Aluminum foil in the wall

[Thomas_Blekinge]

#25

I wrote that the radiation doesn't reach the foil, and that is true. But of course, heat can be transported via conduction to the foil, and that is something entirely different that I've tried to explain to you in #27. Strange that everyone else here understands it.
End of discussion.

 

[Tomture61]

I wrote that the radiation does not reach the foil and that's true. But of course, heat can be transported by means of conduction to the foil, and that is something entirely different, which I have tried to explain to you in #27. Strange that everyone else here understands that.
End of discussion.

It can be difficult to understand you when in one breath you explain that thermal radiation cannot pass through wood panels or similar materials.
In the next breath, it does.
Make up your mind 🙄
It's more upright to admit when you're wrong.
Did it myself regarding insulating both sides of aluminum foil.

 

[Rickard.]

Not for thermal radiation, however, it is an excellent vapor barrier with fantastic age resistance, so I believe more in that direction.
That is, the predecessor to the plastic we use today. There are still some insulation materials coated with metal foil.

I agree with you, that is an early air and vapor barrier.
Aluminum foil is still used as a vapor barrier, although perhaps not in this form in extremely humid environments with high demands, e.g. certain swimming pool constructions, so it certainly works.

 

[makhno_]

Hi, we are renovating a large room on the top floor. There was wood paneling throughout the room, but now the plan is to put up regular drywall. Under the wood paneling, there was first a layer of aluminum foil, then a layer of plastic, and then insulation. The question is, should we put aluminum foil there again?

It looks like high-quality knot-free paneling that you're thinking of replacing with drywall. Check what it costs new before you tear it down.

 

[Fotografen]

It can be difficult to understand you when in one breath you explain that radiant heat cannot go through wooden paneling or the like.
In the next breath, it does.
Which is it? 🙄
It's more upright to admit when you are wrong.
I did it myself regarding insulating both sides of aluminum foil.

Try to understand the difference between conduction and IR radiation.

 

[cpalm]

Check what it costs new before you tear it down.

I had the same thought, but... It's frightening how many exclusive and high-end materials are thrown away at the dump and replaced with the cheapest possible stuff.