupancy with specific accessibility provisions (Correct answer)
- No minimum parking
- Only surface parking
- Parking only for commercial buildings
Correct answer: Minimum parking spaces based on building type, area, and occupancy with specific accessibility provisions
SBC and municipal regulations specify minimum parking ratios (e.g., 1 space per residential unit, 1 per 40m² for offices) with requirements for accessible spaces, dimensions, aisle widths, and ventilation for enclosed garages.
Question 6: SBC requires building envelope thermal performance testing using:
- U-value calculations and compliance with maximum allowable thermal transmittance values (Correct answer)
- No testing required
- Only visual inspection
- Only during winter months
Correct answer: U-value calculations and compliance with maximum allowable thermal transmittance values
SBC mandates that building envelope components (walls, roofs, windows) meet maximum U-value requirements through calculations or testing, ensuring thermal performance under Saudi Arabia's extreme heat conditions.
SCE Saudi Building Code 4
SBC 302 (Structural - Concrete) specifies the minimum compressive strength for structural concrete exposed to sulphate-rich soil as: