Container Renovation House with Slanted Roof

The design of a slanted roof for a container-renovated house requires comprehensive consideration of structural safety, functional layout, and aesthetics. Through reasonable planning, efficient space utilization and an enhanced living experience can be achieved. The following elaborates on design points, case references, and construction considerations from three aspects:

I. Design Points for Slanted-Roof Container Houses

1. Structural Reinforcement and Foundation Treatment
   The slanted roof design must ensure the stability of the main container structure, especially in uneven terrain areas (such as the Puerto Rico project in the case study). This involves pouring a concrete, steel, and wood composite foundation and securing the container with a frame structure. The recommended slope for the slanted roof is between 15° and 30°, which facilitates drainage while avoiding a sense of spatial oppression. If double-layer containers are stacked, the connection points should be reinforced through welding or bolts, and diagonal braces should be added to enhance wind resistance.

2. Space Utilization and Functional Zoning
   The area beneath the slanted roof often forms irregular triangular spaces, which can be optimized through custom furniture or split-level structures. For example, in a top-floor duplex case, the slanted roof area is planned as a bedroom or storage space, utilizing the height advantage to design built-in wardrobes or bookshelves. The Danish container residence introduces natural light through large windows, reducing the oppressive feeling of the slanted roof. If space permits, a loft or terrace (such as the observation terrace in the Puerto Rico project) can be added to expand functional scenarios.

3. Roofing Materials and Waterproofing
   The slanted roof requires lightweight and weather-resistant materials, such as color-coated steel sheets, sunlight boards, or asphalt shingles. The Suzhou Baiyi project in the case study combines glass curtain walls with color-coated steel sheets for both lighting and heat insulation. The Danish project enhances indoor transparency through a transparent skylight. The waterproofing layer must cover the entire roof surface, with special attention to sealing joints with waterproof glue or metal strips to prevent leakage.

II. Typical Case References

1. Puerto Rico Container B&B
   A single-story 20-foot container is built on a concrete foundation, with the slanted roof and terrace forming an observation space. The interior features all-white walls and wooden floors, with large windows optimizing lighting. The bathroom is tiled in white and equipped with a shower system, reflecting a balance of functionality and aesthetics.

2. Danish Container Residence
   Nine containers are combined to form a family residence, retaining corrugated metal interior walls and ceilings. Decorative lines and large windows are used to soften the industrial feel. The slanted roof area is planned as a bedroom, with built-in storage designed to utilize the height. Solar panels are installed on the roof to address electricity needs, reflecting a sustainable design concept.

III. Construction Considerations

1. Compliance Check
   Before renovation, it is necessary to confirm local building codes' requirements for container houses, including height restrictions, fire ratings, and usage limitations (such as whether residential use is permitted).
2. Plumbing and Electrical Layout
   The slanted roof design must reserve pipe penetration points in the walls to avoid compromising structural integrity. The Puerto Rico project in the case study ensures cold and hot water supply in the kitchen and bathroom through concealed piping design.
3. Ventilation and Heat Insulation
   The slanted roof is prone to heat accumulation, necessitating the addition of vents or exhaust fans and the laying of heat-insulating materials (such as rock wool boards). The Danish project optimizes air circulation by connecting lifting rods to the four corners of the roof.