It takes 36 nine 4 panels 8 gaps of wall before the panel creep has moved a full inch which is probably the absolute limit.
Gap between garage roof and wall.
Lay down a strip of vinyl weather stripping and transfer the measured length on it.
The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.
Below are two photographs of roof wall step flashing completed and effective of a slate roof against a brick wall below left and in process with step flashing against a dormer sidewall before the dormer siding has been put in place below right.
2 measure the garage door height.
The royal society for the protection of birds encourage builders to make provision so that critters can enter your roof to nest.
You could instead apply this internally.
Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof.
I thought of filling it with concrete or a sealer but then thought that maybe it was there for a reason.
3 place the vinyl strip on the wall side where the wall meets the garage door.
I have a attached garage with a cement floor.
I was about to paint the floor when i noticed one the side away from the house there was a perfectly straight line gap.
Take your measure between the garage door and wall.
As stated in apa literature.
There is a thin gap between the wall and the roof of my garage which lets in some water when it rains.
The flexible vinyl strip has to cover the gap to lay flush on the door and its part with the screw holes should face the side wall.
Shut the garage door and go outside to seal up all the gaps.
Proper roof wall abutment flashing examples.
1 8 inch spacing is recommended at all panel edge and end joints subfloor wall and roof unless otherwise indicated by the manufacturer.
Use your scissors and cut this size.
Gap between garage wall and bottom of roof i m not sure where to put this thread or what the best title would be.
The roof of the garage is made of the old corrugated sheets.
I found fixing wire mesh externally to any small gaps at the top of the walls keeps unwelcome types of animal out.
If you meant an eave gap under an entirely new roof between the top of the wall and the underside of the roof that might well be especially if between the rafters or truss rafter tails your eave ventilation gap which for a ventilated unheated unair conditioned attic provides ventilation air to control heat and moisure buildup.