If you look here arcachon
http://www.steel.com.au/products/coated ... sification
Stewie
Browse Forums General Discussion Re: Colorbond roof 22Jun 27, 2016 1:48 pm Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . Re: Colorbond roof 23Jun 27, 2016 2:21 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Colorbond roof 25Jun 27, 2016 9:30 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Colorbond roof 26Jun 28, 2016 12:03 am Stewie D Quote: I've heard people talk about a darker shade being hotter. Is their any data available on the variations between the colourbond colours on how much heat transfers through? If you look here arcachon http://www.steel.com.au/products/coated ... sification Stewie Thanks mate. Exactly the info I was after. Still have to wonder if there's a noticeable difference between heat absorption of 0.69 and 0.75 Re: Colorbond roof 27Jun 28, 2016 7:44 pm Difference? Yes, by the laws of physics. Noticeable? I'd seriously doubt it. I'd go with the colour you like rather than one you don't just for the sake of the low solar absorption. You can probably negate the marginal effect by upgrading your insulation and/or anticon. You look at your roof everyday, don't not like it. Re: Colorbond roof 28Jun 28, 2016 9:01 pm jas0nt Difference? Yes, by the laws of physics. Noticeable? I'd seriously doubt it. I'd go with the colour you like rather than one you don't just for the sake of the low solar absorption. You can probably negate the marginal effect by upgrading your insulation and/or anticon. You look at your roof everyday, don't not like it. Light coloured roofs have been found to reflect about 50% more heat than dark colours. Roof colour (light or dark) makes quite a substantial difference to the energy performance of a building, especially when we do JV3 assessments for non-residential buildings. I certainly wouldn't use the term "marginal". It's actually significant. Ask any tradie who has to climb onto a roof or into a roof space - certainly noticeable difference. You're correct in saying reflective sarking and additional insulation can make up for it in terms of heat gain inside, but this doesn't do anything for the bigger picture problem of urban heat island effect - which to be fair is more of a government policy issue rather than a personal one Re: Colorbond roof 29Jun 29, 2016 8:46 am Quote: Ask any tradie who has to climb onto a roof or into a roof space - certainly noticeable difference. I can vouch for that. Years ago I did a major reno and extension not far from here and after I'd finished they asked me to create a storage attic in the roof space. It was January and a pretty hot summer but I was waiting to get the go ahead for another job so said OK. We climbed up in the roof space and couldn't believe how hot it was up there. It was a dark coloured tile on the roof, really old sarking that had numerous holes in it and just stifling. The next day i bought my thermometer from home and hung it from one of the rafters. 52ºC. We ended up taking half a dozen tiles off the roof and cut a hole in the sarking to allow for a bit of ventilation. It was still a bugger of a job but bearable. Stewie Your house roof does not show rusting other than some surface rust on the flashings. In my opinion you dont need to replace or paint the roof other than treat surface rust… 1 10232 You should pressure clean your roof first and make sure the paint you buy also is anti mould. 4 18582 Hi all, Our boundary perimeter fences need replacing (3 sides). From everyone's experience, what would you install? Timber lapped and capped OR colorbond? Thank you. 0 2894 |