roof tiles cleaning help/advice

[Cenon]

gdra wahale rata ulu tyenne bn, clean karaganna hodama & lesima vdya kiyanna pls.

chemicals?
pressure gun?

chemicals + pressure gun karanawa nam chemicles suggest pls.

thanx

 

[kinkon]

 

[Bunji Kuraki]

Bump

 

[topkollek]

wire brush