Technical Mesh SW-1
Reinforcement mesh embedded into the liquid layers of the system on felt and PVC membrane build-ups.
Prices
| Pack | Retail price |
|---|---|
| 0.25 m × 100 m roll | £198.00 |
| 0.5 m × 100 m roll | £344.00 |
| 1 m × 100 m roll | £489.00 |
| 2 m × 100 m roll | £972.00 |
HYDRONYLON Approved Contractors buy at preferential trade rates.
HYDRONYLON LTD is not currently registered for VAT, so no VAT is charged - the prices shown are the final prices payable.
Where it fits in the system
On felt roofs, Technical Mesh SW-1 is embedded into the second coat of HYDRONYLON HP. On PVC membranes it is worked into the first coat of HYDRONYLON HN by brush. The mesh reinforces the cured layer at details and across full surfaces.
How the system worksTechnical parameters
| Role in the system | Reinforcement on felt and PVC membrane build-ups |
|---|---|
| Roll length | 100 m |
| Roll widths | 0.25 m, 0.5 m, 1 m, 2 m |
| Overlap on felt build-ups | Min. 10 cm |
| Overlap on PVC membranes | Min. 5 cm |
| Usage on felt build-ups | Approx. 1.05 m² per m² of roof |
| Usage on PVC membranes | Approx. 1.1 m² per m² of roof |
System performance (ETA-23/0735)
| External fire performance | B(roof)(t1) |
|---|---|
| Reaction to fire | Class E |
| Watertightness | Watertight |
| Wind load resistance | Pass (> 50 kPa) |
| Working life category | W2 (10 years) |
| User load category | P3 (Normal) |
| Roof slopes | S1 to S4 |
| Surface temperature range | -20°C (TL3) to +80°C (TH3) |
| Minimum dry film thickness | Felt 1.8 mm, metal 0.7 mm, mineral 0.75 mm, PVC 1.2 mm |
| Notified Body | No. 1454 (Łukasiewicz - Warsaw Institute of Technology) |
Coverage
- Allow approx. 1.05 m² of mesh per m² of roof on felt build-ups and approx. 1.1 m² per m² on PVC membranes, which accounts for the required overlaps.
- Example: a 50 m² felt roof needs approx. 52.5 m² of mesh; a single 1 m × 100 m roll (100 m²) covers this with margin.
- Complete build-up materials costs per m² that include the mesh (materials only): felt £34.89, PVC membrane £32.61.
Application notes
- Embed the mesh into the wet second coat of HYDRONYLON HP on felt build-ups.
- On PVC membranes, work the mesh into the wet first coat of HYDRONYLON HN, applied by brush.
- Maintain overlaps of at least 10 cm on felt build-ups and at least 5 cm on PVC membranes.
- Allow a minimum of 24 h before the next coat is applied over the embedded mesh.
Downloads
- Retail price list 2026 (PDF)
- European Technical Assessment ETA-23/0735 (PDF)
- UK Declaration of Performance 2026 (PDF)
- Technical Mesh SW-1 technical data sheet (PDF): available soon.
Frequently asked questions
Which roll widths are available?
Technical Mesh SW-1 is supplied in 100 m rolls in four widths: 0.25 m, 0.5 m, 1 m and 2 m.
What overlap does the mesh need?
Maintain overlaps of at least 10 cm on felt build-ups and at least 5 cm on PVC membranes.
Is the mesh always required?
The mesh is part of the standard build-up on felt, embedded into the second coat of HYDRONYLON HP, and on PVC membranes, where it is worked into the first coat of HYDRONYLON HN. The standard metal and mineral build-ups do not include mesh.