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Showing results for tags 'thermal bridging'.
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Bought a new thermal camera the other week, and have since found a number of 'defects', or rather things i didn't realise would have been such an issue. I have 4 openings which have IG Cavity Steel lintels, non thermally broken, but they are insulated in between the cavity with polystyrene. It seems that now i'm well on my way to insulating everything in sight, this has become a much more obvious point of heat leak than it was before. The steel of the lintel is visible externally, I was going to glue some PVC trims to match the windows but never got round to it. I'm now thinking to use some form of insulation, and then make a box section out of PVC trims to hide that insulation, but what to use? It would have to be fairly thin, and i had a quick look at Aerogel Thermal Bridging Strips, but having never used it before not sure how well it would work in this scenario, and even it it would be suitable to be used externally (1 of the lintels is well hidden away from the elements, but the others are exposed). Other options are neoprene which i've got a part roll of, much like the aerogel strips its adhesive backed to stick to lintel, and should be fine to stick other things to it, in terms of the trim. What would you use for this purpose? -
Hi all, We are into a new build and have a very thermally efficient and airtight design but have been told by our SAP assessor that for the new Part L regs they cannot use standardised psi values as they used to in the past for the thermal bridging calculations of timber frame builds. They perhaps can work them out manually but this may work out to cost around £5k… I can’t imagine we are the first to do this since the new Part L regs came out and have been trying to find values from the structural timber association and our manufacturer as has the SAP assessor. Has anyone come across this before or have an idea on a source for these potentially? I have looked at other forums, there is an interesting one from 2021 on Part L but nothing that seems to help. Thanks -
One dimensional thinking
tonyshouse posted a topic in Energy Efficient & Sustainable Design Concepts
We can view plans in three dimensions, model buildings in hyperspace and take virtual tours. Yet we continue to calculate heat losses in one dimension. As insulation gets better the proportion of heat lost through thermal bridging increases, no one cares much.