I have a cabin that was quite extensively renovated last year. It was previously uninsulated. Now it has a parallel roof with an air gap and eave ventilation. We installed a Mataki shingle roof but did not install ridge ventilation. Now I've been considering how big of a mistake that was, and I've probably concluded that it should be addressed. That is, to install Mataki's ridge ventilation afterward.
Does that sound sensible?
There is a vapor barrier in the roof, but there might still be moisture on the underside of the roof sheathing.
I am quite convinced that it's a good idea, but I would gladly welcome any input!
Attached are some pictures of how it looks and a sketch of the construction in cross-section.
After the old roof sheathing was removed.
Here we have installed beadboard and a vapor barrier on the outside.
The vapor barrier is visible, and the compartments for insulation.
With the small roof, I would have been satisfied with an air gap down by the eaves, which is also a common solution. The important thing is that the air gap is there.
Yes, that might be enough. I would prefer to leave it as it is to avoid piercing a roof with the risk of leakage.
However, the roof is steep, 44 degrees.
Thank you for your response!
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