Options for insulating up and over garage door

[Stuart BridgerParticipant @stuartbridger82290]

My workshop is an a single garage with a single skin aluminium up and over door. Any ideas for the best way to insulate? I don't want to add too much weight or additional thickness to the door, and it still needs to function. 50mm Celotex seems one option, or perhaps bubble foil secured with battens. Another slightly off the wall solution would be to panel the door with a thin sheet and then fill the gap with expanding foam? Any suggestions would be appreciated.

[Stuart BridgerParticipant @stuartbridger82290]

[JasonBModerator @jasonb]

I used Celotex on mine.

[Bob Brown 1Participant @bobbrown1]

I would use Celotex and I would use one thickness to infill the panel and then may be overlay with another layer, I would stick them on using the foam as used to attach plasterboard to walls e.g. this stuff **LINK**

If you try expanding foam on it's own you'll probably get in a right mess as it is sticky stuff and does not come off very easily.

Do not forget to seal around the door with a weather strip.

Bob

[Anonymous]

Posted by JasonB on 13/12/2014 10:15:11:

I used Celotex on mine.

Me too – Andrew

[Stephen BensonParticipant @stephenbenson75261]

Does that help or hinder condensation? my guess is it would would increase humidity but it would be nice to know

[mechman48Participant @mechman48]

I have a roll up panel door & I have used 25mm Celotex/similar panels to infill each panel with Duct tape covering the joints, plus have used a panel stuck to the entry door, all attached with ' No Nails' adhesive ( usual disclaimer ), certainly makes a difference to the temp, plus other Celotex panels behind the OSB boarding on the walls & space blanket in the roof area. Last nights temp was – 3* outside, inside the garage is + 6*… nicely above dew point, An hour with the 2 oil rads on – one at ea. end & it gets up to a comfy 14* – 15*C ( approx 58* – 60* F )… weather strip around the door frame & compressible strip on the bottom… sorted. Will check again later today as it's forecast to be cold all day.

George

Edited By mechman48 on 13/12/2014 10:47:28

[Stuart BridgerParticipant @stuartbridger82290]

Thanks all , looks like Celotex is the answer then.

Edited By Stuart Bridger on 13/12/2014 11:39:36

[mechman48Participant @mechman48]

A couple of pics of door insulation…Panels are foil covered both sides

Entry door…

Some floor covering.. still need more, which would raise temp up another degree or two..& one of the oil rads..

Outside temp 1*C (Lunchtime..according to local area website).. inside temp.. 4/5* C

George.

Edited By mechman48 on 13/12/2014 12:21:22

[BazyleParticipant @bazyle]

After fitting the celotex either completely seal each section with tape as above or use expanding foam ato effect a complete seal in the awkward corners where tape won't work. If you leave even a small hole moist air goes in, condenses and more goes in building up a significant amount of water that must then wait until summer to evaporate.

[CirclipParticipant @circlip]

VW used to think injecting foam between the wing panels on the original injected "Passat" was a good idea too. Proved to be excellent at rotting the panels. A decent coating of a bituminous paint or even Waxoyl (can you still get these??) onto the metal before bunging on the foam panels may help.

Regards Ian.

[Author]

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