The splash zone is commonly covered in encrusting algae and dark lichens that are tolerant of sea spray. Few other marine organisms can tolerate the almost terrestrial conditions found in the splash zone. Below the splash zone is the high intertidal zone, which is exposed to air for a large part of the day.
Trim installation with paint: $3.50 per linear foot, including materials. Trim installation without paint: $3.25 per linear foot, including materials. Average cost to install trim in a 10x10-foot bedroom: $500 for one window and one door, including labor, materials and paint.
1 Downspouts â An essential accompaniment to gutters, downspouts will cost approximately $5 per linear foot to $12 per linear foot.  Gutter Guards â If you plan to have gutter guards installed, they will run you anywhere from $1 per foot to $20 per foot, plus installation, which will cost you about $250.