A House for a Moon Dazzler: A Study of Ventilation, Material, and Indoor/Outdoor Relationships

Location: Guanacaste, Costa Rica
Function: Residential
Client: Benjamin Garcia Saze’s mother
Construction Cost: USD 40,000
Main Material: Bamboo
Completed: 2010
Architect: Benjamin Garcia Saxe

The Bamboo House, designed by Benjamin Garcia Saxe, is the perfect example of a natural atmosphere. Concepts behind this design, such as natural ventilation, ample shade, and sustainable materials, are great ideas to think about in our design for Haiti.

The one bedroom home allows the interior and exterior to coexist. The bedroom is located on one end and a kitchen and living space are located on the opposite end. The two spaces are separated by an open courtyard.

Roofs for both main areas are made of bamboo rings covered in burlap that open up underneath the larger tin protective roof. The roofs give the appearance of being detached and raised above the rooms.

The open air construction and the large overhanging tin roofs allow for natural air ventilation but still provide ample shade from the hot sun.

Haiti Home Design - Round 1

For today's class, each group was given the task of completing a first iteration of two house designs. Our group focused on designing an expatriate family house and a patriate family house. We split into two smaller groups to discuss our focuses and come up with plans, sections, and elevations. 

 

A Patriate Family House

In thinking about the qualities that we wanted to focus on, the distinction between public and private spaces and allowing ventilation throughout the house became priorities. We zoned the house into a private band - the bedrooms and bathrooms, a semi-private band - the living, dining, and kitchen areas, and a public band consisting of the porch. We began a study of how to best provide ventilation through the pitch and form of the roof and the areas that might contain vent block on the house. 

In our critique, our professors gave us further suggestions and ideas on how to best form the roof. We will look into changing our design to a butterfly roof in order to promote both ventilation and rainwater collection. We will also further analyse the connection between the living area and the porch. We want to design our house so that we can take advantage of the climate in Haiti. We will also change the current location of the dining area so that it is incorporated into the rest of the living space. These changes will help reinforce our ideas and distinctions between public and private spaces.

ExPatriate Family House

Our team came up with the initial design for this house as part of the schematics that we took down to Haiti to present to Jean and Joy. We modified it based on the feedback that was given while in Haiti. Ventilation, daylight, and ease of construction were the focus for this design.

Moving forward with this design will require a deeper look into the layout of the core spaces. The parti of the house is working well and just needs a little refinement, but the design needs to reflect it more. This will be accomplished by analyzing the adjacency of spaces, working on organization, and refining the interior layout so that it reflects the concept.  

Reflection & Next Steps

Traveling to Haiti gave us a whole new perspective on life, culture, construction, climate, and all kinds of other local conditions. It was a truly humbling and life changing experience. We could go on and on about key issues we were able to identify, but we've chosen the ones that are most relevant to our project:

Local Materials / Construction Technologies:

When designing in any unfamiliar context, it is always important to look at local construction practices, available materials, and feasibility of access/transportation. Being wise about your material palate is mandatory when designing in these conditions. Concrete and masonry were pretty much the norm.. Concrete block are often cast on site, making transportation to remote locations much easier. There was hardly any glass on the structures we saw. Rather, vent blocks were used. These allow cross ventilation, and cooperate well with the wall assembly module. Like blocks, they can be cast on site as well.

Vent blocks: the local standard for ventilation and openings in Haitian construction. Photo by Zach Smith

Shade, Light, and Ventilation:

Lack of air-conditioning is the standard in almost all of Haiti. This makes solar orientation, aperture sizing, shading methods extremely important. Haitian construction utilizes vent block, or hollow cmu shapes, for window construction. If planned well and placed correctly, these may also contribute to cross ventilation. Shade is another thing to strive for. Haiti is very hot almost all year round. Planning using solar orientation is an important part of construction. Deep overhangs are also a way to provide shade to openings in the structure.

Open air vent block in Haitian classroom. Photo by Zach Smith

Porch and Community

We quickly became aware that the porch of a Haitian house is usually the most important "room" of any residence. Our clients mentioned that almost all gatherings at one's house took place on their porch. Through our design, we must look for a way to give hierarchy to this important space in Haitian culture.

Porch area in Fond-des-Blancs home. Photo by Cassidy Barnett

Privacy

While the Haitian People had a strong sense of community, privacy was also a significant thing. The idea of having one's own property was very important to people there. Almost all the property lines in Fond des Blancs we marked off with rows of cacti. In a country were everyone has very little, the people are very proud of the things they do possess.

Local privacy fence with wooden gate entrance. The actual fences are cacti. Photo by Cassidy Barnett

Pragmatic, Sustainable Construction Practices

What we American's know as "style" is not as high of a priority in a country like Haiti. We must find ways to create architecture with a sustainable material palate, without being wasteful or inefficient. We must find ways to building sustainably in a country that often doesn't have the luxury to use green technologies.

Concrete blocks cast on site. Photo by Zach Smith