This is a known issue that is directly caused by capping over the fascia instead of doing a proper job and replacing it.
Roof sheathing and fascia board.
The framing continues with roof sheathing.
Cut out each 3 ft 0 91 m section one at a time until you ve removed the full board.
Take a small scrap of the sheathing and a 2 piece of the facia from ur ladder hold the sheathing on the roof and slide it down to where the bottom edge of the sheathing is flush with the edge of the rafter or sub facia then hold the facia up to it remember to hold the facia at th angle of the roof we use a speed sq.
When sheathing a roof the first step is to snap a line so that the first row goes on straight.
Hence why it s best to just remove and replace it and then fix directly to a solid and reliable structure such as a roof rafter.
Make vertical cuts into the fascia board between your roof rafters.
4 reduced roof tile overhang by capping over the boards the guttering will be set slightly further away from the roof tiles this may cause rain water to run behind the gutter rather than into it.
Cut the board into 3 ft 0 91 m sections with a reciprocating saw.
If you don t seal them properly water can run off the roof and into your home.
Drip edge flashing directs roof runoff away from the roof fascia and edge and into gutters or at least not down the fascia board if no gutters are installed and it is recommended by roofing standards manufacturers and experts.
But if you snap it at 40 inches then the sheathing will not project over the subfascia or true fascia.
And hold it on the sheathin and let it stick over about 3 inches and push the facia up until it just touches the bottom of the speed sq u can use a 12 2x4 for this.
Mark out 3 ft 0 91 m sections along your fascia board with a pencil.
If water gets trapped.
You can also add some boards behind your fascias.
How to seal fascia gaps in a roof.