I am replacing all the wood trim around my garage door openings. The trim butts to vinyl siding with j-channel. The siding at the top of the doors had no flashing or trim cap and that is where the water got in. I am installing flashing above the door trim. The wall itself only has chip board (I guess it is really called OSB) behind the siding. Should I install some sort of tarpaper or plastic behind the siding a few inches along the top and sides of the opening before putting up the new wood trim? Seems like another disaster waiting to happen with just bare chip board behind the siding. I pulled out a bunch of soggy chip board where the leak occurred at the top. The chip board had soaked up the water like a sponge! North facing wall which gets snow and ice in winter. Moss growing in J-channel above door due to lingering moisture.
Doors – Do I need anything over the wall board around wood trimmed garage door openings
doorsgaragetrim
Related Topic
- Water – How to protect wooden trim that abuts a brick chimney from further water damage
- Doors – My ex came in the house, unplugged the garage door opener and jammed the doorknob of the door into the garage. How do i get the garage door open
- Water – How to stop water from wicking into the wall
- Flooring – How to secure shoe moulding against metal frame
- Doors – What type of replacement door threshold do I need for a garage service door
- Doors – Garage door doesn’t close all the way
- Water – What wall cladding should be used along the floor of the garage
- Doors – 12′ sliding door frame shimmed up against header and sagging at point where shimmed
Best Answer
I would put some flashing there. I was just doing some work on my back door and while it leads directly to the house not the garage. There was some flashing that went under the siding and over the trim. (For the horizontal piece) You're right OSB does soak up water pretty well. Once wet it doesn't stay together very well either.