I have read about Thermisol before but thought the Maco stuff seemed interesting. As I mentioned before, I have an older house that the previous owners added 20 cm of insulation to on top of the original roof's raw boards. Now the house looks a bit odd with too large a "hat" and it also seems poorly done, because when it snows (that white slush, if anyone remembers it) it melts away in a large area in the middle of our roof long before it melts on the non-insulated neighboring houses.
So if I tore off the new roof and made a new one with Maco's renovation variant, I would lower the "hat" by 10 cm and probably get better functioning insulation.
For those of you who have looked into Maco - have I understood it correctly when I read their websites, that you don't need a vapor barrier in the roof?
So if I tore off the new roof and made a new one with Maco's renovation variant, I would lower the "hat" by 10 cm and probably get better functioning insulation.
For those of you who have looked into Maco - have I understood it correctly when I read their websites, that you don't need a vapor barrier in the roof?
Yes, it's strange that you can't build risk-free in 2007... but it all probably comes down to money. People are still building without taking full responsibility for their constructions. Problems are often discovered more than 10 years later, and then it's no longer the developer's issue. I think attics may become the next big "crawl space problem" where everyone will buy dehumidifiers...
There is quite a good report from Lund regarding different methods to address moisture in cold attics. For example, cell plastic insulation above plank, 200W heat source in the attic, ventilation, etc. http://www.fuktcentrum.lth.se/infodag2005/KallaVindar_Jesper_Arfvidsson.pdf
So there's still hope!
A little side note... There's a huge temperature difference in my attic if I have snow or not on the roof. In other words, the snow insulates well... and it's free!
There is quite a good report from Lund regarding different methods to address moisture in cold attics. For example, cell plastic insulation above plank, 200W heat source in the attic, ventilation, etc. http://www.fuktcentrum.lth.se/infodag2005/KallaVindar_Jesper_Arfvidsson.pdf
So there's still hope!
A little side note... There's a huge temperature difference in my attic if I have snow or not on the roof. In other words, the snow insulates well... and it's free!
Found this thread and the first MACO thought that flies through my head is "die dumme Schweden"...
How can the Germans have had this method for 18 years without us, with our climate, adopting it? Seems ingenious. You don't even need a subroof.
For my house with about 235 sqm pitched roof, it would cost 86,000:- to insulate the roof in this way. Sounds cheap considering that all of a sudden I get a lot of nice extra square meters, if nothing else, for a sleeping loft for guests.
I wonder what our Swedish house manufacturers would say if customers started demanding this roof construction with the motivation that they don't want mold in the attic.
How can the Germans have had this method for 18 years without us, with our climate, adopting it? Seems ingenious. You don't even need a subroof.
For my house with about 235 sqm pitched roof, it would cost 86,000:- to insulate the roof in this way. Sounds cheap considering that all of a sudden I get a lot of nice extra square meters, if nothing else, for a sleeping loft for guests.
I wonder what our Swedish house manufacturers would say if customers started demanding this roof construction with the motivation that they don't want mold in the attic.
The conspiratorially minded and skeptics might suspect that the parties in the "established" construction industry, builders, architects, manufacturers, etc., are looking out for each other and suggesting the products they are paid to suggest... such as insulation products where the market might be divided between glass wool and mineral wool suppliers.
Advocates/innovators for new methods might not lobby properly for their solutions.
Advocates/innovators for new methods might not lobby properly for their solutions.
It may simply be that if an architect/builder uses a proven method and it doesn't work so well, they can at least refer to it as proven. If they use an unusual one that doesn't work, they can expect to incur hefty costs to replace it with something else... What would you choose? ;-)
Specifying in detail how it should be built from the National Board of Housing, Building and Planning is something that has been actively removed (even examples) because all parties felt it stifled the development of new solutions...
A big problem is finding neutral information about products, especially for private individuals, often you only find sales propaganda and going into a building supply store is increasingly reminiscent of SIBA/Onoff, etc.
Specifying in detail how it should be built from the National Board of Housing, Building and Planning is something that has been actively removed (even examples) because all parties felt it stifled the development of new solutions...
A big problem is finding neutral information about products, especially for private individuals, often you only find sales propaganda and going into a building supply store is increasingly reminiscent of SIBA/Onoff, etc.