Newtonite Lath 803 Meshed Damp Proofing Membrane

Newtonite Lath (803 Mesh), the original 3mm meshed damp proofing membrane. Provides a permanent key for plastering on damp walls.
Regular priceFrom £57.99 Ex VAT
£69.59 Inc VAT
Standard delivery by

Free delivery over £300 excluding VAT

Description

Newtonite Lath, often referred to as Newton 803 Mesh, is the UK's original and leading meshed damp proofing membrane. It is a high-density polyethylene (HDPE) membrane with a 3mm stud profile and a rot-proof polythene mesh thermally welded to the front face. This mesh provides a permanent mechanical key for plasters, renders, or "dot and dab" plasterboard. Designed for above-ground use, it creates a physical barrier that isolates the internal finish from dampness and contaminating salts in the wall. It is an ideal alternative to chemical damp-proof courses, particularly in older properties where traditional treatments may be ineffective or undesirable.

Benefits

  • Provides a complete separation between the damp wall and the new internal finish
  • Superior mechanical key for direct application of renders, plasters, and lime mortars
  • Effectively handles rising damp and salt contamination without the need for chemicals
  • Quick and non-invasive installation; existing sound renders can often be left in place
  • Highly resistant to water, alkalines, saline solutions, and organic acids

Good to know

  • Available in multiple roll sizes: 1.2m x 10m (M9), 1m x 10m (M16), 1m x 20m (M21), and 2m x 20m (M22)
  • Guaranteed against deterioration for 30 years with a 50-year life expectancy
  • Must be fixed using Newtonite Mesh Plugs to ensure a secure base for the finish
  • Light, clean, and easy to handle; can be cut easily with a knife or shears
  • Inert and rot-proof, providing long-term protection against bacteria and fungi

Technical Information

Product Specifications

BrandNewton Waterproofing
Length10m
Width1.2m
ApplicationAn internal meshed membrane used to isolate new wall finishes from rising or penetrating damp and salt contamination in above-ground walls.