Clean the surface well and remove all dust.
Saw the fascia boards to size.
For the best result, saw the fascia boards at equal length.
Treat the cut sides with primer.
This will prevent wood rot due to seeping moisture.
Clean the fascia boards with a lint-free cloth and household ammonia.
Fit the fascia board within 10 minutes, press firmly and support if needed.
Keep when positioning, consider the possible expansion of the fascia boards.
After 30 minutes, the fascia boards are ready to seal.
Seal fascia boards: Start at the top, with the bevel side of the nozzle down.
If necessary, use a new nozzle for the correct diameter.