http://servicio.mercadolibre.com.ar/MLA-159132845-poliuretano-expandido-in-situ-aislacion-termica-_JMNot for homes.
I've found the oposite having been here. Masonry construction has a large thermal mass that resists temperature fluctuations and tends to average out daytime and nighttime temperatures. The construction entremedianeras - at least here in capital - limits the amount of heat absorbed from the sun to one wall and a roof. Even on hot days the walls of the turn of the century PH I lived in when I first came to BA would be cool to the touch. This was a lot less pronounced in the house I lived in up until june which was constructed with hollow brick rather than common solid ones.
My new house has central air and the duct work extends down to the garage and dependencias in the subsuelo with both supply and return vents. Since we're still technically in winter I haven't a chance to test the effects of this in the summer but I'm suspecting that the basement and garage may be able to function as a sort of heat sink for the entire house. Basements are usually cool in the sumer (due to the thermal mass of the earth) and if the temperature of the walls is lower than what I set the thermostat at this should take a load off of the AC. I'll update in december.
I'm in it up to my neck. Right now trying to find the right contractor/weather to start replacing my entire terrazza on my 7 year old house <_< . II don't understand the materials involved, otherwise I would do the work myself.The biggest problem we had with our house is the leaky roof…no matter how many times we had it repaired by different people, we always had problems. If I had to do it again, I would tear the roof off and start over again while watching every step like an eagle.
If you're buying or building, don't forget the roof! It's almost comical how many owners we know who have major roof problems.
Frenchie has his ideas, I have mine... I'm a big fan of the Arts-and-Crafts style. I love timber roof, wood everywhere, stone, and built-in cabinetry, bookshelves, etc.Just to balance out some of the modern style buildings i keep seeing in this thread...here! :
Very interesting read here. The concept of Climate Responsive Building. In particular, the Design for warm Humid climates.
There was more about this topic in relation to placement and orientation of construction to optimize the change in solar path/angles of the sun in winter/summer for decisions of shape and angles of roof construction.
Malaysian homes seem to be pretty efficient at passive cooling throughout the day... kinda blows the whole brick-cooling idea away as they use very light construction material. Maybe, I build me a house on stilts
I think the problem stems from the status-quo thinking. Split ACs are available everywhere and are targeted to be sold here. Central air requires thought in how to effectively distribute and insulate the ducts; then how to cleverly mask the ducting. I don't think that you have such an abundance of installers and replacement parts to make central air marketable and/or profitable here.On the subject of cooling costs, I'm perplexed by what appears to the ubiquitousness of "split" air conditioner systems in Argentina. I understand their appeal when retrofitting an existing home, but I also see them installed in almost all new builds as well, even very premium homes. Why is central air conditioning so rare, when it's clearly more efficient and economical in the long run (not to mention the aesthetic considerations raised earlier)?