foam under the roof?

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Re: foam under the roof?

Postby Psychic » Fri Dec 06, 2013 11:06 pm

Geordie, I believe you posted that was locally made foam backed metal roofing which you chose based on cost over Colorbond. Do you mind me asking what the cost was, what colors are available and contact info for the vendor.
Thanks.
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Re: foam under the roof?

Postby vanda » Sat Dec 07, 2013 11:04 pm

Does anyone have a website or contact details for the company doing the spray foam "Lohr"?
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Re: foam under the roof?

Postby geordie » Sun Dec 08, 2013 2:00 am

B K ? MK metal roofs I believe was the company name I will check and get a number for you if you like but consider distance the company is in Bang Na just off highway 9/sukhumvit road not sure on lifespan compared to genuine colour bond roofing but the difference in price was very dramatic again I will find out a sq mtr price as I don't pay its not really a priority to remember prices a bit different when its your own house own money
I think there were only about six choices in colour he went with peanut butter as it was the lightest also its a choice of thickness
Most areas will possibly have a small unit producing this stuff its basically a roll of metal sheet fed through a set of rollers that indents the profile then they spray an adhesive on the metal and foam then bond the two together I know of at least three places Bang Na Lam Luka Highway 305 Thanyaburi which leads me to believe its common and of course there is the big store option which will probably have samples on display and make to order
I have to admit its the first time I have used it and I am a convert and because the roof had a simple slope dead easy to install using labour on site so no premium to specialist roofer
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Re: foam under the roof?

Postby Psychic » Sun Dec 08, 2013 5:59 am

Thanks Geordie. I'll be building near Chaam. I was thinking white Colorbond with a reflective heat barrier underneath. But it sounds like this is a great alternative. I am just trying to come up with ideas as the build won't happen until after next years rainy season probably. The main idea is cool and quiet. So this roof with a double wall, or possibly Q-con sounds good.
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Re: foam under the roof?

Postby geordie » Sun Dec 08, 2013 1:14 pm

Psychic wrote:Thanks Geordie. I'll be building near Chaam. I was thinking white Colorbond with a reflective heat barrier underneath. But it sounds like this is a great alternative. I am just trying to come up with ideas as the build won't happen until after next years rainy season probably. The main idea is cool and quiet. So this roof with a double wall, or possibly Q-con sounds good.


There are now several brands available Thaicon (21/22 baht each) is what I used to be truthful I took over from a Burmese Engineer who had managed to get the whole building out of square 150mm and a couple of the posts were same short of ripping out back down to the piles the only option was to use double walls so the inner walls are laid square the outer walls are laid to colums the outside walls are thai It blocks ( 4-5 baht each ) but needed them for cement render deep in places the aim was with the inner wall to stop the aircon working overtime trying to cool down the fabric of the building concrete is what was used in storage heaters for a good reason when you heat it up it takes a long time to cool down
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Re: foam under the roof?

Postby Psychic » Sun Dec 08, 2013 4:38 pm

Thanks Geordie.
Is thaicon widely available? 22B for 60x20x7.5?
I've pretty much come to the conclusion that my build will be done by family and crew coming down from Isaan. I'm fairly confident in their ability to do the shell. Probably better than a Burmese Engineer:-) I might have to monitor concrete strength, vibrating, curing etc. but the rest should be in their wheelhouse. I'm concerned with the electrical/plumbing as I've seen the wiring for a shower water heater taped together but I'm studying furiously to make sure I get this done to western standards. But the object is simplicity as I've decided that the indoors will be for refuge from super high heat and most of the living will be outside. I will attempt to get something like this put around a large outdoor area that will become the primary recreational area. (US company so I hope the links allowed). I love being outside but the little biters seem to be a problem everywhere.
Hopefully if the build goes according to budget there'll be enough money left over for a pool with the dirt from that making the start of a chipping green.

http://www.mosquitocurtains.com/1-foote ... osure.html
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Re: foam under the roof?

Postby geordie » Fri Dec 13, 2013 2:25 pm

I would imagine Thaicon blocks are fairly widely available the price may vary I was quoted by one supplier 27 baht per block a hell of a difference (farrang being factored in ) When she realised I was getting them for 21/22 baht she dropped her price which was good as the supplier at 21 baht ran out every couple of days :( buying 1000 at a time I insisted on collecting the blocks so all of them arrived as square with all corners present Thai wasadu were 22 bht a block but ran out of stock other than the 20 + pallets I had to drive by to leave the store when I questioned this I was told they were sold ???? Amazing place really most unhelpful store I have made the mistake of visiting still I recon they worked out cheaper than Thai concrete + the added bonus they should contribute to a lighter aircon bill (hopefully)
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Re: foam under the roof?

Postby Mike Judd » Sat Dec 14, 2013 3:27 am

I would be inclined to be careful using anything other than Q-Con blocks (Licensed by Hebel the German inventors) A friend used Thaiblocks and they were very fragile and broke up very easily, although his house is up rendered and still standing.
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Re: foam under the roof?

Postby Mike Judd » Sat Dec 14, 2013 3:29 am

Sorry, ! that's the ones with Thaicon stamped on them.
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Re: foam under the roof?

Postby geordie » Sat Dec 14, 2013 9:53 am

Mike Judd wrote:I would be inclined to be careful using anything other than Q-Con blocks (Licensed by Hebel the German inventors) A friend used Thaiblocks and they were very fragile and broke up very easily, although his house is up rendered and still standing.


I can only assume they have improved the menu for manufacture or your friend got a bad batch being a fussy ars I had a couple of walls taken down and rebuilt because of lack of care the blocks survived removal using an axe driven in as a wedge then removal of hardened glue again with axe also normal wear and tear moving around the site
The only precaution I took was to personally collect from the builders yard so I got complete blocks not broken scraps they were the ones with Thaicon stamped on them Amusingly one builders merchant wanted 27 bht for Thaicon 26 for Q con I would not hesitate to use the Thaicon again and found them as good as any AAC I have used in UK or maybe I was lucky
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Re: foam under the roof?

Postby Psychic » Sun Feb 23, 2014 8:36 pm

Geordie,
I have asked around Chaam/HuaHin for a locally made foam backed metal roofing material without luck. If you happen to have a number for the place in Bang NA where you bought it perhaps I can call them and see if they have dealers in this part of the world.
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Re: foam under the roof?

Postby Psychic » Tue Feb 25, 2014 9:59 pm

I just found a place here. "Sentai" metal roof. I believe 33mm for 120B for what works out to be 1/3 square meter and then another 50B to back it with foam insulation.
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Re: foam under the roof?

Postby Mike Judd » Wed Feb 26, 2014 5:41 am

Well after reading the posts I will put in my 2 pennies worth. What ever you use "foil vis Foam" neither should be there to stop the rain getting in, although foil if laid correctly should let any water that does make it's way under the the roofing ,run down to the bottom ,where as with foam it may just collect there if the roof is leaking. Obviously guys who have used foam with success are happy with their choice. But I can only repeat once again that here in Oz with some very hot summers in most parts, the preferred method seems to be Foil directly under the steel , with the sheets pressing into the foil which has various thicknesses of insulation inside the layers of foil, (Depending on how much you want to pay) Spraying under roof tiles is not something I've seen too much, although it could be an option I suppose, but I wouldn't like the job of trying to replace any broken ones.
With a leaking roof I would suggest starting where the leak shows with a hose on top and working your way UP the roof until you get a result. Apart from broken tiles which are obvious, the most likely culprit is on the ridges/valley, or where any part of the roof butts against a wall and the flashing hasn't been done properly or non existent.
What ever your choice, a well insulated roof keeps the heat out from above to a degree, but it also traps the heat rising from below through out the day and there for must be ventilated some how.
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Re: foam under the roof?

Postby fredlk » Sun May 04, 2014 11:00 am

Mike Judd wrote:What ever you use "foil vis Foam"

I have PU-Foam under the roof of the 2 buildings used as living quarters and the foil-backed insulation under the garage roof. There I only used it to dampen the rain noise, BUT from now on I will use PU-Foam everywhere.

My dogs, 2 Jack Russells and an almost fully-qualified honorary Jack Russell are excellent rat catchers and killers and the rats have learnt this so a couple went to live in a section of the garage roof for a while. I soon noticed that bits of chewed insulation were dropping on the floor and they were enjoying room and board at my expense. They have since been disposed of, but as I said, from now on, it's only PU-Foam as insulation for me.
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Re: foam under the roof?

Postby schuimpge » Sun May 04, 2014 12:11 pm

fredlk wrote:
Mike Judd wrote:What ever you use "foil vis Foam"

I have PU-Foam under the roof of the 2 buildings used as living quarters and the foil-backed insulation under the garage roof. There I only used it to dampen the rain noise, BUT from now on I will use PU-Foam everywhere.

My dogs, 2 Jack Russells and an almost fully-qualified honorary Jack Russell are excellent rat catchers and killers and the rats have learnt this so a couple went to live in a section of the garage roof for a while. I soon noticed that bits of chewed insulation were dropping on the floor and they were enjoying room and board at my expense. They have since been disposed of, but as I said, from now on, it's only PU-Foam as insulation for me.


Same here Fred. Not sure about factory installed PU-foam, guess a matter of preference, but nothing else but PU-foam gets under my roof ever again.
It's a solid long term investment in your roof and choosing a proper company to do it gives you a no-questions-asked guarantee for 5 years. To me that's a no brainer to start with.
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