https://www.youtube.com/watch?v=ajfe59NZqRI
Comments305 - How to Easily Felt a Shed Roof The Right Way- DIY - HOW TO ROOF A HOUSE! - How to Install Shingles on a Shed | Ask This Old House.

https://www.reddit.com/r/HomeImprovement/comments/uo70pm/replacing_shed_roof_need_advice/
Option 1: Tear up the shingles and decking on the impacted side, replace decking, and cover over the whole shed with agricultural grade steel roofing.

https://www.youtube.com/watch?v=je81NlFsOHs
Comments41 ; How To Shingle A Shed Roof. Guy of All Trades - 26K views ; How to Easily Felt a Shed Roof The Right Way- DIY. TheThorpester - 547K ...