In the building waterproofing project in 2024, the 4mm thick SBS modified asphalt waterproofing membrane is widely used in the waterproofing treatment of roofs, basements, bridges and other structures due to its excellent waterproof performance and adaptability. The following is a detailed analysis of the cost of the waterproofing membrane and its construction process, so that the engineering contractor and investor can more accurately budget and control the cost of the waterproofing project.
1. Material costs:
1. Coiled material paving: 10 yuan/㎡
This fee covers the direct material costs of SBS modified asphalt waterproofing membrane, including procurement, transportation and storage of the membrane. Actual costs may fluctuate due to changes in coil specifications, brands, and market supply and demand.
2. Machinery Fee:
1. 4mm thick SBS modified asphalt waterproofing membrane: 40 yuan/㎡
Machinery costs mainly include the depreciation, maintenance and energy consumption costs of special tools and equipment used in the construction process. Taking into account the construction efficiency and the service life of the equipment, the adjustment is made by a factor of 1.25 times.
2. Base treatment agent (cold base oil): 0.93 yuan/㎡
Base treatment agents are used to enhance the adhesion between the waterproofing membrane and the base layer to ensure the integrity of the waterproofing layer. This part of the cost is calculated based on the amount of treatment agent used and the market price.
3. Management fee (5%): 2.55 yuan/㎡
Overhead expenses involve indirect costs such as project management, on-site coordination, quality control, etc. This is calculated as 5% of the total cost to cover the various expenses of project management.
4. Profit (10%): 5.09 yuan/㎡
Profit is a goal set by a contractor to maintain operations and generate revenue. This is calculated as 10% of the total cost to ensure that the contractor can get a reasonable return.
5. Quotation (9% tax included): 63.84 yuan/㎡
Considering all the above costs, including material costs, machinery costs, management fees and profits, plus 9% value-added tax, the tax-included quotation of 4mm thick SBS modified asphalt waterproofing membrane is 63.84 yuan/㎡. This quotation provides a comprehensive cost reference for project investment and construction.
In practice, the contractor should pay close attention to the market dynamics and reasonably adjust the quotation strategy to ensure the economic benefits and construction quality of the project. At the same time, considering the requirements of environmental protection and sustainable development, the selection of environmentally friendly materials and the optimization of construction plans are also effective means to reduce costs and improve competitiveness. In addition, strengthening the management of the construction site and reducing material waste and rework can also effectively control costs and improve the overall efficiency of the project.