Alder trees

Question

Do they cause root damage to close buildings?

Answer 1

Alder Trees have a large and expansive root system.
You should consider this tree an invasive root system tree.

https://www.gardeningknowhow.com/ornamental/trees/alder/alder-tree-information.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/trees-with-invasive-roots.htm