A house we are building near Surin ,North Easth Thailand..

[alanthebuilder]

No reflective foil under the roofing tiles.
No ventilation of the attic space.
No insulating of the ceiling that can be seen.

Sure glad I don't have to live in and try to cool that oven!

C-pac monier tiles breath and inside the roof space it is light and airy ,adding "reflective" foil turns the airy light roof space into a dark airtight sweat box , the client who we are building for is an "engineer" told us do not add this "reflective" foil . Also what can it reflect "under" the tiles ? NOTHING at at !if it was on top of the tiles it could reflect the suns rays ,but under the tile I don't think so ,plus it falls apart after a few years !
We do use it if the client wants it but with these curvy C-Pac Monier tiles it makes no sense at all to do so.
There is also lots of ventilation and airflow above the fascia boards that's why we add a plastic bird stopper as there is a 25mm gap at ever 15 cm all the way around the house , so lots of air flow and breeze .
The walls are Q-Con Super insulating blocks ,with bagged insulating stucco (render) ,so all in it will be cooler than most houses .

Thanks for you input guys :happy7:

[bbf-old]

Infrared radiation (also known as heat) is not reflected back into the tiles? Best be telling C-PAC that it's not so as they're promoting the use of it in their roofing systems. I've used it repeatedly under roofing tiles and sheets... just step under the area with the reflective foil and one can instantly tell the difference.

Hot air rises in case you missed that point in basic physics. You may have all of the gap with bird stoppers etc around the fascia but that bubble of hot air trapped in the attic has no where to go unless you vent it UP and out of the attic space. The trapped heat also radiates in all directions so the ceiling is a big radiator down into the room below unless it is insulated with at least 6" of fiberglass insulation. C-PAC sells a ventilating ridge tile system which works fairly well but is not adequate for complete ventilation of the attic space.

Q-Con block is fine for exterior walls but should be combined with an air gap and red brick walls on the inside. If your client ever wants to hang anything from the Q-Can he will soon find out how structurally weak it is.

My knowledge is from information I have gathered from many sources and, most importantly, how I have had my home built. What might be acceptable and works in the UK is not necessarily going to be right in the tropics.

[Neal]

I know for nothing about building so if this is comment/question is stupid, please be gentle. I remember when I was a youth of about 10 or 12, the family home had a large attic fan of some type that when we threw a switch it sucked all the hot ir out of the attic. Is that an option here in Thailand? :idea1:

[bbf-old]

I know for nothing about building so if this is comment/question is stupid, please be gentle. I remember when I was a youth of about 10 or 12, the family home had a large attic fan of some type that when we threw a switch it sucked all the hot ir out of the attic. Is that an option here in Thailand?

:idea1:
Surely they're available somewhere... but why pay for electricity when nature can take its course by letting the hot air have a place to escape?

The only stupid question is the one you didn't ask... Thanks for asking!

[alanthebuilder]

Infrared radiation (also known as heat) is not reflected back into the tiles? Best be telling C-PAC that it's not so as they're promoting the use of it in their roofing systems. I've used it repeatedly under roofing tiles and sheets... just step under the area with the reflective foil and one can instantly tell the difference.

Hot air rises in case you missed that point in basic physics. You may have all of the gap with bird stoppers etc around the fascia but that bubble of hot air trapped in the attic has no where to go unless you vent it UP and out of the attic space. The trapped heat also radiates in all directions so the ceiling is a big radiator down into the room below unless it is insulated with at least 6" of fiberglass insulation. C-PAC sells a ventilating ridge tile system which works fairly well but is not adequate for complete ventilation of the attic space.

Q-Con block is fine for exterior walls but should be combined with an air gap and red brick walls on the inside. If your client ever wants to hang anything from the Q-Can he will soon find out how structurally weak it is.

My knowledge is from information I have gathered from many sources and, most importantly, how I have had my home built. What might be acceptable and works in the UK is not necessarily going to be right in the tropics.

Hot air rises in case you missed that point in basic physics ,, exactly so why trap the hot air (this is my point) with foil , let the roof breath the with Cpak tiles the roof space is light ,you can see ! We have been using Q-Con blocks in Thailand for years as in Germany for heat reasons ,single skin is fine however we do ask the client on EVERY house would you like a double skin ,the Q-Con blockhttp://www.qcon.co.th is great for getting a fix and hanging curtains pictures and so on .Any way here are a few more pictures ,thanks for the input Negative or otherwise always welcome .But if I was after confrontation I would be on Teak door- lol lol ..

[alanthebuilder]

I know for nothing about building so if this is comment/question is stupid, please be gentle. I remember when I was a youth of about 10 or 12, the family home had a large attic fan of some type that when we threw a switch it sucked all the hot ir out of the attic. Is that an option here in Thailand? :idea1:

Not a silly question ,but this here is a roof space not an attic ,the hot air in you attic most prob got blown into the roof space unless it was a wall vent and then it would of got blown to the outside of the house .However hot air does rise and with these tiles the hot air comes in above the fascia boards and seeps out through the roof tiles lots of ventilation and breeze . :happy7:

[bbf-old]

"Hot air rises in case you missed that point in basic physics ,, exactly so why trap the hot air (this is my point) with foil , let the roof breath the with Cpak tiles the roof space is light ,you can see ! We have been using Q-Con blocks in Thailand for years as in Germany for heat reasons ,single skin is fine however we do ask the client on EVERY house would you like a double skin ,the Q-Con blockhttp://www.qcon.co.th" onclick="window.open(this.href);return false; is great for getting a fix and hanging curtains pictures and so on .Any way here are a few more pictures ,thanks for the input Negative or otherwise always welcome .But if I was after confrontation I would be on Teak door- lol lol .."

If the C-PAC tiles are so leaky for all of that hot air to escape... better watch out when the rains come pouring down. Seems that you need to have a long chat with some of their experts to better understand some of their excellent systems. The foil is NOT sealing off any of the tiles - it is there to reflect infra-red radiation, commonly known as radiant heat.

I note that you also do not mention the use of ceiling insulation. That must mean that you are also not installing such a necessary item?

[alanthebuilder]

"Hot air rises in case you missed that point in basic physics ,, exactly so why trap the hot air (this is my point) with foil , let the roof breath the with Cpak tiles the roof space is light ,you can see ! We have been using Q-Con blocks in Thailand for years as in Germany for heat reasons ,single skin is fine however we do ask the client on EVERY house would you like a double skin ,the Q-Con blockhttp://www.qcon.co.th" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false; is great for getting a fix and hanging curtains pictures and so on .Any way here are a few more pictures ,thanks for the input Negative or otherwise always welcome .But if I was after confrontation I would be on Teak door- lol lol .."

If the C-PAC tiles are so leaky for all of that hot air to escape... better watch out when the rains come pouring down. Seems that you need to have a long chat with some of their experts to better understand some of their excellent systems. The foil is NOT sealing off any of the tiles - it is there to reflect infra-red radiation, commonly known as radiant heat.

I note that you also do not mention the use of ceiling insulation. That must mean that you are also not installing such a necessary item?

If you don't care for reasoned comments and are unable to learn from those comments perhaps you need to stop posting self-serving and unpaid advertising in the forum. No confrontation intended but if you take it that way it is your problem.

C-pac monier are great never leak at all , brilliant tile , used them for years ,I do pay for advertising thanks ....I am gay friendly , Seems to me you are straight unfriendly ,never mind cant please them all !

[bbf-old]

More than a bit ouchy there aren't you? I've reviewed my posts and can find nothing about being unfriendly to anyone regarding their sexual identities... I was having a bit of wonder about you but I really didn't and don't care.

I question your building techniques as to giving your clients the best ways of keeping a cooler home. I guess that's straight unfriendly...

Surely hope that our paths do not cross during your visit to the North... but do have fun and enjoy yourselves while you are in the area. Am I being unfriendly for saying that?

[alanthebuilder]

Surely hope that our paths do not cross during your visit to the North ------ quote ---

If they did I think you would have a pleasant surprise ,Im a very easy going person ,I treat everyone with the same respect Rich man poor man beggar thief . I have no hang ups whatever national- Black white yellow red , or whatever else . Im generally chilled and very social like good food , ambient surroundings and having fun ! :happy7: , if we did meet I would be happy to but you a beer --- Thats me mate ...