They cost more but the head of the screw remains a couple of inches away from the fascia making them a lot easier to install.
Gap between roof and fascia.
Do not remove the blocks install same size gutter without any modification.
This gap is caused when roof decking is stopped too short and is not flush with the fascia.
Rip the tops of the fascia boards to match the slope of your roof.
Mark the slope by driving a nail at the designated spot below the gutter.
Replace all rotted wood with pressure treated lumber.
The gap is meant to help with airflow throughout the attic.
This is a gap between the fascia board where the gutter is hung and roof decking.
Subtract 1 32 inch for every 10 feet of gutter and then note down the new total at the bottom end of the gutter run.
Position the ladder on firm level ground.
Cut the tip on a tube.
Set a ladder up to gain access to the fascia boards.
That area is supposed to be open for venting the roof.
Remove the wood blocks and put an 5 inch gutter it will compensate for the gap.
Drive a nail at this spot and then snap a chalk line between the two nails.
To get an idea of what i am talking about google soffit and fascia and you will see typical installations.
Set the angle of the circular saw blade to match the slope of your roof and run the saw along the top edge of each fascia board.
Measure the distance from this nail to the bottom of the fascia board.
How to seal fascia gaps in a roof 1.
B this old house recommends instead of installing the 1 2 furring strip to simply have the roofer leave a finger gap between the drip edge and the fascia board so that the gap prevents the surface tension from pulling water up.
If your shingles overhang your fascia by a few inches or you have steel roofing buy the brackets with the screws built in the type shown here.
However this gap is the perfect place for pests and unwanted wildlife to enter your home.
However it should be covered with a material made of aluminum or vinyl with a type of screen to allow air to enter but keep small animals and rodents out.
Gap is not needed.
Inspect the fascia boards for damaged areas.
Regarding the original question about the sheathing being short at the fascia board if that is what you meant you should find out if this is an airvent assuming you have no or near zero roof overhang some zero overhang roofs though all designers who design such roofs should be hung by their toes from the non existent eaves use a gap right behind the fascia as an eave vent so you do not want to block that with a solid filler so hardware cloth would work as an entry barrier.
Making the tops of your fascia boards the same angle as the roof allows you to easily place roofing material over them without creating bumps or ridges.
