Browse Forums Heating, Cooling & Insulation Re: Cost of perfect insulation??! 43Apr 23, 2009 9:56 pm Using glasswool insulation is not the best GREEN option polyester batts are minimum 80% recycled and they are not degenerative. To answer your question at R2.5 the law of diminishing states most of the work is done. To go from R5.0 to a R4.0 to save $3,000 I dont think you will see the savings in your or your granchildrens lifetime. We used a smaller qld builder who went bankrupt about 12 months after completion of ours. It was a shame as they were good and relatively cheap and I would have used… 3 4619 I am saying that double brick has similar thermal performance due to thermal mass effect. It will be still very interesting to see the state of your framing after 10-15… 10 29737 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 11254 |