Engineering Notes is where our engineers, project managers, and factory team share what we’ve learned from designing, manufacturing, shipping, and installing modular buildings. No marketing language—just practical experience, engineering decisions, and lessons from real projects.
How much wind can an expandable house withstand? How much snow load can its roof carry?In September 2024, ReachTop assessed an ordinary expandable house structure using finite element analysis under ASCE 7-16. The work covered wind loads, roof snow loads and seismic response, using a model with approximately 338,000 nodes and 336,000 elements, with an…
Container houses manufactured in China are also described as prefabricated, modular or portable buildings. This article covers purpose-built houses made with steel frames and building panels, including detachable, flat-pack, foldable and expandable systems. These are distinct from houses converted from used shipping containers.Two houses can look almost identical while using different steel sections and surface…
No sensible factory should complete a container house and then dismantle the walls to inspect the concealed work. The correct approach is to inspect and record each critical stage while the components are still visible. ReachTop creates a production record for every order. Photos and videos are taken at key manufacturing stages, especially before electrical…
The term capsule house in this guide refers to Apple Cabin houses, Space Capsule houses and other prefabricated buildings customized with a capsule-shaped exterior. It does not refer to capsule hotel sleeping pods. Five exterior materials are commonly offered for this type of prefabricated house: Embossed metal insulated panels Coated galvanized steel Aluminum composite panels…
The insulation performance of a prefab container house is not determined simply by whether the wall panel contains EPS, rock wool or polyurethane. It depends on the complete building envelope—including the walls, steel structure, roof, floor, doors, windows, panel joints and installation quality. A supplier may use a good insulation material and still produce a…
Installing a detachable container house is generally much easier than constructing a conventional building. Most components are manufactured and prepared in the factory, so the work on site is mainly mechanical assembly. For a small order, a crew with basic practical experience can usually understand the process after watching the installation video and reviewing the…
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