cross-laminated timber elements for house construction

[billi]

http://www.klh.at/kreuzlagenholz-einsatzbereiche/?L=1



Seems a good idea to me  .... 



I always  am thinking of solid wood houses  and plaster them .....  would it work   

[EccentricAnomaly]

What would the function of the plaster be?

[mespilus]

Thermal mass, maybe?

[billi]

..... thermal mass , weather protection   as well  as many houses here  have  to be stone faced  

[billi]

as well a building-method , that i cannot find a lot of info , is using  round woodlogs  upright /vertical  ....

As far as i know it will not shrink much  this way  and if you plaster it  ( i am on the clay plaster idea ) than it could be a quite cheap warm construction idea

[A.L.]

hi,

it could be a quite cheap warm construction idea

perhaps not so warm - 300mm hardwood U-value 0.52, 300mm softwood U-value 0.39 -about same as cavity filled brick wall

[djh]

AFAIK, there's no need for plaster, although it can be used for decorative effect.. I think the construction typically is, from the inside, mass timber, insulation, facade. The facade can be render, timber cladding, brick etc as for timber frame. The massive timber provides the thermal mass and the structure.

There's a site with information at http://www.dataholz.at/en/index.html and there's also a variation called brettstapel

I don't know about costs; I'd be interested in a comparison.

[billi]

perhaps not so warm - 300mm hardwood U-value 0.52, 300mm softwood U-value 0.39 -about same as cavity filled brick wall

 

It feels   warm to me   ,  cause our log cabin here is 70 mm thick  and able to heat  with our 5 kw Woodburner
I guess timber feels warmer 

But sure i should run it through a U valve calculator program i know , to find out  if solid wood construction with additional insulation and clay plaster may be an idea for us ....

I just hate the concrete blocks over here  ...

[AlanM]

Timber feels warm to me too, have 300 to 400mm thick log walls and its quite warm here, even when it was minus 18Deg C this winter. Dont think a brick wall would be quite as warm, in fact, i KNOW a brick wall would not be as warm.

Alan

[biff]

i know most people on this forum are anti-concrete,
                         if i ever get the chance to build another house i will use the flooring beams,80mm x 1000mm as long as 6mtrs vertically as outside walls tying them together with galvanised rsj,s. i honestly believe that one could errect the superstructure for a decent sized house in record time plus it would be around for a long long time,through storms and floods.sleeping quarters underground and open plan above.
      done properly it would be quick and neat and very safe, the finishing,such as insulating and second fixings could be top of the range with the saving on the superstructure.it will just take someone to do the first one.
                                                                       biff

[djh]

Timber feels warm to me too, have 300 to 400mm thick log walls and its quite warm here, even when it was minus 18Deg C this winter. Dont think a brick wall would be quite as warm, in fact, i KNOW a brick wall would not be as warm.

How warm a wall feels has to do with its admittance, rather than its conductance (U-value). The U-value determines how big a stove you need to heat something, not how warm it feels inside when it is heated.

And the U-value question is not about timber versus brick, it's about adding insulation.

[AlanM]

Part of the u value question is that with brick/stone walls you require to add more insulation, as the structural element adds little to the thermal retention properties of the building, wheras with timber that is not the case.