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not_ally

Dec 9, 2004, 8:40 PM

Post #1 of 11 (2950 views)

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Update/Foam Panel Construction

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Hi all,

Figured that with all my questions, now that I actually have some potentially useful information I should post it. So after my questions to all and sundry regarding the use of foam panel construction in Mexico (specifically in San Miguel de Allende), I decided to go ahead and do it, for at least a good chunk of the project. The house I bought was originally a small one story structure with low ceilings and a little second story addition which housed a bedroom. I ended up demo-ing everything except the walls of the first floor. I also tore out everything inside the structure, so basically ended up with a four walled shell. Given the existing walls, my contractor and I decided to do a mix of materials, as follows:

-- New stand-alone casita, 2BR/1.5 bath, two stories, all of foam panels.

-- Existing house/shell: Built up existing exterior walls on first floor to 11", with brick/mortar, also used brick/mortar on new second floor exterior walls. Used foam panel for staircase to second floor, first floor ceiling/second story floor, and all interior walls.

We are also using the panels for the wall at the front of the lot, and construction of many of the interior features including (inter alia) some pillars, built-in bookcases, kitchen counters (most of these will be tiled over though), tub and shower enclosures (similarly will be tiled), etc.

My contractor has experience building with these panels, and is the licensed distributor for the co. in this area. The company also sent down an engineer who reviewed the plans and trained the local crew for a couple of days before work with the panels began (they are all now "certified" to work with the panels).

So far I have been delighted by the speed and relative ease with which things have gone, especially with the panels. Still have a long way to go, and are about two months away from finish work, so it'll be a while before I can verify that everything will be ok in that respect (the company says it's just like building with anything else, you can use any kind of finishing materials you want.) If the project ends the way it's been so far, I will definitely use the foam for other building projects that I'm planning. Only difference is I think I'll just buy raw land and use all foam panel construction - the biggest slowdowns have come in the parts when we're doing the traditional construction or trying to integrate the two.

Cost: @$30.00 per sq. foot as per my contractor, depending of course on what kind of finishes you want.

Regulatory aspects/permits: No issue, we got our permit without any problem. The house is not in El Centro, the historical district (where building is intensely regulated); don't know if it would be different there.
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"The first question I ask myself when something doesn't seem to be beautiful is why do I think it's not beautiful. And very shortly I discover there is no reason." John Cage


(This post was edited by not_ally on Dec 9, 2004, 8:45 PM)



patricio_lintz


Dec 10, 2004, 10:47 AM

Post #2 of 11 (2926 views)

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Re: [not_ally] Update/Foam Panel Construction

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We have started our planning for our foam panel house in Vista del Lago, Chapala Jalisco. It will be more or less a territorial style house. Construction size is 290 sq. meters

Our architect has designed this type home previously and we have contact with a local foreman and crew who have built one in Las Brisas.

Do you know of a gunnite (shotcrete contractor) in the Guadalajara / highlands area? It makes so much more sense than slopping concrete on by hand.

The main advantages of this construction is time of construction and strength. This construction provides an energy efficient, earthquake and hurricane resistant house. After the concrete sets up, the house is one monolithic shell.
Reference for those interested.
http://www.tridipanel.com/projects/index.htm


patricio_lintz


Dec 10, 2004, 10:53 AM

Post #3 of 11 (2923 views)

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Re: [patricio_lintz] Update/Foam Panel Construction

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Also, what foam panel company are you using? Please give the contact. Our architect prefers a local Guadalajara distributor / manufacturer. Not sure of the name yet.


bournemouth

Dec 10, 2004, 4:39 PM

Post #4 of 11 (2910 views)

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Re: [patricio_lintz] Update/Foam Panel Construction

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Mexicans are wonderful at applying stucco and concrete coating by hand. I find it best to go with the system the locals are used to and do well. Labor is reasonable enough that you do not suffer financially. In our area swimming pools are concrete coated and we're not that far from the border. Good luck with the construction - it would be nice to hear from you as work goes along - photos even!


not_ally

Dec 10, 2004, 7:13 PM

Post #5 of 11 (2899 views)

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Re: [patricio_lintz] Update/Foam Panel Construction

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Patricio, don't have contact info for gunnite contractors in Guad. or anywhere else, we're doing the slopping on by hand method, at least for the time being. I probably will try to find someone now - since I'm going to use the panels going forward it's worth it to do the research on those materials and equipment. The name of the company that manufactures the panels is Covintech, and the engineering/training help was sent from D.F. I can give you my contractor's name and number via private message if you want, let me know.

It is amazing how strong the stuff is - my parents house in LA is across the street from people who have a gigantic (100ft?) retaining wall of gunnite that's been standing for 20 years, I bet. Totally illegal under the current LA building code, now it'd be cost prohibitive to try and do. Ah, progress.
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"The first question I ask myself when something doesn't seem to be beautiful is why do I think it's not beautiful. And very shortly I discover there is no reason." John Cage


ReneePoffenroth


Jan 25, 2005, 8:48 AM

Post #6 of 11 (2816 views)

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Re: [not_ally] Update/Foam Panel Construction

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Hey All:

I am new to this website and have been scouring all posts for information. We are from
Alberta, Canada and are considering purchasing property in Mexico. I think that we have
decided to buy a bare lot and build. While we are building we would have our fifth wheel
trailer on site and live there if possible, and maybe rent if the rainy season is too miserable.

We don't know if this plan is feasible, and are still looking for information on all aspects of
moving to Mexico. My question today is what are these foam panels that you are talking
about? Do you use them for interior walls only or are they used for exterior/structural walls
as well. I am sorry if this question sounds ignorant, but as far as building in Mexico goes
we are!! We have a concrete construction company (2 Concrete pumps, prep crews, placing/finishing
crews) in Alberta so the type of construction we are used to is very different. I went through
Rolly's website building projects and was aghast at how long construction takes in Mexico.

Is this the norm? We expect that we can do a certain amount of work ourselves, the tough
part sounds like finding experienced and good trades (whatever those are in Mexico). Any advice
would be appreciated


patricio_lintz


Feb 12, 2005, 8:31 PM

Post #7 of 11 (2747 views)

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Re: [ReneePoffenroth] Update/Foam Panel Construction

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The concrete panel construction is covered pretty well by this manufacturer


http://www.tridipanel.com/projects/index.htm

Paste the link in your browser to see whatt's done with this material.

We do not use this particular manufacturer because competing local manufacturers are cheaper.

I am starting our house in Vista del Lago, this month. All panel in & out. I will be posting pix as soon as I sign up for web space & have something to show.

Our subdivision, although highly restricted (for Mexico), allows RV parking during the construction phase. After building, RVs must be parked on the lot & not used as living quarters.


patricio_lintz


Feb 12, 2005, 8:38 PM

Post #8 of 11 (2741 views)

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Re: [patricio_lintz] Update/Foam Panel Construction

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Also, we sure could use a good concrete pumper / spraying company in the area. It surely would cut down on build time.


patricio_lintz


Feb 27, 2005, 7:29 PM

Post #9 of 11 (2677 views)

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Re: [not_ally] Update/Foam Panel Construction

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We are finally starting our house, lakeside in Vista del lago. Sometime within the next two weeks will be the groundbreaking.

We will be using the RYMSA panels manufactured in Guadalajara.

RYMSA has a brochure for DIY which is useful.
Rolados Y Manufacturas, S.A. De C.V.
Division: Prefabricados Para La Construccion
Av. Colon No. 1497
3124-3004 y 3124-3005
e-mail: rymsap@prodigy.net.mx


(This post was edited by patricio_lintz on Feb 27, 2005, 7:34 PM)


heathesq

Mar 30, 2005, 2:23 PM

Post #10 of 11 (2567 views)

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Re: [not_ally] Update/Foam Panel Construction

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Foam pannels seem th way to go for me with one reservation.

Part of the comfort of our existing house here is that the thick walls and ceiling act as a heat sink - during the day they retain the night's coolness and in the evening they radiate the day's warmth. Foam pannels have an actual r-value. Will this still be comfortable in the Chapala area given that I don't want to get into active cooling and heating?

Roger Heath


wyhaines

Apr 7, 2005, 10:26 AM

Post #11 of 11 (2497 views)

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Re: [heathesq] Update/Foam Panel Construction

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It is hard to say for sure without knowing more about your current walls.

However, with that system of foam/mesh panels sheathed in concrete skin, you are looking at masonry thicknesses of about 2 inches on each side. In addition, while the foam cores provide a pretty high R value per inch, they are not thick enough to provide really substantial amounts of insulation.

That is, given the climate in most of Mexico, it's absolutely adequate, but the R value is still low enough that heat passes through without a tremendous hinderance.

The amount of mass present should be enough to moderate diurnal temperature swings, but it won't be able to soak up nearly the heat of, say, a thick adobe or stone wall. This is mitigated quite a bit by the insulation, though, so my _hunch_ is that performance will be at least as good as the performance of a thick adobe wall.


Kirk Haines
 
 
 
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