drainage - why river stones needed close to foundation - Home Improvement Stack Exchange

I often observe that some houses have a strip of lawn adjacent to the foundation removed, and replaced with pebbles, river stone or alike. I understand this does not serve only decorative purpose.

Rain Forest 0.40 cu. ft. 1 in. to 2 in. 30 lbs. Polished Black

Drainage Diagram Royalty-Free Images, Stock Photos & Pictures

Can Decorative Rocks Keep Water Away from Your Foundation?

Can I use river rock to make a foundation? : r/stonemasonry

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Water drainage key if building on rock

Post surround 6 x 6- brown 2.08-lin ft Brown Stone Veneer

M-Rock Post surround 6 x 6- brown 2.08-lin ft Brown Stone Veneer

Rock Around House Foundation: A Simple Guide

Confused about grading, dirt and mulch touching house : r

mortar - Pouring concrete over rocks - Home Improvement Stack Exchange

foundation - what to fill surface water drainage trench with

Stone Barrier around a Home Foundation

Field-stone Foundation on Top of Bedrock, Keep the Water Out

Parts Of Merced River Closed For Fishing