Stone Passive house

gawa11

Hey guys, i am looking to build a passive standard house or as close as possible but it must have a stone exterior. 
Does anyone know what options are out there. 
Am I restricted to needing a cavity wall design to take the stone which makes passive standard very difficult to achieve.

B-D-P--

Why not build as normal, and stone face it after?

gawa1982

Passive house are normally built with timber frame or external insulation, but i cant see anyway of stone facing these wall types. Normal cavity build can be stone faced but very difficult to get to a passive standard because of the cold bridging.

who what when

gawa1982 wrote: »

Passive house are normally built with timber frame or external insulation, but i cant see anyway of stone facing these wall types. Normal cavity build can be stone faced but very difficult to get to a passive standard because of the cold bridging.

Timber frame houses typically have an external masonry leaf which can be clad with stone.

B-D-P--

What about these,
Its not the real deal, but looks good, 1inch stone over yur outer skin.
https://www.fernhillstone.com

gawa1982

thanks, i think i need to look further into sips panels with an masonry leaf which i could stone clad, probably the best option

BryanF

gawa1982 wrote: »

1. Passive house are normally built with timber frame or external insulation,
2. but i cant see anyway of stone facing these wall types.
3. Normal cavity build can be stone faced
4. but very difficult to get to a passive standard because of the cold bridging.

1. untrue
2. Untrue
3. True
4. Untrue

BryanF

gawa11 wrote: »

1. Hey guys, i am looking to build a passive standard house or as close as possible but it must have a stone exterior. 
2. Does anyone know what options are out there. 
3. Am I restricted to needing a cavity wall design to take the stone
4. which makes passive standard very difficult to achieve.

1. So your not really going to build a passive house. Just tell people your house was nearly a passive house, but isn’t rally a passive house
2. There are loads of options, why not contact one of the many passive house consultants operating in Ireland
3. No but a cavity with stone facing would be a good idea
4. Untrue

Grab All Association

Just build a standard concrete house. The house will outlive your great great grandchildren. It’s not as expensive as you think. None of this Duncan Stewart fruity houses.

gawa1982

1. I don't care about being certified just want to get a low energy house
2. What are these options you speak of?
3/4. Certainly possible to have a passive house cavity wall, but the cold bridging does seem more difficult to get around

BryanF

2. Name a construction method
3. Untrue. There are thermal bridge free details achieveable for most building methods

gawa1982

External wall insulation, I havnt been able to find a stone cladding system suitable for this?

For instance at the floor/wall bridge, all details I have seen use an aerated block block the dpc, but the performance of this in wet conditions doesnt seem great. I suppose the best detail here is an insulated foundation slab.

BryanF

gawa1982 wrote: »

1. External wall insulation, I havnt been able to find a stone cladding system suitable for this?

2. For instance at the floor/wall bridge, all details I have seen use an aerated block block the dpc, but the performance of this in wet conditions doesnt seem great.
3. I suppose the best detail here is an insulated foundation slab.

1. Yes, similar to brick slips.
2. Plenty of other options http://www.marmox.co.uk/products/thermoblock.
3. Insulated foundation systems work well with most wall types


Ok that’s me done. Best of luck with your build.

Lumen

A lot of stone cladding looks awful on a house, either too modern (will look like a bad commercial building) or with no respect for the proper orientation of the stone (will look like vertical patio).

What type of stone is locally appropriate to the site, geologically?

gawa1982

You are definatly right there, Donegal sandstone is what we will likly go for. I would only look at the cladding system if cavity wall was a no go, but thanks to bryans suggestion of the thermoblock this is an option