CONSTRUCTION IDEAS

Basic Steps in Starting a Building Project

When there is a plan to develop a new building, it is very necessary to have an idea about the start and the end of the building project. The flowchart below shows the construction flow from the start to the end of a building project.

Fig.1.Construction Flow in Building Construction( Image Courtesy: Quantumci)

There may be variations as every project is unique and follows different design and construction processes. In general, the basic steps involved in a building project are briefly explained.

• Planning
• Permits
• Preparation of Construction Site
• Foundation Construction
• Superstructure Construction
• Punch Lists
• Building Warranty Period

1. Planning

The planning in building construction involves three major steps:

Developing the Building Plan

Analyzing the Finance

Selecting the Construction Team

Once the site where the building project is indented to construct is chosen, the expertise of engineers and architects is taken to develop the site and the building plan. Sometimes, an appropriate site is selected after the building layout is prepared.

The building plan is developed based on the owner’s requirements and budget. Once the plan is in hand, the finance and total cost is estimated. The structural design details and the material estimates are prepared which help to derive project cost estimates. The cost calculated include:

• The material cost

• The construction cost

• The labor cost

• Miscellaneous cost

Construction Cost Estimates Based on the estimated cost, either a bidding process is performed or the project to handover over to a known contractor. The contractor and the owner must agree to a contract based on which the project is implemented. The contract mentions the completion period and necessary guides, and exclusions to remove claims. Read More: Types of Drawings used in Building Construction

2. Permits and Insurance in Building Construction

Before starting a building construction, the owner must make sure that one has the necessary permits taken to start the construction. Permits and insurance are obtained from different sources in cities and states. construction work conducted without permits results in project delay or project demolition or huge fines. Possessing insurance for the required parties helps to save the owner and the contractor.

3. Site Preparation

From here, the actual construction process starts. Based on the site and building plan, necessary excavations, leveling, and filling can be undergone to prepare the site. The necessary excavation for utilities, power, water and sanitation lines, and temporary storage facilities are prepared. Mostly the works needed to set up the utilities are prepared.

This is followed by an inspection from government officials. Read More: Steps in Preparing Site for Construction Projects -Soil Report, and Excavation Inspections are performed at different stages on structural, building codes, the utilities, HVAC, electrical works, etc. After the completion of the whole project, a final inspection is performed.

4. Foundation / Substructure Construction

Building structures are generally constructed on concrete foundations. Based on the soil type and water table level of the area, the foundation chosen can vary. If necessary, soil testing is performed to check the bearing capacity. Shallow foundations are required for low-rise buildings.

For high-rise buildings, a pile foundation is employed. Once the foundation is selected, the soil is excavated to construct the foundation. It is performed based on the foundation layout. Formworks are placed in the foundation trenches and reinforcement is placed based on the foundation detailing design prepared in the planning stage.

The reinforcement works performed by the contractor are periodically checked by the engineer in charge. Read More: Construction of Foundation - Depth, Width, Layout, and Excavation The concrete mix of the required proportion is poured into formwork and is cured to form the finished foundation.

5. Superstructure Construction

The superstructure is constructed once the substructure is complete. Generally, a framed structure is developed which is later finished with masonry walls. Adequate windows and exterior doors are placed based on the building plan. Other works coming under this section are

Construction of roofs or siding

Installation of heating, ventilation, and air conditioning

Providing adequate electric and water lines connection line.

Provide insulation works as required to protect from lightning

Provision of waterproofing to the walls.

Plastering and finishing the walls and surfaces

Flooring works

Exterior and Interior Painting

6. Punch List

Once the project is complete, the contractor inspects the whole work one by one and makes a punch list. Those structural units or areas that were not constructed properly or are below the quality level are listed in the punch list. This is later corrected by the contractor in charge.

7. Warranty Period

Once the project is complete and handover to the owner, the contractor specifies a warranty period. Within this period, any defects found in the building constructed must be fixed and replaced by the contractor in charge. The warranty for materials and appliances is obtained from manufacturers and suppliers.