ᐅ Complete Renovation of a Streif Bungalow Prefabricated House
Created on: 8 Dec 2016 09:59
F
Fachwirt84F
Fachwirt848 Dec 2016 09:59Hello everyone,
My girlfriend and I live in a Streif House bungalow with a hipped roof, built in 1974. Since a new build would be too expensive for us (and the old basement wouldn’t support a new house), we want to completely renovate our bungalow. It is especially important for us to improve the façade, including new windows and doors, to prevent heat loss in winter.
I currently have two quotes (more are coming). Both offer to remove the old insulation, treat the stud frame, dismantle the old asbestos cement panels, and install new insulation. One company proposes an external thermal insulation composite system (ETICS) with exterior plaster, while the other offers a facing brick cladding. Both are priced roughly the same (around €38,000, about €330 per sqm (approximately $350 per sq ft) including installation).
Yesterday, I spoke with a third contractor who, when asked about using facing brick slips (thin brick veneers), advised against it because they are very vulnerable (especially the mortar joints) and moisture might not properly escape through the wall, causing problems. Therefore, they recommend plastering instead.
Today, I spoke with an expert (through a short contact at work) who suggested why not just leave everything as it is and fully clad the façade with facing bricks. That would be much cheaper. He estimated about €130 per sqm (approximately $14 per sq ft) plus the foundation cost. However, I would still have the contaminated debris inside the wall. What are your thoughts on this?
My girlfriend and I are leaning towards the facing bricks because they look nice, but if they really are vulnerable, we would avoid using them. Thanks for your assessments!
Fachwirt84
My girlfriend and I live in a Streif House bungalow with a hipped roof, built in 1974. Since a new build would be too expensive for us (and the old basement wouldn’t support a new house), we want to completely renovate our bungalow. It is especially important for us to improve the façade, including new windows and doors, to prevent heat loss in winter.
I currently have two quotes (more are coming). Both offer to remove the old insulation, treat the stud frame, dismantle the old asbestos cement panels, and install new insulation. One company proposes an external thermal insulation composite system (ETICS) with exterior plaster, while the other offers a facing brick cladding. Both are priced roughly the same (around €38,000, about €330 per sqm (approximately $350 per sq ft) including installation).
Yesterday, I spoke with a third contractor who, when asked about using facing brick slips (thin brick veneers), advised against it because they are very vulnerable (especially the mortar joints) and moisture might not properly escape through the wall, causing problems. Therefore, they recommend plastering instead.
Today, I spoke with an expert (through a short contact at work) who suggested why not just leave everything as it is and fully clad the façade with facing bricks. That would be much cheaper. He estimated about €130 per sqm (approximately $14 per sq ft) plus the foundation cost. However, I would still have the contaminated debris inside the wall. What are your thoughts on this?
My girlfriend and I are leaning towards the facing bricks because they look nice, but if they really are vulnerable, we would avoid using them. Thanks for your assessments!
Fachwirt84
B
Bauexperte8 Dec 2016 12:19Fachwirt84 schrieb:
Thank you for your assessments!The expert’s statement still makes the most sense to me; on the other hand, I’m not exactly a specialist in prefabricated houses.This is not really a question for a forum but for an expert/architect who is familiar with prefabricated houses and their specific features; someone who can advise you professionally and, if necessary, assist with issues related to subsidies.
Best regards, Bauexperte
F
Fachwirt848 Dec 2016 12:31Our main concern is to remove harmful substances from the walls (asbestos, PCP, formaldehyde, etc.) and, of course, to save some heating costs. If I only add brick cladding and leave the existing materials inside, I don’t gain anything regarding the pollutants. Many older prefabricated houses also have a musty smell because the old materials react with each other... this has not happened in our case so far, but it could occur at any time. This is another reason why the old insulation should be removed.
Both quotes would be eligible for KfW funding up to €50,000 (about $54,000), and the providers have already submitted the corresponding calculations. The “Isoklinker” option has already been approved by an energy consultant.
I posted this question here because I’m sure there are people with practical experience who can offer advice.
Both quotes would be eligible for KfW funding up to €50,000 (about $54,000), and the providers have already submitted the corresponding calculations. The “Isoklinker” option has already been approved by an energy consultant.
I posted this question here because I’m sure there are people with practical experience who can offer advice.
B
Bauexperte8 Dec 2016 12:45Fachwirt84 schrieb:
Our main concern is to remove harmful substances from the walls (asbestos, PCP, formaldehyde...) and, of course, to save some heating costs. If I just add brick cladding and leave the contaminants inside, I haven’t improved the situation regarding the pollutants. I’ll be a bit provocative here – when I follow all the fuss around HBCD, time and again I just shake my head. Yesterday, it was fine to just burn it conventionally; today, everyone is raising alarms.
Many old and beautiful townhouses have half their gables covered with asbestos shingles; as long as the owners don’t turn them into dust, nothing happens. What exactly is supposed to react in your prefab house that hasn’t done so until now?
Fachwirt84 schrieb:
I asked this question here because I’m sure there are people who can share their practical experience and help me. If anyone is going to respond, it will probably be Will; whether that answer differs much from mine remains to be seen.
Regards, Bauexperte
Building expert: I agree with you about asbestos, but substances like formaldehyde can definitely be present in indoor air. If that is the case, it certainly isn’t healthy...
However, it should be relatively easy to test for this, right? A quick Google search for "formaldehyde test" brings up results... And if it only leads to sleeping peacefully afterward without any further worries, all the better.
However, it should be relatively easy to test for this, right? A quick Google search for "formaldehyde test" brings up results... And if it only leads to sleeping peacefully afterward without any further worries, all the better.
Similar topics