Usually, you would have exterior gypsum, asphalt board or wind barrier fabric as a wind barrier in a wall construction, but masonite should work as well, right? It's used in this position in roof structures.
Advantages I like are that it is easy to work with, takes up little space, and provides good stability to the wall (better than asphalt board, I guess?).
Or am I missing some crucial disadvantage?
Advantages I like are that it is easy to work with, takes up little space, and provides good stability to the wall (better than asphalt board, I guess?).
Or am I missing some crucial disadvantage?
why not?
but I wouldn’t use standard masonite. preferably oil-tempered
but I wouldn’t use standard masonite. preferably oil-tempered
I have heard that oil-hardened board is too moisture-impermeable and any moisture from inside does not diffuse out sufficiently well. But I have not been able to verify if this is true, so if anyone knows, it would be great to find out.
Oil-tempered board was already used in the 1930s on walls as a cheaper replacement for exterior paneling. To reduce buckling, wooden battens imitating cover strips were added. The execution was popular on sports and summer cottages. (almost OT)
Or OSB which seems to be popular in the USA. Class 3 seems to be used in England too.
And in England, I suppose it rains quite a bit during construction. And it seems to work well.
And in England, I suppose it rains quite a bit during construction. And it seems to work well.
http://www.falconpp.co.uk/osb.php
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I have finally managed to compile the vapor resistance (Sd) in some different wind barriers (it was not easy to find!):
Wind fabric "new de luxe": 0.04m
Gypsum 13mm: 0.1m
Asfaboard 12mm: 0.2m
Board 3mm: 0.25m
Wind fabric "traditional": 0.4m
Oil-hardened board: 0.4m
(surprisingly, the gypsum has such good permeability - I didn't expect that!)
Some supplier writes that Sd <0.5m is considered diffusion-open so all are apparently okay. Then there are specific considerations for insulation with eco-fiber without a diffusion barrier and it's from there that statements have come that oil-hardened board is too dense. And it is true that it is twice as dense as the regular board, but even the non-deluxe wind fabric seems to be poorly positioned then.
Feel free to comment or correct!
Wind fabric "new de luxe": 0.04m
Gypsum 13mm: 0.1m
Asfaboard 12mm: 0.2m
Board 3mm: 0.25m
Wind fabric "traditional": 0.4m
Oil-hardened board: 0.4m
(surprisingly, the gypsum has such good permeability - I didn't expect that!)
Some supplier writes that Sd <0.5m is considered diffusion-open so all are apparently okay. Then there are specific considerations for insulation with eco-fiber without a diffusion barrier and it's from there that statements have come that oil-hardened board is too dense. And it is true that it is twice as dense as the regular board, but even the non-deluxe wind fabric seems to be poorly positioned then.
Feel free to comment or correct!
It is important to know that the ratio of inside to outside should be at least 10 times higher resistance on the inside. Additionally, masonite is as expensive as, for example, outdoor gypsum, and does not provide as good stability as gypsum. I have personally used masonite on the exterior of a house but found it difficult to achieve a good result since they are so bubbly.