What cutting pliers are these?

[Iggifer]

But Rockwool does conduct heat. It just does it slower than air alone would do because of the small air gaps in-between the fibres. The heat has to conduct into the fibre, warm the small amount of air, then warm the next fibre etc.

Insulating in-between levels of a standard house has little to no benefit, if it's a maisonette, block of flats etc then yes. The only benefit in a normal house is sound deadening, but you can do this in other, more effective ways

 

[JohnW2]

It doesn't, who told you that?

Whether it does or not, it is a technique which has been used in various parts of my house (despite generally massive joists), most of which was built in the 19th century, and I see no reason why my house should be unique..

Kind Regards, John

 

[JohnW2]

Insulating in-between levels of a standard house has little to no benefit, if it's a maisonette, block of flats etc then yes. The only benefit in a normal house is sound deadening, but you can do this in other, more effective ways

It obviously depends to some extent on how one heats the various parts of the building. We generally maintain the upper floors of our house at a much lower temperature than the ground floor.

Kind Regards, John

 

[HawkEye244]

But Rockwool does conduct heat. It just does it slower than air alone would do because of the small air gaps in-between the fibres. The heat has to conduct into the fibre, warm the small amount of air, then warm the next fibre etc.

Insulating in-between levels of a standard house has little to no benefit, if it's a maisonette, block of flats etc then yes. The only benefit in a normal house is sound deadening, but you can do this in other, more effective ways

But sure we can agree that the time it takes to heat a room where all surfaces are insulated, versus the time is takes to heat a room where only external surfaces are insulated, would result in one 'hugging the heat' better than the other? This is what I have noticed anyway. Also, as JohnW2 mentions, some people prefer different temperatures throughout their home? Don't most people prefer their bedrooms to be slightly cooler than other areas, for example ?

 

[mwatsonxx]

Whether it does or not,

Does what?

it is a technique which has been used in various parts of my house

What technique?

I see no reason why my house should be unique

Neither do I

 

[EFLImpudence]

Does what?

Clearly whatever you were referring to when you said "It doesn't".

 

[HawkEye244]

Does what?



What technique?



Neither do I

You are either in or out of the thread. Choose one.

 

[winston1]

But sure we can agree that the time it takes to heat a room where all surfaces are insulated, versus the time is takes to heat a room where only external surfaces are insulated, would result in one 'hugging the heat' better than the other? This is what I have noticed anyway. Also, as JohnW2 mentions, some people prefer different temperatures throughout their home? Don't most people prefer their bedrooms to be slightly cooler than other areas, for example ?

Not if the other side of the uninsulated surfaces are being heated as well.

Of course if the bedrooms are cooler there is a tiny benefit but in practice the difference between bedroom temperature and elsewhere is only a few degrees.

 

[JohnW2]

Does what?

As EFLI has said, you are the one who wrote "It doesn't", so that may give you a clue.

What technique?

Using cement/mortar/concrete between joists (rather than wooden noggins etc.) to reduce twisting.

Kind Regards, John

 

[mwatsonxx]

Using cement/mortar/concrete between joists (rather than wooden noggins etc.) to reduce twisting.

It's not there to reduce twisting of anything, following the lead of Hawkeye was never going to be a good idea.

 

[mwatsonxx]

You are either in or out of the thread. Choose one.

When you own this site you can tell people what to do.

 

[JohnW2]

It's not there to reduce twisting of anything ...

I see - so what, in your expert opinion, was the purpose?

... following the lead of Hawkeye was never going to be a good idea.

I can be confident that the people who built my house were not doing that, since it was built many decades before he was born (and long before his house was built).

Kind Regards, John

 

[HawkEye244]

When you own this site you can tell people what to do.

I think you need to grow up and get a life.

 

[HawkEye244]

Not if the other side of the uninsulated surfaces are being heated as well.

Of course if the bedrooms are cooler there is a tiny benefit but in practice the difference between bedroom temperature and elsewhere is only a few degrees.

A few degrees makes the difference does it not? I can feel the difference between 21 and 24, for example. I suppose in a commercially it doesn't make economic sense (convenience, time and cost) perhaps not justified. But given the chance wouldn't you do it? I have, and would again.

 

[winston1]

No I wouldn't bother. Very little heat is lost with a 3 degree difference. Now a 23 degree difference to outside is another matter entirely.