See why Huntington Beach flat roofs need careful waterproofing

https://kameronjsrm488.brightsora.com/posts/signs-your-huntington-beach-roof-has-marine-layer-dry-rot

See why Huntington Beach flat roofs need careful waterproofing and why reroofed low-slope roofs may also need Title 24 cool-roof products, depending on California climate-zone requirements.