Streetfield Posted March 2, 2023 Share Posted March 2, 2023 We have to install a front door with side light windows in an opening that has a cavity wall on one side and a steel galvanised post in the other (see photo) Don't ask why! But the issue I have is both from an aesthetic and insulation point of view what can we do. Plan is to install Aluminium casement fixed side lights that will butt up to the post and then an Aluminium Composite door. Link to comment Share on other sites More sharing options...
markc Posted March 2, 2023 Share Posted March 2, 2023 Can you do something with the post? Move it or at least encase it in insulation before fitting anything up to it. If not that post is going to sap heat and be a condensation nightmare Link to comment Share on other sites More sharing options...
Streetfield Posted March 3, 2023 Author Share Posted March 3, 2023 Thanks for your replies. Can't move post should have been mid cavity but screw up. Exactly my point is how best to insulate and clad/cover. When you look at new office/hotel builds etc they are all steel frames so must be a way to do it. Just wondered if anyone in the glazing window game could give pointers or help. Ta Link to comment Share on other sites More sharing options...
markc Posted March 3, 2023 Share Posted March 3, 2023 5 minutes ago, Streetfield said: Thanks for your replies. Can't move post should have been mid cavity but screw up. Exactly my point is how best to insulate and clad/cover. When you look at new office/hotel builds etc they are all steel frames so must be a way to do it. Just wondered if anyone in the glazing window game could give pointers or help. Ta Commercial buildings are rarely build with insulation in mind, however where possible steel structures are kept inside of curtain glass walling with only the fixings bridging outside to in. As you can’t move the post you will need to encase it in foam and then a decorative aluminium or composite outer. Link to comment Share on other sites More sharing options...
JohnMo Posted March 3, 2023 Share Posted March 3, 2023 How does the steel post align with the other wall/cavity. Can the post be outside the thermal envelope? Or is it in it? Your photo is not there? Link to comment Share on other sites More sharing options...
Jilly Posted March 3, 2023 Share Posted March 3, 2023 (edited) We clad a steel post with aerogel insulation and an aluminium outer skin. It looks ok and doesn’t seem to form a cold bridge. Edited March 3, 2023 by Jilly Link to comment Share on other sites More sharing options...
Streetfield Posted March 3, 2023 Author Share Posted March 3, 2023 2 hours ago, JohnMo said: How does the steel post align with the other wall/cavity. Can the post be outside the thermal envelope? Or is it in it? Your photo is not there? Link to comment Share on other sites More sharing options...
Streetfield Posted March 3, 2023 Author Share Posted March 3, 2023 2 hours ago, Jilly said: We clad a steel post with aerogel insulation and an aluminium outer skin. It looks ok and doesn’t seem to form a cold bridge. Link to comment Share on other sites More sharing options...
Streetfield Posted March 3, 2023 Author Share Posted March 3, 2023 Thanks Jilly, is this the thin gel like strip product that you can stick? Sure I have seen this before. So this sits as a break between your post and what? I guess the Aluminium window frame would be fine if we did this and screwed the frame to the post with the Aerogel between. Just need to sort aesthetic cladding then. 1 Link to comment Share on other sites More sharing options...
Streetfield Posted March 3, 2023 Author Share Posted March 3, 2023 20 minutes ago, Streetfield said: Link to comment Share on other sites More sharing options...
vfrdave Posted March 3, 2023 Share Posted March 3, 2023 I used this stuff on 2 corner window posts https://enviroform-insulation.com/product/steel-window-posts-lintels/ I believe others here used the same. 1 Link to comment Share on other sites More sharing options...
JohnMo Posted March 3, 2023 Share Posted March 3, 2023 So it looks like the post is inline with the outer skin of the building. So outside the thermal envelope. So not a cold bridge. Just looks a bit odd. So you need to infill, could you not just form a short return with brick block and cavity insulation, use a cavity closures on both sides insert window/door. Link to comment Share on other sites More sharing options...
Streetfield Posted March 6, 2023 Author Share Posted March 6, 2023 Hi JohnMo, thanks for taking the time to respond. Think this would work on the door side (large front opening) But the side is narrow as it stands so don't really want to make it any narrower. Thinking of using Aerogel strip. Windows being installed this week (not this part) so intend to run through in detail. Builder (shell build) decided to interpret engineers requirement for a steel post (don't know why we need it as it's a flat porch with warm roof. Thanks again. Link to comment Share on other sites More sharing options...
Dave Jones Posted March 6, 2023 Share Posted March 6, 2023 get a grinder and cut it out, looks totally pointless. 1 Link to comment Share on other sites More sharing options...
George Posted March 6, 2023 Share Posted March 6, 2023 I'm guessing some sort of windpost but looks like an odd place for it. Usually they are set into the inner leaf blockwork. It's not obvious how it supports the masonry. Link to comment Share on other sites More sharing options...
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