Everything You Need to Know About Our Expandable and Foldable Container Houses

Are you looking for a durable, customizable, and easy-to-install expandable container house? This comprehensive FAQ covers everything you need to know before purchasing. We answer common questions about the waterproofing, insulation, materials, structure, and load capacity of our homes.

You’ll also learn how to connect electricity and plumbing, explore customization options, and understand installation, transportation, and international compliance.

Curious about installing solar panels, adding rolling shutter doors, or improving insulation for cold climates? We’ve got you covered! Whether you are a business buyer, distributor, or individual customer, this guide ensures you have all the necessary details to make an informed decision.

For more information or custom requests, contact us today! Xiamen Sunfine Architect & Construction Co., Ltd.

1. Structure & Materials

Waterproofing & Sealing

Q: How is your expandable container house waterproofed?

Our expandable container houses are designed with structural waterproofing, featuring sealed joints to prevent leaks. Additionally, we provide waterproof tape and sealing components for added protection. For enhanced waterproofing, we recommend installing roof drainage systems.

Q: Will the house have any leakage issues?

Before shipping, every unit undergoes rigorous water and electrical testing to ensure plumbing integrity. If you experience any issues on-site, contact us for troubleshooting and solutions.

Steel & Structural Components

Q: What type of steel is used in the structure?

We use Q235B light steel, ensuring durability and stability. For heavy steel requirements, customization is available, subject to a minimum order quantity.

Wall Panels & Roof

Q: How well is the house insulated? Can it be customized?

Yes! Insulation can be fully customized. Our standard walls feature 75mm EPS panels with an R-value of 1.83. Other materials and thicknesses are available upon request.

Q: What is the standard wall panel thickness?

Exterior walls: 75mm

Interior walls & roof panels: 50mm

Q: What materials are available for wall panels?

Our default EPS sandwich panels provide excellent thermal insulation and a smooth finish. Customers may also opt for rock wool panels (fire-resistant), PU panels, or PIR panels.

Q: What is the load-bearing capacity of the roof and floor?

Roof load: 200kg/㎡

Floor load: 200kg/㎡

(Values based on experience; no official test certificates available.)

Q: Can the roof panel thickness be adjusted?

Yes! The default roof panel thickness is 50mm, but 75mm panels can be selected for better insulation.

Q: What are the available widths for EPS wall panels?

Two standard widths: 950mm and 1150mm.

Q: What exterior decoration materials are commonly used?

The most common option is metal carved panels, but some customers prefer PVC decorative panels for better rust resistance.

Q: What is the difference between fiber cement board and magnesium oxide board for flooring?

Fiber cement board: Better waterproofing, harder but prone to cracking.

Magnesium oxide board: More flexible, less likely to crack, but has a shorter lifespan.

2. Electrical System

Wiring Standards & Installation

Q: Do your electrical wires comply with international standards?

Yes! We provide region-specific compliant wiring and offer custom circuit breakers based on customer requirements.

Q: How do I connect power and water to my expandable container house?

Our homes come pre-installed with wiring and plumbing. Simply connect your local power supply to the main inlet socket at the back of the house and link the bathroom plumbing to your water source and drainage system.

3. Plumbing & Drainage

Q: What are the standard pipe sizes? Can they be customized?

Sewage pipe: DN110

Wastewater pipe: DN50

Hot & cold water pipes: DN20

(Hot & cold water pipes are PPR, while sewage and wastewater pipes are PVC.)

Customization options are available upon request.

4. Customization & Installation

Customization Options

Q: What is the internal height of the house? Can it be increased?

The standard interior height is 2200mm. We offer custom height options, but taller units require 40OT or 40FR container transport, which increases shipping costs.

Q: What customization options are available?

We offer fully customizable expandable container houses, including wall panels, roofing, doors, windows, electrical systems, and layout modifications.

Q: Can I add a rolling shutter door? What type of entrance door is recommended?

Yes! We recommend thermal break aluminum swing doors or sliding doors for optimal insulation.

Installation & Transportation

Q: How do I install the foldable house?

We provide detailed installation manuals and instructional videos to guide you through the setup process.

Q: Does the house comply with New Zealand and Australian building standards?

Yes! Our electrical systems meet local regulations, and all materials are asbestos-free. We also offer customized water pipes, doors, windows, and structural materials to meet specific regional requirements.

Q: Can solar panels be installed on the foldable house? Any considerations?

Yes! Solar panels are fully compatible. For a 20ft expandable container house, we recommend a 5KW solar system. However, in some regions like the U.S. and Taiwan, anti-dumping tariffs may apply, and batteries must be shipped separately as hazardous goods.

5. Insulation & Thermal Performance

Q: How can I improve insulation for cold climates?

For colder environments, we recommend upgrading to PU wall panels and adding graphene underfloor heating for superior warmth retention.

6. Customs & Documentation

Q: What is the HS code for an expandable container house?

The standard HS code is 9406900090.

Q: What is the customs declaration name for international shipping?

Prefabricated Container House

Prefab House

Movable House

Q: What is the Chinese invoicing name?

彩钢活动房 (Steel Panel Movable House)

Contact Us

Looking for a reliable manufacturer of expandable container houses and foldable houses? At Xiamen Sunfine Architect & Construction Co., Ltd., we offer customized solutions, high-quality materials, and full certification compliance.

Contact us today for quotes and details!

Email: sfmodular@sfmodular.com
Tel：+8613696962201