Garage Door Insulation

[Rockape]

My bedroom is above a large single garage. Garage has a single up and over door and a normal door at the other end leading to the garden. The bedroom is a good bit cooler that the other rooms in the house moreso I feel when it's windy outside.

I want to get something to insulate the up and over garage door. I know that insulating sheets can be purchased for the inside of the door, but these won't seal around the edge of the door. I was thinking of hanging a thick curtain over the door, that way the edges would be covered too and prevent any draught getting round the door.

Anyone else have any ideas?

[Simpo Two]

How about replacing the door with two side-hinged ones? Then they will have decent thickness and you can draught-proof the sides like a normal door.

[schmokin1]

i'd be thinking about insulating the garage ceiling/your bedroom floor. An unheated garage below is a big heat sink....

[Busamav]

Insulate the garage ceiling if you want to see a difference.

Screw 100mm Celotex boards to the existing ceiling .

[neilsie]

as above, insulate the floor.

in addition, if you're door doesn't fit fully, (like mine), then cover the gaps.

i used damp proof membrane - reduces the wind anyway - and screwed it to the door.

such as this :http://www.screwfix.com/prods/83999/Building/Damp-Proof/Damp-Proof-Course-225mm;jsessionid=GX4VQZUGK332ECSTHZPCFFQ

[King Herald]

Busamav said:

Insulate the garage ceiling if you want to see a difference.

Screw 100mm Celotex boards to the existing ceiling .

This gets my vote too. If the garage is not heated then keeping the draughts out of it will make little or no difference to the room upstairs.

Maybe even add some insulation under the carpet of the room too?

[HiRich]

Another for insulation between the rafters first. It's a good policy to think in terms of keeping the heat in - so prioritise actions closest to the centre of heat (your room). Also, it sounds like quite an easy job to attempt.

After that, you may be able to do a couple of things. First, check the garage for ventilation bricks - if they are there, you are also a bit jiggered.

Next, take a good look at that garden door. On a new build there's a good chance the door frame is not sealed to the brickwork. Expanding foam (apply with care) and/or a cartridge of exterior flexible filler will fill it. Be generous with the filler and accept that it will be a bit messy against the brickwork.
Now run your hand around the frame, feeling for draughts between door and frame. There are several things at the DIY store that will fill larger and smaller gaps:

• Rubber self-adhesive sections (use only in compression, not in shear)
• Nail-on strips for very thin gaps and in shear)
• Brush strips along the bottom of the door.

While you're at it, repeat for the door into the house presuming there is one. Good practice anyway, but iwhen the garden door is on the leeward side, cold air coming in through the garage door will instead try to get in the house.

For the up-and-over garage door, there are some basic things you can do about draughtproofing:

• Seal the frame to the brickwork with foam/filler as above.
• There's an opportunity on the vertical sides for using the same rubber sections as above. If the gaps are too small, also get the self-adhesive sponge. This isn't good for normal doors but works better on these garage doors.
• Along the bottom, you could fit the same brush strips, mounted to the inside lip of the door. Probably easiest to pop rivet it to the door.

[PPPPPP]

Busamav said:

Insulate the garage ceiling if you want to see a difference.

Screw 100mm Celotex boards to the existing ceiling .

If that's too expensive or difficult to install, then thermal insulationm foil rolls are an alternative:

http://www.wickes.co.uk/invt/210022?WT.ac=SP28031

[anonymous-user]

Definately going to get better results by insulating the floor/ceiling.