Oldroyd Tp - Filter fleece for use in conjunction with Oldroyd cavity drainage membranes
Oldroyd Tp is an engineered geotextile intended to be used in conjunction with certain Oldroyd cavity drainage membranes to provide a filtration/separation layer. Typical applications are described below:
A layer of filter fleece such as Oldroyd Tp is required as part of many green roof designs to prevent particles of growing medium being washed into the drainage layer. Oldroyd Tp is typically used on flat green roofs in conjunction with Oldroyd Xv20 Green Xtra drainage membrane.
Foundations and Basements
Where basements are waterproofed externally it is normal practice to install a land drain around the perimeter of the basement at slab level. To reduce the chance of the land drain silting up, it can be laid in a bed of single-sized aggregate which is wrapped in a layer of Oldroyd Tp filter fleece.
Related Products
Oldroyd Green Range - A range of drainage membranes developed specifically for green roof applications.
Oldroyd Gtx Range - A range of cavity drainage membranes incorporating a welded geotextile fleece.
...Full range of Oldroyd membranes.
Oldroyd Tp can be specified under the following clause:
- Q37-360 (Filter Membrane)
Safeguard currently offer the following RIBA-Approved CPD Seminars free-of-charge to architects and specifiers on the UK mainland:
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Green Roof Filtration Layer 
