GOTI wrote: Re: Insulated Concrete Forms (ICF's). There needs to be better planning and understanding of building materials and marketing efforts to the public for proper and modern techniques in construction. However, from comments and readings on this Forum, the Chilean residents may have habitual practices of just overlooking practical new methods and settle for the cheap choice.
There was an article on the front page of today's main regional paper, La Prensa Austral, entitled “Aislar mi casa no sirvió de nada” (
Insulating my house did no good). Even the press are in on this.... they don't want energy efficiency, they just want more cheap gas forever, in a country that is energy-poor to start with. Progress is up against this sort of recalcitrance, which is effectively supported by the social order and the local media. The prevailing notion here and in much of Chile is
"Es lo que hay" -- it's what there is -- and many efforts to bring about improvements in building, including energy-efficient investment in building, are met with crossed arms and impeccably closed minds.
It's interesting to note that in some of the older houses here built to British standards (that's why our dimensional wood is measured in inches in Chile) there was originally a reasonable attempt at insulation, using materials such as sawdust or wool waste. Now those materials have disappeared from the old houses. I was actually told by a local college-graduate chilean that if you don't change the sawdust or wood shavings every year or so, there is no insulation value left. That is the mindset and the quality of Chilean education that we are up against in bringing this country out of the 18th century.
Some of my critics insist that if chilenos had good materials websites and knew how to google then the lights would come on, and Mazda would triumph over Ahriman. I insist that the proliferation of more data has very little to do with overcoming the fundamental and debilitating inertia of social outlook. Chilean DNA is lacking in the payoff-over-time chromosome. Might be run over tomorrow so why insulate for a 5-year payback horizon?
The most fundamental aspects of heat transfer seem to escape even educated Chileans. I sold an older house to a college-educated chileno in this village, to be remodeled. The climate here is comparable to Prince Rupert in British Columbia, which has similar latitude and conditions except for higher wind here. I think about 1 percent or less of the remodel budget went to insulation, and even that was wasted. Here is his concept of ceiling insulation: directly above the
cielo raso, zilch, nada, rien, res, nichts, just the thickness of paint on the 18mm HR100 that makes up the very combustible ceiling (so yes it's a firetrap AND energy -inefficient - the apex of modern chilean home remodeling). The attic, the
entretecho, is essentially a wind-tunnel, with one air-exchange every 60 seconds. There is two inches of kraft-backed fiberglass batting up against the metal roof. It does absolutely no good, because the prevailing strong winds enter the 5 cm daylight gap at the junction of roof and walls, allowing every kilocalorie that enters the attic to be blown out immediately. I pointed this out to him and explained some possible improvements. He just shrugged his shoulders and said, I don't care if you're an engineer or not; you're not from around here and you don't understand how we do things.
And that is at the core of the civil disturbances down here right now: the perceived right to continue to have 80 percent of the cost of residential heating gas subsidised, and the associated right to not have to insulate or otherwise weatherise buildings. And the local population is evidently moving in the direction of a quixotic regional shutdown of most economic activity to preserve those imagined
fueros.Taking some lines from the mob-chant playbook, "El pueblo, unido, jamás será [con]vencido."