Fiberglass screening is rust and corrosion resistant,fireproof(at cigarette temperture),wonot strentch or shrink and resists impact.Fiberglass screening is also avilable in a variety of meshes and colors.Like aluminum,standard meshes are 18*16 and the two most popular colors are silver gary and black.Fiberglass screening is also available in a fine-woven 20*20mesh used primarily in coastal areas where very tiny flying insects are problems.For large areas such as pol enclosures,a strong 18*14mesh is also available.Some meshes and colors of fiberglass are also available on special on special order in 78 and 84 widths.