Specifications for fitting Stainless Steel Sprung Wires to Buildings Materials  Vertical posts: 4mm-diameter 316 grade stainless steel Split pins: 4mm-diameter, 25mm length 316 grade stainless steel Domed plugs: 6mm-diameter UV resistant glass-filled nylon polymer Stick-on bases: 40mm x 40mm UV resistant glass-filled nylon polymer Horizontal posts: 6mm-diameter 316 grade stainless steel Wire: 0.7mm-diameter nylon coated 316 grade stainless steel Ferrules/crimps: brass Cap springs: 4mm-diameter, 12mm length 316 grade stainless steel Tension springs: 6mm-diameter, 25mm length 316 grade stainless steel  Vertical Support Posts Vertically fixed posts are installed at a maximum spacing of 1.5 metre along the ledge.  Posts are mounted in various fittings depending on the surface so that the height of the front row is 85mm and the height of the inner rows is 120mm.  The spacing between parallel rows is 75mm.  In window reveals, split pins are used instead of posts so that the wires dress closely to the sides of the building.  Cap springs are fitted to the top of each post and the wire is run through them.  The wire is tensioned with tension springs and crimps.  The tension springs are fitted at a maximum spacing of 3 metres. Horizontal Support Posts Horizontal mounting systems are useful for installing multiple rows over wide ledges without having to drill numerous holes or glue numerous bases to the ledge if vertical posts were used.  The length of the posts is cut to suit the width of the ledge and this system also allows a greater overhang at the leading edge. The posts are mounted into 6mm-diameter holes drilled into the masonry or mortar bed at a maximum spacing of 1.5 metres.  The holes are drilled at a height of 120mm above the ledge and angled down so that the tip of the fitted rod is 85mm above the leading edge.  The holes are sealed with silicone.  Wire is attached to tension springs slid onto the posts with a maximum spacing between rows of 75mm.  Diagonal wires are fitted from the tip of the post to a split pin and plug drilled into the masonry above the post.  This prevents the pigeons from perching on the post. Home    About Us  Service Levels  Services for:- Property Managers Catering Construction Architects Householders Research Pest Information- Birds Insects Rodents  Published Research    Contact Us    Jobs