Browse Forums Renovation + Home Improvement Re: Roof Insulation 4Aug 24, 2020 12:52 pm TheMasta Hi! I used sprayed insulation AUSFOAM 30 for my roof. The benefits: "Duct leakage and heat loss or gain from ducts are much less of an issue. Air sealing is easier in the roof than in the ceiling. Dust and loose insulation are less likely to migrate down to the living space. Energy costs are lower when the attic is sealed." Howdy, This all depends on your opinion relating to whether or not to ventilate your roof cavity though. Personally I would rather ventilate rather than air seal the roof. Sealing the ceiling plaster/top plates etc is not difficult especially if the insulation is out. You basically do what I did and go around with many tubes of proper silicon caulk and fill up any gaps in top plates for electrical, plumbing etc and then joins between plasterboard and top plates. Sealing your roof would then involve careful setup for things like air extraction fans to the outside etc. There are plenty of resources online looking at the building science of ventilating roof spaces. Worth reading up I reckon. --------------------------------------------------------------------- Check our Homeone build blog here 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 29740 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 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 6173 |