Making sure the gutter system is properly installed is key to preventing water from damaging your fascia board.
How to tell if fascia board is level for gutters.
Ask a helper to assist you so you don t have to lift the fascia board yourself.
A loose gutter system can also damage your boards as it pulls away from the wood.
Gutters should have a small amount of fall toward the downspout or be level at the very least.
If your fascia boards are level you can use them as a reference for sloping the gutters.
Press the board tightly against the ends of the rafters so the top edge is level with the tops of the rafters.
Thankfully there are ways to counter this damage.
Snap a chalk line to indicate the top of the gutter.
Check this by holding a level against the bottom edge.
If they aren t level adjust the string line until a level aligned with it shows a slight slope.