ZEMCH 2015 - International Conference Proceedings | Page 341

Figure 4: Basic layout of housing and customization options
The product design was developed considering the wall panels modulation according the dimensions of the sheathing boards. Thus, the walls feature multiple dimensions of the sheathing
boards, which are applied in the vertical orientation (120 centimetres wide by 300 centimetres
high). This decision considered the concept of panels’ modulation, also compatible with the structural modulation (studs to each 60 centimetres). From this definition, the areas of the rooms were
restricted to the panels’ modulation. For composition and division of the house internal spaces
were considered the 60 centimetres modulation, according the land dimensions (7,30 x 20,55 meters) and the requirements of minimum front distance  (5 meters) and minimum lateral distance 
(1,5 meters) of the boundary wall.
Following this modulation, the spacing of the studs on centre (wood profiles with 38 x 89 centimetres nominal dimension) was a 60 centimetre due to the 120 centimetre board size. The finished panels were composed of a light wood frame with an OSB sheathing nailed to each side of
the framing, gypsum boards for interior finishing, and cementitious boards for exterior finishing.
All panels followed the boards’ dimensions with variations of 120 and 60 centimetres in width, and
fixed height of 300 centimetres. The standard board size of 300 centimetres was defined considering the ceiling height.
Indirect connections (metallic profiles) were proposed to avoid changes in modulation caused by
the sheathing of the corners and intersecting partitions of panels. These changes are caused by
the added width dimensions that increase the final size of the finishing boards.

Reducing waste in the construction of light wood frame low-income housing

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