Precautions for Contracting Iron Sheet Insulation Engineering

Precautions for Contracting Iron Sheet Insulation Engineering

1、 Precautions for pre order acceptance and contract negotiation

1. Clearly identify the scope of construction

   Clarify whether pipelines, equipment, tanks, elbows, valves, flanges, brackets, and wall penetrations are included; Many parties only consider direct management, and the price of irregular parts will be increased later and written into the contract in advance.
2. Clearly define the material and thickness

   Thickness of iron/aluminum sheet (0.5, 0.6, 0.8, 1.0mm), galvanized iron sheet or aluminum magnesium alloy, insulation material model (rock wool, aluminum silicate, rubber, polyurethane), density, thickness, to avoid material theft, material reduction and peeling in the later stage.
3. The pricing method is fixed

   distinguish:Per meter, per square meter, lump sum price, hourly rate, and separate billing for irregular shapes；

   Elbows, tees, flanges, valves, high-altitude operations, nighttime construction, rainy season construction, and anti-corrosion and rust removal are all separately marked with markup standards.
4. Construction period and rewards and punishments

   Agree on the start and completion time, delay fines, rush fees, and compensation for work stoppage and waiting for materials, to avoid the party A unreasonably delaying the construction period and arbitrarily adding work without adding money.
5. The payment method is of utmost importance

• The proportion of advance payment, progress payment, completion acceptance payment, and quality guarantee deposit;

• Eliminate settling accounts after full completion and try to settle as much as possibleMonthly settlement and segmented settlement；

• Clearly state the duration of the warranty period, the scope of the warranty, and whether there is a warranty for human damage.

6. Division of Safety Responsibilities

   High altitude, hot work, confined space, electrical safety, accident insurance, work-related injury liability, and Party A's on-site management responsibility are all clearly stated, and Party A is fully responsible for avoiding accidents.

2、 On site investigation&quotation to avoid pitfalls

1. Advance on-site inspection: additional fees will be charged for factors such as floor height, high altitude, narrow site, outdoor exposure, corrosive environment, low temperature in winter, and construction during rainy season.

2. Checking pipeline temperature: High temperature pipelines and low-temperature insulation pipelines use different materials and have different costs.

3. Grassroots situation: Does the pipeline need rust removal, painting, removal of old insulation, and garbage disposal,Demolition of old insulation must be quoted separately.

4. Transportation and Upstairs: The costs for material handling, vertical transportation, and long-distance transportation should be negotiated in advance.

3、 Material procurement and control

1. Material quality matching contract, do not use low-priced inferior leather, which is prone to rust, warping, cracking, and may result in losses for later repairs.

2. All rivets, straps, buckles, and sealants are usedstainless steel materialTo prevent rust and rework in the later stage.

3. Insulation materials must not be damp or exposed to rain. Moisture affected cotton will pulverize and peel off after installation, which will cause inconvenience in after-sales service.

4. Take photos of the materials entering the site for record keeping, to prevent Party A from using "unqualified materials" to suppress prices and deduct payments.

Precautions for Contracting Iron Sheet Insulation Engineering