Garden room, Office in the garden, Mancave Vapour control in the roof and walls.

The first thing to take note of is that you can build these garden sheds, garden rooms, home offices, garden workshops without having building control involved. If you haven't got building control involved, you have no obligation to build them to any standard. However, if you don't want to get any sweating between the walls (known as interstitial condensation) or in the roof, then you need to build to standards, known to perform correctly for the environment for which you are going to use the building. We know that walls and roofs, constructed to the correct specification, work. But I'm often asked, will they still work if a particular element of that construction is left out. The answer is that I don't know. Basically, it will be outside the scope of any robust construction method that has actually been tested.
Now it is most probable that it will work, however if we move too far away from the correct design, then there is a much greater chance that it may not work. When It comes to adding an AVCL (Air Vapour Control Layer) to garden sheds, garden rooms, home offices, garden workshops etc., if the internal moisture content is low, the insulation is fitted tightly and the room is relatively air tight, then you can get away with the wrong AVCL (Air Vapour Control Layer), or even get away with no Air Vapour Control Layer. Unfortunately there is no easy answer to this question but to do the work correctly. With garden outbuildings, you normally have a building height restriction of 2.5m; this makes most people go for an insulated cold roof. Unfortunately these have the greatest failure rate when constructed incorrectly. It is much better to form a new warm roof with a little less insulation, than to compromise the entire flat roof with a badly-installed cold roof.

Видео Garden room, Office in the garden, Mancave Vapour control in the roof and walls. канала Steve Roofer