OneMoreFarang Posted February 16 Share Posted February 16 I have this hole in the wall to outside with cables for the ACs. This is in a high floor condominium. We don't have rats or any other such animals outside on the high floors. I want to close it for better isolation. What is the best way to do this? Should I use PU foam spray? Any other ideas? Link to comment Share on other sites More sharing options...
Popular Post rgrdns Posted February 16 Popular Post Share Posted February 16 (edited) I suggest filled up with "insulation wool", easy to remove when u need to replace the aircon(s) Edited February 16 by rgrdns 3 Link to comment Share on other sites More sharing options...
Popular Post Artisi Posted February 16 Popular Post Share Posted February 16 Can you access the "hole" from both sides, if yes I would suggest expanding foam that can then be trimmed up after curing. 3 1 2 Link to comment Share on other sites More sharing options...
OneMoreFarang Posted February 16 Author Share Posted February 16 1 hour ago, Artisi said: Can you access the "hole" from both sides, if yes I would suggest expanding foam that can then be trimmed up after curing. In theory it's possible that someone can do that. But I am not brave enough to do that at about 100m height. 1 Link to comment Share on other sites More sharing options...
OneMoreFarang Posted February 16 Author Share Posted February 16 1 hour ago, rgrdns said: I suggest filled up with "insulation wool", easy to remove when u need to replace the aircon(s) Thanks, that sounds like a good idea. The ACs are new, and likely I will be able to use the same cables again even with new ACs. But in principle I like when things are service friendly. And isolation wool is certainly easier to remove compared to stiff foam. Link to comment Share on other sites More sharing options...
brianthainess Posted February 17 Share Posted February 17 A 100m high jeeze is it a condo? that would be like 25 floors high. Link to comment Share on other sites More sharing options...
OneMoreFarang Posted February 17 Author Share Posted February 17 1 hour ago, brianthainess said: A 100m high jeeze is it a condo? that would be like 25 floors high. Imagine, there are even condominiums with 30 or 40 floors and even more... 1 1 Link to comment Share on other sites More sharing options...
sandyf Posted February 17 Share Posted February 17 On 2/16/2024 at 9:33 AM, OneMoreFarang said: Thanks, that sounds like a good idea. The ACs are new, and likely I will be able to use the same cables again even with new ACs. But in principle I like when things are service friendly. And isolation wool is certainly easier to remove compared to stiff foam. There wouldn't be much problem removing the foam, breaks up quite easily. The bigger problem with the foam is getting it into the hole. The can is above the spray nozzle and upright, with aircon being close to the ceiling it can be difficult to get good access to the hole. When I did mine I sprayed on to a trowel and then filled the hole. 1 Link to comment Share on other sites More sharing options...
brianthainess Posted February 17 Share Posted February 17 2 hours ago, OneMoreFarang said: Imagine, there are even condominiums with 30 or 40 floors and even more... Did you use a crane to take the photo? Link to comment Share on other sites More sharing options...
JeffersLos Posted February 17 Share Posted February 17 What a sad photo that is. Not one piece of nature available to the naked eye. Just concrete, glass, and about one million people. You could cover the hole with tape, then move onto the windows. 1 Link to comment Share on other sites More sharing options...
Ben Zioner Posted February 17 Share Posted February 17 On 2/16/2024 at 9:33 AM, OneMoreFarang said: And isolation wool is certainly easier to remove compared to stiff foam. What is "stiff foam"? Some product they use in funeral parlors? 1 Link to comment Share on other sites More sharing options...
ThaiFelix Posted February 18 Share Posted February 18 17 hours ago, Ben Zioner said: What is "stiff foam"? Some product they use in funeral parlors? or used in soapy massages? Link to comment Share on other sites More sharing options...
RayWright Posted February 18 Share Posted February 18 Not done a 100m high fill before, but would use a fire rated expanding foam over insulation wool. Logic being, easier for weathering to remove the wool on the outside creating a niche for further avian erosion for nesting. Would second @sandyf's trowel idea or wear a plastic glove to build up the hole rather than just nozzle it. 2 Link to comment Share on other sites More sharing options...
VocalNeal Posted February 18 Share Posted February 18 💡 Stick a large balloon in the hole and fill the balloon with foam. Link to comment Share on other sites More sharing options...
Expat4life66 Posted February 18 Share Posted February 18 23 hours ago, brianthainess said: Did you use a crane to take the photo? Looks like the view from Marriott 57 Octave roof bar Link to comment Share on other sites More sharing options...
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