Insulation external man hole cover?

[PDHana]

Hi All

My outside water supply froze last year

I need to insulate the man hole cover.

Should I use kingspan or polystyrene sheets (wrapped in plastic sheeting to weatherproof) and then weighted down.

Any advice please?

Many Thanks, Paul.

 

[Charnwood]

Buy a cylinder jacket or tank lagging set and stuff it in the hole.

 

[PDHana]

Cylinder jacket - brilliant idea - is this a common solution for man hole insulation?

 

[Charnwood]

It's one I've used in the past, but I just use common sense, not knowledge acrued at a technical college, on day release etc.

You say manhole cover, but do you mean stop tap box, roughly 6 to 8 inches square?
Something similar to:

 

[Onetap]

Cylinder jacket - brilliant idea - is this a common solution for man hole insulation?

Daft idea; it's mineral fibre and will become water-logged, worse than no insulation. Polystyrene or Kingspan is a better plan.

 

[PDHana]

it's a proper man hole - 30 inches by 24 inches - approximately.

 

[Nige F]

It's one I've used in the past, but I just use common sense, not knowledge acrued at a technical college, on day release etc.

]

why buy a cyl. jkt . fill it with straw - or bracken gathered from the Forest - like I do

 

[sooey]

Or fast setting cement..for non payers.