As I inherited a project part way through it is time to put the ceiling up in the house, the classy blue tin roof makes the place feel like a furnace in the sun, even the moistened bint says

I've used a couple of things. If your roof is such that you can do it, putting foil covered paper underneath the roof reflects the heat back up and cuts way down on the heat that comes through. I've used it on a porch that just had dark concrete tiles overhead. I slid the foil underneath the cross support rafters. You could feel quite a difference walking from the area without it to the area that had it. It comes in rolls about a meter wide. I can't remember what I paid for it but it wasn't terribly expensive.

If you're going to put in air conditioning too then you need the fiberglass insulation or something similar to keep the cool in. I've used the foil covered 4" batts that come in 20" wide rolls. I laid it on the ceiling in 3 normal sized bedrooms for about 5,000 baht total. Even without the AC on it made the rooms noticeably cooler. Electric cost went down too.

Hi Fremmel,

Where did you buy the foil covered 4" batts that come in 20" wide rolls and the foil covered paper?

Thanks

The foil covered batts I got at HomePro. They were 275 a roll 5 months ago. I can't remember for sure how long they were but I think 4 meters. They have different thicknesses as well. I think sometimes they have them at Global too. I've seen them on sale at HomePro for less - after I bought them, of course.

The foil covered paper I got at HomePro but it was the one in Pattaya. I would expect them to have it here but if they don't they should be able to order it. By the way I just measured the end of the roll I have and it's actually 4 ft. wide, not 1 meter.

Forget about Global, the selection isn't very good. HomePro and HomeMart. Every now and then there on sale. And they do come in 4 meter rolls and various thicknesses.