The second day has been just as interesting, we have been seeing at least four models of construction:
The prefabricated house, another one of classic design but armed in the place, soon one with special design and finally one of walls of reinforced concrete.
In this case I want to focus on wood construction, which seems to be the soul of construction in the United States. It is curious to think about making a house with two floors, with at least 3,500 square feet, we think in several months; for the North Americans, to do it in 25 days from the presale to the delivery of keys, is common.
They call it Subdivision, and it is a highly planned procedure although it is also a cultural environment linked to many Traditions both for urbanization and the suburbs.
The sewage goes to general collectors that the cities have but the rain waters go to artificial lagoons called "lakes". Because they are flat topography, they do not have rivers where to move their waters in a storm, so each urbanization has designed an artificial lagoon where the water arrives in large pipes from the drains.
They use the foundation slab, with pre-mixed concrete and post-tensioned cables made by a machine after casting.
On the perimeter are bolts where the base of the walls is anchored and reinforced with nails driven by a pressure gun.
Everything is wood, modular panels that are assembled from the factory. Each piece has a lasser mark indicating where it is located, the nails are placed with a gun and contain a kind of rubber on the tip, which is fixed by the heat with which the nail comes out.
At the ends of the walls they use T-veins in 45 degrees for bracing and special staples at the base to prevent the house from being lifted by the wind in a hurricane, although when the tornado comes there is not much to say.
It is a kind of playwood that bears the black marks of the bottom lines of the floor to be guided. The complete structure is wood, they use special beams for long stretches, which are made of glued playwood pieces and wood fused in a special additive, then they fill the spaces with wooden joist armed with plates.
The Roof and others
All the ceilings are Chingle, high and there are air conditioning ducts inside that is an inescapable obligation (Houston is the city in the world with the highest consumption of air conditioning). In the plumbing flexible ducts are used that are controlled from a panel as we would with electricity.
Time ... Everything is very well industrialized, in the factory there are employees simply making a cut in 45, during their 8 working hours. A house with two floors, with 1,300 square feet, can be completed, from the foundations to have it ready to live, in 25 days. Although the most delayed is the finishes, because the example that I am showing, was built in two days the entire wooden structure with six people in days of 7 hours.
My first day was to see its beginning, the second day I missed seeing the roof to arrive a few minutes late.
One day later