ᐅ Timber Frame Construction – Include a Service Cavity or Not?
Created on: 22 Feb 2015 20:20
T
TiBiHaus
Hello,
we are about to embark on the adventure of building a house and are planning to construct a timber frame house to KfW 55 standard.
One company has recommended an installation cavity for the exterior walls (“Useful to never compromise the airtightness of the house”), while another strongly advises against it (“Not necessary at all – just takes up space!”).
We are still undecided on the ideal wall construction. What should be considered regarding the airtightness of the walls? How about any later installation work? What are your experiences?
Best regards
TiBiHaus
we are about to embark on the adventure of building a house and are planning to construct a timber frame house to KfW 55 standard.
One company has recommended an installation cavity for the exterior walls (“Useful to never compromise the airtightness of the house”), while another strongly advises against it (“Not necessary at all – just takes up space!”).
We are still undecided on the ideal wall construction. What should be considered regarding the airtightness of the walls? How about any later installation work? What are your experiences?
Best regards
TiBiHaus
TiBiHaus schrieb:
The contractor mentioned airtight electrical back boxes that make it easy to achieve airtightness. That sounds plausible to me at first. But how does it work when modifying the installation afterward?Hello,
That means you end up with well over 100 potential additional weak points in an area that is already sensitive. What about cables running from the exterior into the interior wall?
I worked for many years installing systems in houses with service cavities and can only strongly advise caution.
Olli