ᐅ Old Building with New Windows: How to Install Additional Ventilation?
Created on: 15 Jun 2017 17:45
A
Altbau1930
Hello,
On Tuesday, our energy consultant visited our house to inspect it. He is supposed to plan the roof insulation and provide specifications for the new windows.
The good news first: The consultant is a trained carpenter, and after inspecting the rafters, he said the roof structure is completely fine except for a small beam. This is contrary to the opinion of the expert surveyor, who believed the woodworm had caused significant damage. The energy consultant did not confirm this; only one beam had been affected by woodworm at some point, but no wood debris has been found on the floor in recent years. In short: the roof will be re-covered and insulated, but the (expensive) roof structure can be preserved.
On Monday, the energy consultant will come with a roofer to plan the roof, which should ultimately meet KfW standards and be eligible for funding.
The same applies to the windows; we already have an estimate, but it’s for double glazing. The consultant recommends triple glazing, which will not be significantly more expensive.
However, since we do not want to insulate the walls, the consultant said mold will definitely develop after installing new windows. This must be avoided.
There are two options:
- Install ventilation in each room through the external wall. This means core drilling and installing vents (the less desirable option, probably expensive and complicated).
- Install windows with integrated ventilation (which sounds interesting).
How have you solved the problem of mold formation after new windows, and what type of ventilation do you have?
I would be grateful for any advice!
On Tuesday, our energy consultant visited our house to inspect it. He is supposed to plan the roof insulation and provide specifications for the new windows.
The good news first: The consultant is a trained carpenter, and after inspecting the rafters, he said the roof structure is completely fine except for a small beam. This is contrary to the opinion of the expert surveyor, who believed the woodworm had caused significant damage. The energy consultant did not confirm this; only one beam had been affected by woodworm at some point, but no wood debris has been found on the floor in recent years. In short: the roof will be re-covered and insulated, but the (expensive) roof structure can be preserved.
On Monday, the energy consultant will come with a roofer to plan the roof, which should ultimately meet KfW standards and be eligible for funding.
The same applies to the windows; we already have an estimate, but it’s for double glazing. The consultant recommends triple glazing, which will not be significantly more expensive.
However, since we do not want to insulate the walls, the consultant said mold will definitely develop after installing new windows. This must be avoided.
There are two options:
- Install ventilation in each room through the external wall. This means core drilling and installing vents (the less desirable option, probably expensive and complicated).
- Install windows with integrated ventilation (which sounds interesting).
How have you solved the problem of mold formation after new windows, and what type of ventilation do you have?
I would be grateful for any advice!
A
Altbau193016 Jun 2017 14:32Thanks, Joe, I just took a look at it.
This option is certainly quite good, but I would like to avoid, if possible, making several core drillings in the 60cm (24 inch) slate exterior wall. If it can’t be avoided at all, fine. But my priority is to manage it with the windows and ventilation there (additional grilles, for example), if the manufacturer offers that. I’m currently researching this.
This option is certainly quite good, but I would like to avoid, if possible, making several core drillings in the 60cm (24 inch) slate exterior wall. If it can’t be avoided at all, fine. But my priority is to manage it with the windows and ventilation there (additional grilles, for example), if the manufacturer offers that. I’m currently researching this.
A
Altbau193016 Jun 2017 15:09Yes, the energy consultant mentioned that as well.
On Monday, he will come back with the roofer for another inspection, and then I will discuss the matter with him again.
On Monday, he will come back with the roofer for another inspection, and then I will discuss the matter with him again.
Hello,
try searching for "Soleo Air" by Höhbauer.
We have the Airpur modules installed inside the roller shutter box and are satisfied with them so far. The Airpur modules cost between 1100 and 1300 euros, depending on whether they are for roller shutters or blinds.
Greetings from Bavaria.
try searching for "Soleo Air" by Höhbauer.
We have the Airpur modules installed inside the roller shutter box and are satisfied with them so far. The Airpur modules cost between 1100 and 1300 euros, depending on whether they are for roller shutters or blinds.
Greetings from Bavaria.
A
Altbau193016 Jun 2017 22:44Thanks for the tip!