Roof Replacement and Proper Ventilation
Hello, I live in Maryland (zone 4?) in a home we purchased in 2017 that had recently had the roof replaced. Last year we had a leak during a very heavy rainstorm and realized that when the roof was replaced the sheathing was not replaced and it should have been.
We would like to install solar panels and want to address the sheathing that is soft is certain spots before we move forward installing solar. I believe the reason that the sheathing is soft is due to improper venting below the sheathing.
You can see in the pics that I have highlighted specific areas. The area at the top (yellow) closest to the ridge has a very low attic above it with blown insulation and no baffles. The area below that (orange) is a vaulted ceiling in the living room and kitchen. The area below that (blue) is a dinning room that I think used to be an open car port and had an addition put on it. The double blue line represents where I think that the eave was blocked when the the addition was done. The red area is an open entry area with an entry door into the kitchen.
The roof is a 3-12 pitch and has a ridge vent at the top of the yellow section. all of the eves have vents but as I said, I think that further up they are blocked.
As we call roofers to come and provide estimates, I’d like to understand what would be the best way, if at all possible to vent this roof?
To add another level of complexity, we are considering doing an addition to this side of the house in the long term future (5-10) years.
Thank you for your input in advance.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part