Browse Forums Heating, Cooling & Insulation 1 Jun 07, 2010 5:01 pm Do people get their garage roofs insulated? Is it worth it? We've got R4.0 throughout the house but I'm guessing doesn't include the garage. We also have wall insulation between the garage and house. Just wondering if it's worth adding insulation to the garage roof. Wouldn't it make the heat from summer longer to leave? or will it stop if coming in? The garage door would surely heat up (north facing). Any advice or thoughts? Life is; then you tell yourself a story. Re: Garage Insulation 2Jun 08, 2010 8:15 am Most builders, as far as I know, exclude garage roof by default. If you'll have access to the roof space above garage, I wouldn't upgrade it via the builder as you'd be able to add batts yourself at any time. It will be tight around the eaves and corners, but I think it's doable with a bit of patience, care and good protective clothing . Also, I read that you could "insulate" garage doors too (hope it's correct!). I suppose it would be done with some kind of sarking membrane, as it would obviously need to be flexible enough. Another DIY, or at least "doable at any time". The only thing I'd be looking to maximise is the wall insulation (a bit annoying having to remove plaster to fit it 'post-mortem'). Most builders, as far as I know, exclude external garage walls by default. They do insulate all walls between the garage and all other adjoining rooms of the house (even including utility rooms like toilets, laundries etc.). If I had another go, on top of the "default" wall insulation plan, I would additionally insulate walls between living areas/study/dining/kitchen etc. and any utility room which directly adjoins the garage or has other external walls. Gives that extra protection to the true living areas (which would normally be artifically heated/cooled) and softens temperature variations in them. That is, if you don't care too much about heat/cold from living areas not being able to transfer easily into those utility rooms ... Since your garage will get full sun, I think you can look at adding a whirly bird or two to its roof (regardless of having the batts or not, but especially if having them). Also heard of eaves vents, so if you have eaves on garage, that's another thing. For the situation that you described, I'd probably do all of the above (garage ceiling batts, vents, sarking on doors, even windows on garage walls, back doors to the garage (if possible)). Even roof tile sarking ... My signature is distracting people from my wise posts ... Re: Garage Insulation 3Jun 08, 2010 11:50 am If the walls dividing the Garage to the dwelling are insulated I would spend the money elsewhere. The Garage, if necessary, can be vented by opening the roller door. If there is a doorway into the home from the Garage then seal the jamb with foam strips & a sill closer to slow down any heat gain or loss. 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. 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 6207 |