Insects, mosquitoes and other undesirable airborne pests are a constant threat to both personal comfort and hygiene. We stock an extensive range of standard í«insect mesh for screening windows, doors and ventilation areas in homes, offices, hospitals, restaurants and other establishments where there is a potential problem. Uk building regulations now insist upon mesh screening to be fitted above soffit board ventilators, and we are able to supply our standard grades in strip form specifically for this purpose. Insect screen standard specifications Material type mesh no. (inch) aperture (w) mm dia (d) mm open area % mass (m) kgm2 Warp weft warp weft Aluminium 18 16 1.13 1.31 0.28 66 0.21 Galvanised steel 16 16 1.31 1.31 0.28 68 0.63 Stainless steel 16 16 1.31 1.31 0.28 68 0.63 20 20 0.19 24 24 0.12