TM3 Mesh Membrane (Various Sizes) – 3 mm Cavity Drain Mesh for Direct Plastering & Damp Isolation
 
TM3 Mesh Membrane (Various Sizes) is a durable polypropylene cavity drain system designed to isolate damp masonry and provide a secure substrate for direct plastering or dot-and-dab plasterboard installation. With a low-profile 3 mm stud thickness, this mesh membrane is perfect for creating a dry, habitable environment inside walls—especially after damp proofing treatments.
Ideal for both commercial and domestic projects, the TM3 Mesh combines flexibility, robustness, and easy installation. It’s strong enough to resist salt, contaminants, and root intrusion, while also delivering smooth compatibility with traditional finishing materials.
 
Key Benefits
Slim-profile design (3 mm studs) maximizes internal space.
Built-in mesh provides excellent key for direct plastering or adhesive application.
Creates a breathable barrier that isolates damp or salt-affected surfaces.
Easy to cut, shape around corners, and fit into tight spaces.
Stable in both high and low temperatures and resilient against environmental degradation.
Part of a BS 8102-compliant Type C drainage system for effective waterproofing.
Typical Applications
Direct plastering onto internal walls previously treated for damp.
Fixing plasterboard over damp or salt-contaminated masonry.
Retrofitting older and listed buildings requiring minimal structural disturbance.
Creating a quick-dry, habitable finish in basement or cellar refurbishments.
Available Sizes & Coverage
Multiple size options are available to suit various project scales—from single-room jobs to full property renovations. Coverage is proportional to the size selected, offering flexibility for installers.
Installation Overview
Measure and cut the membrane to size using a sharp blade or scissors.
Position the mesh against the wall with the stud side facing inwards.
Secure in place using appropriate plugs through the studs.
Apply plaster or dot-and-dab adhesive directly over the mesh.
Proceed immediately to decoration—no extended drying process required.
 
Why Choose TM3 Mesh?
TM3 Mesh Membrane is the go-to choice for clean, quick, and effective damp isolation. Its slim profile, easy handling, and plaster-ready surface save time and labour on every job. Whether you're renovating, restoring, or building afresh, this membrane offers a reliable foundation for durable, moisture-free finishes.
 
A 3mm polypropylene cavity drain membrane suitable for direct plastering. Suitable for use as an isolating plaster membrane following remedial treatments.
Technical Data:
Raw Material:
PP
Sheet thickness:
Nominal 0.50mm
Stud height:
Approx 2.0mm
Construction height:
Approx 2.5mm
Unit weight:
0.505 kg/mÇ
Working temperature:
Max +60°C
Softening temperature:
+160°C
Linear coefficient of thermal expansion:
0.18mm/m°C
Water vapour resistance:
250m equivalent air layer
Life expectancy:
At least 50 years for defined applications.
Colour:
Clear/Translucent, Mesh – White
 
Available in 1m x 20m and 2m x 20m rolls.
 
FEATURES
PP membrane with integrated mesh layer for direct plastering
For internal application on walls above or below ground level
Compatible with other Platon membranes