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Modular additions are usually side and second-story additions to homes that are pre-fabricated at the facilities. General characteristics of a modular home apply. For a second-story modular addition the existing house should have a sound structure as modular rooms are 30%+ heavier than the same stick-built.
Modular homes are designed to be stronger than traditional homes by, for example, replacing nails with screws, adding glue to joints, and using 8–10% more lumber than conventional housing. [31] This is to help the modules maintain their structural integrity as they are transported on trucks to the construction site.
The latest officially released version of MasterFormat is the 2018 Edition, which uses the following Divisions: PROCUREMENT AND CONTRACTING REQUIREMENTS GROUP:
The National Building Code is the model building code that forms the basis for all of the provincial building codes. Some jurisdictions create their own code based on the National Building Code, other jurisdictions have adopted the National Building often with supplementary laws or regulations to the requirements in the National Building Code.
Pre-manufactured roof trusses come in a wide variety of styles. They are designed by the manufacturer for each specific building. Timber trusses also are built in a variety of styles using wood or metal joints. Heavy timber rafters typically spaced 240 cm (8 ft) to 370 cm (12 ft) apart are called principal rafters.
These types of modular enclosures can have load-bearing roofs to maximize space by stacking on top of one another. They can either be mounted on an existing roof, or constructed without a floor and lifted onto existing enclosures using a crane. [citation needed] Permanent Insulated Formwork. This formwork is assembled on site, usually out of ...
Plank framed truss was the name for roof trusses made with planks rather than timber roof trusses. In the 20th century, it was typical for carpenters to make their own trusses by nailing planks together with wood plates at the joints. Today similar trusses are manufactured to engineering standards and use truss connector plates.
Roof pitch is the steepness of a roof expressed as a ratio of inch(es) rise per horizontal foot (or their metric equivalent), or as the angle in degrees its surface deviates from the horizontal. A flat roof has a pitch of zero in either instance; all other roofs are pitched .
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