Anyone had internal insulation?

[fox_up_north]

I've got an end terrace house and, thanks to some posters on here, had second thoughts about solar.

 

House is bloody cold, though and built in 1800s. That limits what I can get done to either external (expensive) insulation or internal wall. Had a quote for internal that's coming up £85 per m2. Wouldn't get the whole house done, just a few rooms so it's looking around £4-6k (big rooms).

 

Has anyone had this done (or any insulation) and noticed an improvement to either the warmth of their home or general savings on heating? 

 

I'm aware of the risks of insulating an old property but there's guarantees with the work and what I've read online suggests internal is the best way to go, with a membrane. 

 

[kenny]

54 minutes ago, fox_up_north said:

I've got an end terrace house and, thanks to some posters on here, had second thoughts about solar.

 

House is bloody cold, though and built in 1800s. That limits what I can get done to either external (expensive) insulation or internal wall. Had a quote for internal that's coming up £85 per m2. Wouldn't get the whole house done, just a few rooms so it's looking around £4-6k (big rooms).

 

Has anyone had this done (or any insulation) and noticed an improvement to either the warmth of their home or general savings on heating? 

 

I'm aware of the risks of insulating an old property but there's guarantees with the work and what I've read online suggests internal is the best way to go, with a membrane. 

 

Can't offer advise, but start with the roof. You can do it yourself cheaply enough, you want a minimum of 300mm of quilt once you are done.

[fox_up_north]

Loft conversion was already done before I moved in, so that's not an option. Gets bloody warm up there! Can see why the previous owner made it his bedroom.

Edited 23 April 2022 by fox_up_north

[Bellend Sebastian]

Had about an inch of polystyrene sheet put behind the plasterboard on the outside wall when I had the back bedroom replastered (didn't mind losing the space as had some redundant boxed in pipework taken out that actually increased the useable floor space) and that room is definitely warmer than it was - it's too hot if the radiator's on any higher than it's lowest setting

[kenny]

29 minutes ago, Bellend Sebastian said:

Had about an inch of polystyrene sheet put behind the plasterboard on the outside wall when I had the back bedroom replastered (didn't mind losing the space as had some redundant boxed in pipework taken out that actually increased the useable floor space) and that room is definitely warmer than it was - it's too hot if the radiator's on any higher than it's lowest setting

If you are going to do it then use a celotex type material as it's considerably better than polystyrene.

 

Either material has the bonus of reducing the porosity of the walls which helps.

 

We bought our insulation from here which was very cheap compared to the merchant.

 

https://www.secondsandco.co.uk/

 

[Bellend Sebastian]

6 minutes ago, kenny said:

If you are going to do it then use a celotex type material as it's considerably better than polystyrene.

 

Either material has the bonus of reducing the porosity of the walls which helps.

 

We bought our insulation from here which was very cheap compared to the merchant.

 

https://www.secondsandco.co.uk/

 

The same bloke built our garden office and he definitely used Celotex in that, and it's amazing how that, a fairly insubstantial wooden structure, heats up quickly with the radiator on and retains the heat, it's clearly good stuff

[Crinklyfox]

2 hours ago, fox_up_north said:

I've got an end terrace house and, thanks to some posters on here, had second thoughts about solar.

 

House is bloody cold, though and built in 1800s. That limits what I can get done to either external (expensive) insulation or internal wall. Had a quote for internal that's coming up £85 per m2. Wouldn't get the whole house done, just a few rooms so it's looking around £4-6k (big rooms).

 

Has anyone had this done (or any insulation) and noticed an improvement to either the warmth of their home or general savings on heating? 

 

I'm aware of the risks of insulating an old property but there's guarantees with the work and what I've read online suggests internal is the best way to go, with a membrane. 

 

I had a bungalow once which was block/block construction.  It could get cold and damp so had cavity wall insulation installed.  It made a big difference to how well the bungalow retained its heat once warmed up and cut down the damp as well.

[The Fox Covert]

On 23/04/2022 at 08:29, fox_up_north said:

I've got an end terrace house and, thanks to some posters on here, had second thoughts about solar.

 

House is bloody cold, though and built in 1800s. That limits what I can get done to either external (expensive) insulation or internal wall. Had a quote for internal that's coming up £85 per m2. Wouldn't get the whole house done, just a few rooms so it's looking around £4-6k (big rooms).

 

Has anyone had this done (or any insulation) and noticed an improvement to either the warmth of their home or general savings on heating? 

 

I'm aware of the risks of insulating an old property but there's guarantees with the work and what I've read online suggests internal is the best way to go, with a membrane. 

 

I put internal insulation in my old property (1700s, and solid stone walls). The top floor was virtually uninhabitable in winter before I did it. I measured the temperature of the inside of all the external walls and put up 2x1 noggings, insulation and plasterboard and re-plaster over all the coldest walls (generally north and east facing). No membrane - should not be necessary with walls 20 inches thick. The small bedroom and the shower room on the top floor also got insulated false ceilings, as well as the loft insulation. Loft hatch also replaced with a moulded and insulated hatch door and frame. With new double glazed windows the result has been dramatic. Temperature outside just now 10 deg C. Temperature in the small bedroom, now my home office, on the cold side of the house until the afternoon sunshine gets onto it, is 22 deg C. No heating on for the last couple of weeks. Before the new windows the house was already warmer and less expensive to heat than my ex' house, similar age and construction but two-thirds the size.

[Daggers]

On 23/04/2022 at 08:29, fox_up_north said:

Anyone had internal insulation?

 

Only when I was young.