Quality Control in Construction Explained

Difference Between Quality Control and Quality Assurance in Construction

Quality Control (QC) and Quality Assurance (QA) are crucial aspects of construction management, but they serve different purposes.

Quality control is a reactive process that involves inspecting and testing products at various stages of production to detect and correct defects. It is more focused on identifying and addressing issues after they have occurred.

On the other hand, quality assurance is more proactive and focuses on preventing defects from occurring. It involves setting up processes and systems to ensure that products or services are consistently delivered at a high standard.

The Basics of Construction Quality Control

Several terms and concepts are essential to understanding quality control in construction. Some of these include:

Specifications

Specifications are vital to maintaining quality control in construction. They provide clear guidelines for each construction phase, ensuring everyone understands the desired outcomes. Usually created in the pre-development phase, these specifications form the foundation for the entire construction project.

Submittals

The submittal process involves subcontractors sending in shop drawings, material samples, and other relevant documents. These submissions provide detailed information about the proposed materials and methods for the construction project.

Once received, the general contractor reviews them and then forwards them to the architect and engineer for approval. It ensures the proposed materials and methods match the project’s design specifications.

Inspections

Regular construction site inspections are conducted to check if work is done according to the specifications and plans. Inspections can be carried out by a team of quality control inspectors, architects, engineers, or building officials. These checks ensure any defects or deviations from the plans are identified and remedied before they become more significant issues.

Communication

Communication is crucial in quality control as it ensures everyone involved in the construction project is on the same page. It includes contractors, subcontractors, architects, engineers, and other stakeholders. Clear communication channels help prevent misunderstandings and ensure that issues are addressed promptly.

Roles And Responsibilities in Quality Control

Who is responsible for quality control in construction? The answer is that everyone involved has a role to play. Some of the key players and their responsibilities include:

• Owners – Responsible for setting quality standards and ensuring they are met by all parties involved in the project.
• Designers – They create detailed plans and specifications that serve as the basis for quality control.
• General contractors – Responsible for overseeing the entire construction project and ensuring all work is done to meet the specified quality standards.
• Specialty contractors and suppliers – Responsible for providing quality products and services according to specifications.
• Inspectors – They’re crucial in checking and testing materials and workmanship to ensure they meet the specified quality standards.
• Construction manager – Responsible for managing quality control processes and ensuring they are correctly implemented throughout the construction project.
• Project manager – Works closely with the construction manager and other team members to ensure that quality control processes are followed and any issues are addressed promptly.
• Superintendent – Oversees the construction activities and ensures work is done according to specifications and quality standards.

How to Ensure Quality Control in Construction

Quality control in construction can be achieved through various measures, including:

• Begin with the right team members – Hiring the right team members is crucial to achieving quality control in construction. Look for experienced and reputable contractors, subcontractors, and suppliers with a track record of delivering high-quality work.
• Clearly define specifications and expectations – Clear requirements and expectations are crucial to maintaining quality control in construction. Ensure everyone involved understands what is expected of them, including materials, workmanship standards, and project timelines.
• Set supplier and vendor expectations from the start—It’s crucial to establish quality expectations with suppliers and vendors before the project begins. This includes specifying quality standards for materials, delivery schedules, and other relevant details.
• Choose suitable materials – Quality materials are essential to achieving quality control in construction. Ensure that all materials meet the specified standards and are delivered on time.
• Ensure safety and compliance – Safety is crucial in maintaining quality control. Ensure all workers follow safety protocols and comply with building codes and regulations.
• Double-check and verify – Before signing off on any work, verify that it meets the specifications and quality standards. It can help catch any errors or defects that may have been missed.
• Safeguard finished work – Once construction is complete, thoroughly check and test the final product to ensure it meets all specifications and quality standards. It includes checking for any defects or issues that may have arisen during construction.
• Conduct an audit and testing – Regular audits and testing can help identify any issues that may have been missed during construction. It enables prompt corrective action to maintain quality control.
• Invest in technology – Construction quality control software and tools are available to help streamline processes, improve communication, and reduce errors. Consider investing in these to enhance quality control efforts further.