Steel Roofing

[Crossy]

Our love-nest (retirement home) is to have Ayutthaya (central Thai) style dual-slope roofs, the architect has drawn these using tile.

I was wondering about using steel roof panels similar to Colorbond http://www.colorbond.com/ with a spray-on insulation/sound deadening layer. We ought to be able to use a lighter structure because the material is lighter.

Anyone actually used this system in Thailand? Is it cheaper than tile? Comments?

[petercsea]

Our love-nest (retirement home) is to have Ayutthaya (central Thai) style dual-slope roofs, the architect has drawn these using tile.

I was wondering about using steel roof panels similar to Colorbond http://www.colorbond.com/ with a spray-on insulation/sound deadening layer. We ought to be able to use a lighter structure because the material is lighter.

Anyone actually used this system in Thailand? Is it cheaper than tile? Comments?

I think your idea is great Crossy,

The material is definitely light as and easy to maintain. You have two choices of steel either galvanised or zincalume. The Zincalume is believed to last 4 times longer than galvanised.

It is easy to paint it if its not a standard colour 2 coats of Acrylic weather paint. If its new material the application of a primer doesn't seem imporatnt. You would probably void the warranty by painting so hopefully the colour chart is to your liking.

The pitch of the roof is greater, I would think, than most roofs using steel material. You would have to take some very expert advice on this particularly as it maybe a factor that is quite important with unusual stresses at attachment points.

As far as overall strength goes it seems that the wave pattern is the most robust. One great thing is that the manufacturers have excellent web-sites with a heap of information on anyhing that you can think of that may be relevant to installation, maintenace etc.

I would look for non spray on solutions because of warrantees and other factors. Both sound and heat can be reduced by underlaying a foil coated glass wool blanket, foil side up in intimate contact with the steel is the recommendation. If you still wanted more then I think it would be easy to add extra thickness below this layer.

I don't have any idea of costs here and no experience of the material in Thailand.

[Crossy]

I would look for non spray on solutions because of warrantees and other factors. Both sound and heat can be reduced by underlaying a foil coated glass wool blanket, foil side up in intimate contact with the steel is the recommendation. If you still wanted more then I think it would be easy to add extra thickness below this layer.

Yeah, I was thinking that it may be better to use a more conventional insulation as you describe.

Bluescope Steel (Colorbond) do have a Thai office, I've sent them a message on the website, hopefully they'll come back with some sensible info.

May drop in and see them (their factory is in Rangsit) when I'm back in Thailand next week. I'll get the architect to talk to them he seems happy to look at alternative materials, didn't even blink at QCON block

EDIT Bluescope have evidently done it before, from their website, exactly the type of construction we are considering

Edited May 12, 2008 by Crossy

[petercsea]

[

EDIT Bluescope have evidently done it before, from their website, exactly the type of construction we are considering

They do look good Crossy,

Expect ongoing pics of the project when it's underway

Seems as if this one is falling into place nicely. One great thing about steel it is generally limited to imagination only. Sure the Ayutthayan's would have used if if Lysacht were one of their trading partners

FYI: There's a new buidling display place which I think is specialising in roofing near Kaeng Khoi on Thanon Mittraphap. Drove past it in the rain so didn't stop but will and if you're interested a couple of shots of their roofs I think in steel.

One thing I definitely noticed is the layered roof style somewhat similar to traditional temple roofs. They do look good and at least intuitively would offer some solution to heat escape. You'd probably have to get your architect to give you a bit of a finished impression though Maybe OTP for central Thai style.

[Goinghomesoon]

We have the same roof style on the place we will be building and have just been told the CPAC tiles we wanted would be too heavy, so this might be a solution for us too. Would be interested in any feedback you get from Bluescope.

[MrIrrisistable]

Have you got any pics of a finished roof in this style ?

Personaly I would think that steel replacing the tiles that it is designed for, would look very ugly. In this type of designed house, the roof is a feature and the tiles relay that feature and give it a stylish classy look. Colourbond would just make it look cheap and nasty in my opinion. But that is just me.

Nothing against steel roofing when the design is right for it.

[Crossy]

Personaly I would think that steel replacing the tiles that it is designed for, would look very ugly. In this type of designed house, the roof is a feature and the tiles relay that feature and give it a stylish classy look. Colourbond would just make it look cheap and nasty in my opinion. But that is just me.

I agree, I don't think that a direct copy will work and look right, we're more aiming for the look and feel. Definately got to find and examine one before shelling out, the fact that there is a similar design shown on the Bluescope site suggests that there's something to look at

No response from them thus far

Edited May 21, 2008 by Crossy

[MrIrrisistable]

Will be interested to see it if they send you any pics of the finished roof, I presume those pics you put up of the steel roof frame is from them. They must have the finished product somewhere in photo.

Personaly I like the flat roof in their website, I did not know that you could get such a low angle...they quote as low as 1 degree above horizontal...with steel sheeting, thought the water seepage/proofing would be a huge problem.

We did a steel near flat roof, but the height difference is just under half a meter over an 11/12 meter span, not sure what that works out to in degrees however. I would have like to do it even flatter if I had seen that site beforehand.

[missismiggins]

Hi,

you might want to try some tiles by Ayara, (Ithink they are Nationwide but have a large factory in Lampang) I used the "tradditional" version but I have seen roofs similar to yours using the "original" version in a light orange or light grey, and they look great.

The tiles are lighter than C-pac and are extremely colourfast. They are not the cheapest around but for their size/weight are very strong, keep the place cool (especially if you put the reflective foil in first.

If I remember rightly, they run around 50 baht each, and there is around 8 per square metre.

That foam spray stuff you mentioned, I checked with the company in Chiang Mai and it worked out more expensive per metre than the roof!!!!

Somewhere...somewhere...somewhere I have a brochure, if I can dig it out, I will scan it or mail you some details.

One word of warning with the steel roofing from what I have seen around here - first is the colour fastness (stay away from TOA unless you enjoy repainting every year) Many of the local roofs fade in one year and look awful and blotchy.

second, the number of fixing points per metre is pretty low (the Ayara system uses 3 self tapping screws per tile - so you have roughly 32 ties per square metre - you will need a good electric screwdriver.) The roof is extremely strong, I had 18 guys walking up and down on it during the install and they never cracked a tile.

Lastly I guess is the noise when it rains or hailstones - you would need to factor in something (I cannot remember exactly only that I almost fainted ) like 350 baht square meter for that spray on foam.

I have just been given the details from my wife - she is good at finding things I put away! LOL

OK - It is AYARA SHINGLE ROOF -Natural Look / Classic look the only contact details are in tiny Thai script, but there are some numbers 025863838, 025864992, 025862433-4

If you tell me how I can send you a scan, I will scan you a couple of pages to give you an idea, I reckon they would look great on your roof!

Cheers

[Crossy]

OK - It is AYARA SHINGLE ROOF -Natural Look / Classic look the only contact details are in tiny Thai script, but there are some numbers 025863838, 025864992, 025862433-4

If you tell me how I can send you a scan, I will scan you a couple of pages to give you an idea, I reckon they would look great on your roof!

Thanks for that MM, the Ayara Classic looks exactly what we want http://www.scttrading.com/product/product_...spx?Prodid=3274 farewell all ideas of steel roofing, I reckon it just won't cut it compared with this

[Goinghomesoon]

Thanks MissisMiggins. We rang about the Ayara tiles this week. The service person who answered the phone was excellent, he could answer all my partner's questions and it sounds like the Classic will be a great option for us. Also they have a distributor really close to where we are building, so that's a thumbs-up.

[zzdocxx]

Interesting topic, thanks.

[jojothai]

OK - It is AYARA SHINGLE ROOF -Natural Look / Classic look the only contact details are in tiny Thai script, but there are some numbers 025863838, 025864992, 025862433-4

If you tell me how I can send you a scan, I will scan you a couple of pages to give you an idea, I reckon they would look great on your roof!

Thanks for that MM, the Ayara Classic looks exactly what we want http://www.scttrading.com/product/product_...spx?Prodid=3274 farewell all ideas of steel roofing, I reckon it just won't cut it compared with this

Hi Crossy

make sure you check the purlin spacing is compatible for fixing.

You have the purlins on already. Tiles are not all the same, many do fit similar grids, but not all. best to check straight away first.

The Araya looks good. but they do seem expensive but I know price only from standard ridged CPAC.

For your info I used CPAC monier ridged tiles 13 baht each and about 10 per sq meter is 130 baht per sqm compared to 50 x 8 = 400.

However with your roof you probably have the flat tiles and I dont know their comparative cost.

By the way when you need to get pieces of flashing to seal key places you do not need to buy the CPAC products. They are extremely expensive because they are very strongly reinforced. You can get Sika MULTISEAL from homepro and other DIY places. it worked very well for me, the builder was impressed. You can buy small rolls, or as I did a 10meter roll 300mmm wide then cut the pieces you need. From memory they were about 2500 baht per roll. Another local company product is sealtex which is cheaper looks Ok, but not the same reliability as quality from Sika. Sika is one of the top international reputable makers of these products. The multiseal can be overpainted, use the same color matching acrylic paint as for your mortar.

regards

jojo

[jojothai]

Crossy

I forgot to add that CPAC have a very good illustrative brochure for doing the roof flashings.

Most people including the builders dont know how they are done properly.

Well worth asking for the brochures at a supplier or ring them and ask, their technical people were very helpful on some issues I had.

I got my copy in a homemart outlet.I dont have it here it is in the province so cannot pass on at present.

jojo

[jojothai]

I managed to get a new copy of the flashing manual from a roofing center recently and have posted on the thread which has some manuals, see

http://www.thaivisa.com/forum/Roofing-Manu...83#entry2327383

regards

jojo