u/DragonflyNational912

Hi, I found this thing near the patio screen door last night? I wonder is it part of the screen door? Is it coming from here? I can figure out how to put it back?

https://preview.redd.it/qk2sitny332h1.png?width=383&format=png&auto=webp&s=f29c1275021044a063be69c96ffcffb20489275a

https://preview.redd.it/ahrkep6v332h1.png?width=383&format=png&auto=webp&s=0a9cefe3486718c300a92d32f0c9ad4d47342e1f

Hey, I am just wondering from your experience what type of sealant should I use between my exterior door trim and brick, or between my aluminum siding and brick

Aluminum Siding and Brick wall

Exterior Door Trim and Brick wall.