ZEMCH 2015 - International Conference Proceedings | Page 561

Concurrent with the design of alternatives for roofing, studies of facades were taken. This research
is still in early stages, but initial studies indicate the possibility of alternatives, providing a diversity
of types and volumetric solutions (Figure 15). The literature on LIH in Brazil often points repetition,
monotony and problems with regard the quality of architectural and urban design (Reis and Lay
2003, 2010). For sure the ability to customize the volume and the facades is a valid alternative to
face this issue.

Conclusions
This work focuses on the feasibility discussion of the integration of different requirements
throughout the design process. At this stage of research there are clear indications of the validity
of the assumption that the use of building prefabrication technology combined with a strategic
approach for product development based on mass customization can bring significant improvements in the quality of low-income housing production in the Brazilian context. The results described in this paper are partial, as they present an uncompleted design. As shown, the scenario
in which occurs the production of LIH in Brazil has some favorable conditions for the implementation of recent strategies developed in research and already applied in other contexts.
The complexity of the set of requirements for such a design requires a systematic approach that
cannot be focused on one or a few agents, requiring a multidisciplinary team. Due to the interaction of different disciplines, is fundamental the commitment of designers and other professionals
involved. The experience of this work indicates that despite the natural difficulties, the design
decisions taken in an integrated way and in a collaborative environment have consistency and reduce uncertainty. The use of tools for simulation, both spatially and thermal performance proved
to be useful.
Although partially applied in this work, the inferences obtained so far indicate good potential
for the adoption of Target Costing for companies operating in PMCMV, allowing greater control
over the constructive variables, aspects of constructability, productivity data and costs. (Granja et
al, 2011). In cases with budget constraints, Target Costing allows that the decisions can be taken
based on user needs and value delivered, maintaining cost control and ensuring compliance with
requirements. Also, the adoption of Mass customization strategy keeps the design focus on the
needs of customers.
The PMCMV features allow envision a growing development and application of new construction
techniques that lower the costs and increase execution speed through industrial processes. The
use of wood frame prefabricated panels is as a viable alternative from an economic standpoint
and performance as well as favorable to mass production and customization.
As future challenges, the following can be pointed out (1) the need to conduct f ull-scale physical
prototypes and (2) the submission of prototypes, preferably with different customized solutions,
to the use and evaluation by potential users. A collaborative environment and the construction
and consolidation of partnerships with public and private organizations are keys for that.

Acknowledgements
To the partner companies that provide technology (Tecverde Engineering, through the AINTEC
/ UEL) and material resources (LP Brazil); to Post Graduate Program in Architecture and Urban
Design (UEM-UEL); to Zero Energy Mass Custom Home Network; to the Research Group in Management and Economics of Building, NORIE / UFRGS; to the Brazilian funding agencies, CAPES
and CNPq.

A design process proposal to brazilian Government’s social housing program

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