Browse Forums Heating, Cooling & Insulation 1 Jun 08, 2015 12:36 pm My builder proposed installing a 50mm anticon blanket rather than sarking for my concrete tiled roof. My research tells me that Anticon is typically used for metal roofs, e.g Colorbond, but not concrete roofs? My question is, would Anticon be unnecessary for concrete roofs and should I opt for sarking instead? My ceiling insulation will be R5. Re: Anticon versus sarking for concrete tiled roof 3Jun 08, 2015 2:35 pm goody59 I would go anticon if he is throwing it in at no extra cost. No extra cost... you would have more chance of winning Lotto! Re: Anticon versus sarking for concrete tiled roof 5Jun 08, 2015 3:10 pm Quote: My research tells me that Anticon is typically used for metal roofs, e.g Colorbond, but not concrete roofs? I did a quick check of roofing insulation installation guidelines (from their manufacturers websites) and could find no references to using a blanket under tiled roofs. The examples showed the blanket being used under metal roofs only. I don't know how one would install a blanket under a tiled roof. Maybe someone else on this forum knows. Normally sarking is installed under the tile battens for a tiled roof but a blanket is installed over the purlins for a sheet metal roof. Re: Anticon versus sarking for concrete tiled roof 6Jun 08, 2015 4:00 pm Thanks Beetaloo. That is what I first thought. However, this link says: "Anticon Blanket is designed to provide efficient acoustic & thermal insulation as well as condensation control under metal deck, fibre cement and concrete roofs in residential or commercial applications." http://bradfordinsulation.com.au/~/medi ... sheet.ashx Re: Anticon versus sarking for concrete tiled roof 9Jun 08, 2015 5:33 pm Quote: "Anticon Blanket is designed to provide efficient acoustic & thermal insulation as well as condensation control under metal deck, fibre cement and concrete roofs in residential or commercial applications." I read that to mean concrete slab (not tiles). I would phone an insulation company to clarify the matter. Re: Anticon versus sarking for concrete tiled roof 12Jun 26, 2015 9:48 am I agree. Anything that helps keep the hot summer sun out of your roof space is worth it. Condensation under a concrete tiled roof really doesn't come into the equation. The roof tiles are porous plus their overlapping means there is a lot of entry point for air so you are not going to get the same temperature differential as a metal roof. Condensation forms when warm air ( ceiling space ) meets a cold surface ( sheet metal roofing ). Sarking will prevent some heat entry but the Anticon blanket would keep it a lot cooler. Stewie Re: Anticon versus sarking for concrete tiled roof 13Jun 26, 2015 5:35 pm I've actually got the same question so I wonder what you found out @jas0nt? I think my builder has made a slight mistake - we originally opted for Colorbond roof and got the Anticon blanket in lieu or sarking. But then we changed our minds and went with concrete tiles (Monier Horizon) as it looks a lot better with the rest of the external house design. However now looking at the building plans, it states that they will provide tiles and Anticon blanket. I'm happy to leave this as-is if it's considered better, but I wonder like @Beetaloo if this will actually work? I also read the brochure as Anticon being suitable for concrete slabs, rather than concrete tiles. So I'm a bit confused! Re: Anticon versus sarking for concrete tiled roof 14Jun 27, 2015 10:49 am Hi Cremorne, I emailed four different insulation companies (including a product manager at Boral) and everyone came back and said tiles = sarking; Colorbond = anticon. Concrete tiles + anticon won't physically fit, so I assume your builder will default to sarking instead. Might want to edit this in your contract as Anticon typically costs more than sarking. Hope that helps! Re: Anticon versus sarking for concrete tiled roof 15Jun 27, 2015 1:06 pm @jas0nt It does! Thanks very much! Re: Anticon versus sarking for concrete tiled roof 16Jul 07, 2019 12:39 pm Having bought an old hovel with timber roofing and good ceramic tiles, I learned to my horror, that the timber had "delignified", meaning "de-wooded". Great! What that says is, that despite the best roofers, rain gets in over the years under the tiles and rots the wood. Mind you, if you are one of the wrinklies over the magic average age of 73, ask yourself how long you are going to live in that joint, before you find a sucker like myself to take it off your hands slightly damaged! So some of a blanket is recommended for longer life. No, I even have sections of narrowness where the tiles won't slide up any further. When I manage some spare time, I might play around with the first DIY part of my… 7 4932 Building Standards; Getting It Right! Hi all I’m in VIC and had some storm damage in my garage a month ago. Gutter found not fit for purpose. Insurance company saying the guttering and flashing to be fixed… 0 11714 Thank you so much. We ended going with the terrain that’s part of our brick. 2 2539 |