Because the ladder may slide when you climb up or the worst the ladder may damage creating misbalance leading to falling.
Safe way to use extension ladder against gutters.
Also the is you lean the ladder against the gutter is not safe.
If you are using an extension ladder do not lean the ladder on the gutter.
The safety shoe or foot of the ladder consists of the pads that are designed to be in contact with the ground when the ladder is in use.
Use wire string or bungy cord to secure the crate to the ladder around the middle of the rung itself.
These typically will swivel or rotate slightly in order to be make better contact with the surface the ladder is on.
Place it on the ground open side down.
It also allows you to put your ladder up at a window and be supported by the walls on either side of the window.
That should allow you to safely reach the downspout and a majority of the problem area without getting off the ladder.
It protects the gutter either by keeping the ladder off the gutters.
Provide a level base.
In the case of a single storey house that means you could use a 10 or 12 tread step ladder or a 2 section extension ladder with an extended height of 3 95m or more.
Slowly raise the ladder with crate attached to the roof just above the gutter.
Also if you regularly set the ladder against the same location on your metal gutters add extra gutter straps to strengthen the gutter in the area where the ladder top rests.
It will scratch the finish on the gutters and the forward edge of the gutter can provide a slippery rail for the ladder to slide on.
Leaning the ladder against the gutters may do great damage to the gutter because of pressure created by the combined weight of you and the ladder.
What you should do instead is to position the ladder against the wall.
A gutter ladder protector had prevented all that.
Then install eye screws out of sight above the gutter to provide anchors for securing your ladder with rope or wire.
The fly section is the portion of the extension ladder that will be extended upward.
I think you re safe doing it that way.
There would be no suitable step ladders for two storey house gutters instead you should consider an extension ladder with an extended height of around 8 metres.
Extend the ladder at least 3 rungs above the crate.
Most of the weight force of the ladder is in a downward direction not against the gutter.
Given the choice i d put the ladder 2 3 to the side of the downspout.
If standing the ladder in a flower bed be sure all straw or mulch is moved out of the way to allow the ladder is set firmly on the ground.
To prevent damage by a ladder get a delivery type plastic milk crate.
Of course it s not.
The ladder should not crush the gutters at all.
Using a stabilizer bar so that you aren t resting on the gutter helps.
A ladder stablizer is a rather inexpensive addition to your ladder.