yep, missed that you should also have a wind barrier against the wooden wall
Could you show TS that the profile-planed wall meets EI30, otherwise this post is not more informative than the others. What type of mineral wool do you mean and what density should it have? In this case, is it suitable to use mineral wool when the cottage will be unheated for large parts of the year?O olof77C said:
If you disregard the question of fire classification, which only the manufacturer can answer as it entirely depends on the timber's profile, etc., there is no point in insulating a log cabin that will only be heated sporadically. The comfort won't increase, and you end up with a wall construction with worse properties at a higher price. There have been incredibly many cabins built in Sweden with two-inch planks in the outer walls and tension paper and wallpaper on the inside. As long as there was unlimited access to your own wood, no one froze. If interior additional insulation is necessary to achieve the desired fire classification, there are different density requirements for different insulation materials. Furthermore, one can say that high density in the insulation increases the thermal capacity of the construction, which is an asset from a heating perspective. The effect of this naturally depends on what other materials are included in the wall construction. In buildings that are only sporadically heated, one should not use effective vapor barriers like plastic foil, as it often happens that moisture migration goes from outside in. Since I happen to know that bossespecial is one of the most technically competent people in building writing on Byggahus, I think some of the posts above are embarrassing. bossespecial is naturally modest, a good trait in this context.
1. Are you planning to install a stove, hence the fire rating?R Rolle85 said:
If you are not going to heat the cabin a little during the winter, I would not insulate it, because it will lead to bad odors, etc.
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Two layers of plaster can be good and less good, depending on the circumstances. From a fire and climate perspective (weight), it is naturally good. Less good from a moisture perspective in an unheated cabin.