Home & Garden Ceiling insulation

Hi everyone,
Just a quick question. We are building a small house and are wanting to know if anyone has had experience purchasing ceiling insulation in Dumaguete or Tanjay area to reduce ambient heat from the roof to reduce power costs?

Thanks in advance!

 

Thanks, very helpful. It's amazing how few people we have spoken to around where we are building have even considered insulation and don't know where to access the materials, including an architect!

 

A cheap effective insulation is rice hulls (husks).
Ask @DAVE1952 he has good information.

 

I built a small house and the whole unit is insulated, the walls were constructed using metal GI steel studs clad with Hardieflex and the cavity in between was filled with Rice Hulls just as SP said, I also used a High Grade uPVC (Imac roofing) for my roof panels and the heat transfer through them are likely to be 90% less than through metal sheets, it also helps to have them light coloured my roof is a light shade of cream {using Tin on roofs in Dark colours is just fecking dumb to me) there is no insulation on the underside of these sheets this is not required, but just to be sure about this, above the actual house ceilings is a 2inch layer of Rice Hulls, which meet the US building code for an insulation material. One bag of Hulls cost P60 delivered and will cover an area of 8x4ft at 2inch in depth.

Venting the Attic at a high point allows the hot air to escape from it.

If you have or intend to build with useless CHB as most people do? you will find these take up a lot of heat during the day, in the evening when it gets cooler these are still giving off that heat and continue this well into the night, added to that, most people killed in an earthquake are most likely to have been struck with falling masonry, CHB construction and especially the way that most houses are built in these present times are not very resilient in a Quake.

 

Above you will see an example of a vented roof, a few openings in the eaves are not adequate in my opinion?

 

If you are still with that landlord, would it be possible to find out the name of the installers as I am sure many here would like to buy this insulation system that soon pays for itself.

 

If what you are describing is the READILY available foam insulation with either one or both sides coated with foil, this comes in 5 and 10mm thicknesses, after time all foam material breaks down with the heat and turns to dust. Know of someone who bought the one-sided foil coated foam insulation, had this installed in his new build just under the roof sheets, with the foil on the topside to reflect the heat upwards, after 3yrs only the foil was left, all the foam having turned to dust, all his roofing had to be taken off, the insulation replaced with Rockwool and new steel sheeting installed.

Rockwool or Mineral wool is available if you hunt for it, a place to try is Zenith or the sister company Jay marketing, in my opinion any insulation material that is a mere 10mm in thickness cannot be all that effective and not worth the time and effort to install, perhaps in your case the foil was the improved factor? the very minimum required for effective insulation is 50mm, 100mm is better still.