Garage door insulation.

[Phil Pascoe]

I have an ordinary sheet steel up and over door - can anyone suggest something worthwhile to spray the inside with? Obviously I can't increase the weight significantly, but as my hands ('kin' diabetes) suffer more and more from the cold, every little would help. I don't look to spend a fortune as there are gaps around the door besides other thermal bridges, but I can't help thinking there must be something light and easy that would save a degree or two.
I've one of these coming this afternoon, I'll give the verdict on it shortly -
https://www.primrose.co.uk/firefly-18kw ... =list_name

 

[NazNomad]

I put one of these on the bottom of my garage door. it improved the chill-factor a lot AND stopped the flippin' leaves blowing under it.

http://www.screwfix.com/p/stormguard-ga ... 2-5m/29327

... and you might be able to use the similar brush-type seal on the sides?


Combine the draught-stopping with a heater and my garage is warmer than the house.

 

[Jonzjob]

I used something similar to this to insulate the roof of my workshop. It not only keeps the heat in but it keeps it out too and that's a real bonus here!

http://www.screwfix.com/p/ybs-thermawra ... -10m/9691p

The only difference I can see between this and mine is that mine has 3 layers of the foil. The main difference seems to be the price? Dead easy to fit though and hardly any weight.

 

[Hemsby]

I used this 25mm foam filled insulation from local B/Merchants cuts with Stanley knife glued to door with grip fill.



Fitted the brush strip from B&Q to door, stays in contact with door frame all around even at the pivot point The foam weighs virtually nothing and does not affect my electric door when opening/closing.

 

[Mike Jordan]

I did mine like Hemsby with 25mm and then pop riveted a sheet of 4mm ply wall boarding to the inside face.

 

[Phil Pascoe]

You didn't find the weight affected the opening and closing of the door?

 

[Mike Jordan]

Compared to the original weight of the 3.5M wide door the insulation and ply didn't add very much. The Counterballance springs mean that the door can be operated manually if required but it's fitted with an electric operator which has so far lasted over thirty years in regular use.

 

[stuartpaul]

I used this 25mm foam filled insulation from local B/Merchants cuts with Stanley knife glued to door with grip fill.

Fitted the brush strip from B&Q to door, stays in contact with door frame all around even at the pivot point The foam weighs virtually nothing and does not affect my electric door when opening/closing.

This is what I'm going to do with mine (both of them!). I was going to make some sort of demountable insulation 'wall' by gluing extratherm to OSB but don't think it's worth the extra expense.

I was wondering if that foil based insulation is as effective? I know it's claimed to be the equivalent of 35 mm PIR board but I can't help but think it just isn't as good.

 

[Jonzjob]

I checked my stuff and it's 5 layers of silver film not 3. Made in Grenoble and recommended for their winters. Temp there at the mo is -1ºC going to -4 tonight !! Not as cheap as some but better than most.

 

[Phil Pascoe]

Mine's a small single up and over - I suspect if I start to clad it with ply or similar it will become too heavy to open and close easily. It's also 43 years old and quite worn, so I don't want the thing falling apart. I think I might try to get some polystyrene/polyurethane about 1/2" thick so I can do between the corrugations first then put a layer over that. I shall certainly go for the draught excluder - there's a limit to what I can do around the door as being in a wheel chair it's the main entrance to the bungalow. I got the heater this afternoon - https://www.primrose.co.uk/firefly-18kw ... =list_name
it's a cracker. I have to mount it quite high anyway, so being tilted downwards it shouldn't catch too much dust. A quick blast from the Lidl vacuum will blow it clean anyway.

Thanks everyone for replying so far.

 

[RogerS]

....
I was wondering if that foil based insulation is as effective? I know it's claimed to be the equivalent of 35 mm PIR board but I can't help but think it just isn't as good.

You're right. It isn't.

 

[stuartpaul]

....
I was wondering if that foil based insulation is as effective? I know it's claimed to be the equivalent of 35 mm PIR board but I can't help but think it just isn't as good.

You're right. It isn't.

Is that based on direct experience Roger or have you researched further?

I'm just about to start dry lining a double garage and if this stuff (or similar) is as good as they say I might save myself some time, money and effort compared to extratherm.

Sorry Phil for a slight (but related) hijack!

 

[Phil Pascoe]

Don't worry about the hijack - occasionally I've got more info from threads that have meandered than ones that haven't.
http://www.secondsandco.co.uk/ are always worth a look for insulation. Because my garage is an integral part of the bungalow with only a single four inch block wall between them :shock: the first thing I did was use 4" Kingspan then clad with 18mm shuttering ply - we could feel the difference indoors in 48 hours.

 

[stuartpaul]

Phil, - interestingly the price difference between the seconds and 'new' appears to be little more than pennies. I wonder if the current shortage of chemicals is having an impact? It certainly is on lead times, as much as three weeks plus from some suppliers.

 

[Phil Pascoe]

It much depends what they have at any given time. My stuff although sold as seconds was new, and was way cheaper than buying new around here. I think they just take large manufacturers over production.