Browse Forums Heating, Cooling & Insulation 1 May 13, 2010 11:01 am We are in cool climate and it can get up to minus 5. We only have floorboards and chipboard underneath. The work space under the house is about 50 cm in some instances less. I heard of a insulation, which is white and you only put beneath the joists and you fix it every now and then with special nails. I forgot about the brand name does anyone know what I am talking about? And how is the insulation value compared to the usual yellow bats? Otherwise it would be the yellow or pink bats nailed up with chicken wire, how do you nail it up most efficient? Is it really worthwhile doing yourself or don't you save much? Re: Underfloor insulation 5May 13, 2010 1:57 pm you could also use insulfoam. It is a fantastic product but a bit more $$$ than batts. "I never learned a thing until I finished school" - Unknown "You can get anything accomplished, If you don't mind who gets the credit" - Ned Hay Re: Underfloor insulation 6May 13, 2010 2:04 pm You can use normal batts & chicken wire. It has been done many many times as is very effective. An alternative is the polyester (white!!) insulation in a roll. Measure the gap between the joists and select the rioght width roll. That way it will fit snuggly and you wont have much problem stringing in some wire to hold it in place long term. One brand that comes to mind is 'cosyfloor'. Re: Underfloor insulation 8May 31, 2010 2:28 pm In the end the expol is OK but not as good as I thought. It does not fit as snuggly in as the yellow or pink bats. sometimes the joists are wider than they should be and it falls out and you have to fix it otherwise. The cuts are approx. 0.5 cm apart that means that leaving it might be to wide to get it in without breakage and if you cut then it is too narrow. The material is much more expensive than the bats. There are as well bats you can staple up. And you get a thicker insulation for the same price. But bats soak moisture, foam does not. There are pros and cons. Re: Underfloor insulation 10Jun 03, 2010 4:15 pm Unless you can 'seal' off the area from mice & / or rats, I wouldn't use a batt type insulation. Peter Clarkson - AusDesign Australia www.ausdesign.com.au This information is intended to provide general information only. It does not purport to be a comprehensive advice. 1 10136 Hey guys building a new place through a volume builder and just wondering if i should complain to the site supervisor as we just had plasterboard installed. Looks like… 0 11277 1000000% definitely add insulation. I have in my home and it makes a big difference minimising sound transfer. Insulation is pretty cheap and definitely worth it 2 6208 |