Barrier Mesh
Cirtex® rigid Barrier Mesh is a highly visible orange mesh designed to withstand harsh conditions.
Cirtex® SiltFence is a high quality UV stabilised woven polypropylene silt control fabric used to prevent silt runoff entering our waterways.
SiltFence is a requirement to be used around construction and earthworks sites to prevent the silt running off the construction zone in an uncontrolled manner, polluting our waterways. SiltFence meets the requirements of Local Authorities for a primary barrier against site runoff.
Cirtex SiltFence is manufactured from a robust UV stabilised yarn, providing a strong and stable product that will last in the harsh conditions we find here in New Zealand. This ensures that there is no premature failure on projects sites resulting in costly contamination of surrounding properties and waterways.
Based on 1.5m Steel Y Posts.
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Please note: This is only a conceptual overview of the installation process, site-specific requirements may vary.
The effectiveness of SiltFence can be limited if not installed correctly. We have put measures in place to ensure your SiltFence is a succcess. See below.
View our installation diagram here.
The plastic yarn or fibres used in this geotextile consist of at least 95% by mass of polyolefins, polyesters or polyamides, and contain stabilisers and inhibitors added to the base plastic to make the filaments resistant to deterioration due to ultraviolet and heat exposure.
Super SiltFence is a double layer product with a sewn joint and is also available from Cirtex. Super SiltFence requires Super SiltFence Wire Mesh to be placed behind the fence to give additional strength and support.
SiltFence is a woven geotextile that complies with the technical requirements set out in GD05.
SiltFence is used in a wide range of applications for containing sediment runoff. It filters out solids while allowing water to flow through.
SiltFence is to be installed with 200mm below ground returning upslope, 200mm below ground verticle, and 600mm above ground level. SiltFence is to be supported by Y Posts every 2m (when using soft wire) or 4m (when a high tensile wire is used). SiltFence clips or pins are to be every 200mm, attaching the top of the SiltFence to the wire.
Cirtex® rigid Barrier Mesh is a highly visible orange mesh designed to withstand harsh conditions.
A quick and effective way of managing sediment runoff into culverts and waterways.
Cirtex Steel Y Posts are a strong durable post used for many applications on an civil construction site.
Super SiltFence is the combination of a double layer silt fence material supported with a galvanised wire mesh.
The Northern Corridor Improvements (NCI) project aims to facilitate inter-regional travel between Auckland and Northland by building a new motorway connection between State Highway 1 and State Highway 18.
NZTA are currently working on a new initiative called ‘The Safe Roads and Roadside program’ to make our state highways safer. NZTA recently deemed a piece of SH23 (between Hamilton and Raglan) as a ‘high risk rural road’.
Cirtex® supplied a significant quantity of BioCoir matting for the Hamilton Ring Road project. Cirtex BioCoir is a biodegradable coconut fiber matting for erosion and sediment control and landscaping applications.