Hello
I live in a 1.5-story house built in 2009 by Myresjöhus/Smålandsvillan.
The upper floor is not finished, and when I inspected a bit a couple of weeks ago, I found a saw cut in the rubber membrane that sits between the house structure and the dormer. The builders were here today to check the fault and concluded that the entire membrane probably needs to be replaced as you cannot repair the membrane.
I talked to the neighbor after the carpenters visited, who had the same problem, and they had been to him just before me to inspect.
He had asked them how they attached the membrane, and they carefully replied that it should be clamped between rafters or something. After some insistence, they said that they nailed the membrane to the rafters, meaning nails straight through the membrane that is supposed to function as protection against water and moisture. The neighbor hit the roof when he heard that because he had checked with an acquaintance who knew a bit about it and who had said that you should never nail or make holes at all in the membrane.
I also talked to neighbors who have finished their upper floors and who become a bit worried when they hear this and, of course, want to know how they should address the issue, something to ask them to rectify at the 2-year inspection or immediately?
Does anyone know and can explain what's required? How should the membrane be attached?
Here are some pictures, so maybe you understand what I mean
View attachment 43304
View attachment 43305
View attachment 43306
View attachment 43307
View attachment 43308
View attachment 43309
Very grateful for answers
Best regards
Mattias
I live in a 1.5-story house built in 2009 by Myresjöhus/Smålandsvillan.
The upper floor is not finished, and when I inspected a bit a couple of weeks ago, I found a saw cut in the rubber membrane that sits between the house structure and the dormer. The builders were here today to check the fault and concluded that the entire membrane probably needs to be replaced as you cannot repair the membrane.
I talked to the neighbor after the carpenters visited, who had the same problem, and they had been to him just before me to inspect.
He had asked them how they attached the membrane, and they carefully replied that it should be clamped between rafters or something. After some insistence, they said that they nailed the membrane to the rafters, meaning nails straight through the membrane that is supposed to function as protection against water and moisture. The neighbor hit the roof when he heard that because he had checked with an acquaintance who knew a bit about it and who had said that you should never nail or make holes at all in the membrane.
I also talked to neighbors who have finished their upper floors and who become a bit worried when they hear this and, of course, want to know how they should address the issue, something to ask them to rectify at the 2-year inspection or immediately?
Does anyone know and can explain what's required? How should the membrane be attached?
Here are some pictures, so maybe you understand what I mean
View attachment 43304
View attachment 43305
View attachment 43306
View attachment 43307
View attachment 43308
View attachment 43309
Very grateful for answers
Best regards
Mattias
