This video is missing the biggest point for a healthy building and the biggest advantage of a product like TimberBoard. A house does not need to breath, that's correct but it must be able to *sweat* . This means that the outer surface and the inner surface of your walls and roof must have capillary properties so it can dry on the outside when it gets wet on the inside - i.e. due to condensation - and visa versa. A product like TimberBoard can do this, just like fibre cement boards, MDF (RWH),... Boards like OSB or plywood not really... Most membranes, foils, wraps, sticky shields,... are totally not capillary active and should therefore be avoided. 28:48 The amount of air barriers depends on the type of insulation you're using. If your insulation is more or less air and/or vapor open like TimberFill, cellulose, hemp, flax, any wool, ... you need *TWO* air barriers! One on each side of the insulation layer (warm side and cold side). And these air barriers need to be capillary active. All capillary active materials will also be vapor open which is a plus as your insulation will never be locked in inbetween two vapor closed layers. And all this counts for every climate zone.
This video is missing the biggest point for a healthy building and the biggest advantage of a product like TimberBoard.
A house does not need to breath, that's correct but it must be able to *sweat* .
This means that the outer surface and the inner surface of your walls and roof must have capillary properties so it can dry on the outside when it gets wet on the inside - i.e. due to condensation - and visa versa.
A product like TimberBoard can do this, just like fibre cement boards, MDF (RWH),...
Boards like OSB or plywood not really...
Most membranes, foils, wraps, sticky shields,... are totally not capillary active and should therefore be avoided.
28:48 The amount of air barriers depends on the type of insulation you're using. If your insulation is more or less air and/or vapor open like TimberFill, cellulose, hemp, flax, any wool, ... you need *TWO* air barriers! One on each side of the insulation layer (warm side and cold side).
And these air barriers need to be capillary active. All capillary active materials will also be vapor open which is a plus as your insulation will never be locked in inbetween two vapor closed layers.
And all this counts for every climate zone.