Screening material MUST be fire proof and allow maximum sunlight into the roof gutter system. Screening material must NOT be too fine or create a shade house for spiders.
[Fit gutter system in accordance with the International Plumbing Code and Australian Standards] [AS/NZS1530.3 (Ignitability of zero on the scale 0-20); AS1397, AS2179, AS2179, AS2423 1991]