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Should pipes in attic be lagged before insulation or is it not worth the effort?
Cavitywalladvice
Posts: 18 Forumite
https://imgur.com/a/7YbsG
I could do this in an afternoon but if the whole thing will be covered by insulation is there any point?
I could do this in an afternoon but if the whole thing will be covered by insulation is there any point?
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If the insulation is going over the pipes, that is lagging!I used to be indecisive but now I am not sure.0
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If the pipes are going to be under the insulation then there is no point in lagging them. You only need to lag them if they are going to be above the insulation as the roof space will be colder once the floor of the roof is lagged. I haven't increased the insulation in my roof for this reason.0
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But remember to insulate around your tank (if you have one), but not under it. Insultate the tank cover too..
If there is wiring up there (feeding the ceiling ights below?) I was told these should be on top of the insulation, though I'm not sure why. Maybe for access?0 -
Thanks that saves me an afternoon! I took out the old tanks but there is the boiler up there, but sounds like I'll have to find these wires now!0
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But remember to insulate around your tank (if you have one), but not under it. Insultate the tank cover too..
If there is wiring up there (feeding the ceiling ights below?) I was told these should be on top of the insulation, though I'm not sure why. Maybe for access?
I believe it's because : 1. the wiring does get hot under load, and the insulation exacerbates this, 2. it's easier to damage it against the rafters when walking/overboarding, and 3. any damage is visible, not hidden.
Mind you, I suspect there are another five reasons....0 -
OP. If there is a short run of hot piping, lagging is still worth it for the heat gain at the gap when you initially run water. It's certainly worth it for any pipes close to a cold spot - outside wall or roof edge.0
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OP. If there is a short run of hot piping, lagging is still worth it for the heat gain at the gap when you initially run water.
I would have thought that it would be best not to lag hot water pipes as you want the heat from those pipes to stop the cold water pipes from freezing.0 -
But remember to insulate around your tank (if you have one), but not under it. Insultate the tank cover too..
If there is wiring up there (feeding the ceiling ights below?) I was told these should be on top of the insulation, though I'm not sure why. Maybe for access?
Don't forget there should be fire hoods over spotlights.Make £2025 in 2025
Prolific £841.95, Octopoints £6.64, TCB £456.58, Tesco Clubcard challenges £89.90, Misc Sales £321, Airtime £60, Shopmium £52.74, Everup £95.64 Zopa CB £30
Total (1/11/25) £1954.45/£2025 96%
Make £2024 in 2024
Prolific £907.37, Chase Int £59.97, Chase roundup int £3.55, Chase CB £122.88, Roadkill £1.30, Octopus ref £50, Octopoints £70.46, TCB £112.03, Shopmium £3, Iceland £4, Ipsos £20, Misc Sales £55.44Total £1410/£2024 70%Make £2023 in 2023 Total: £2606.33/£2023 128.8%0
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