- Type
- Movement beads
- Material
- PVC-U
- Product accreditation
- BBA certified
- BS EN 13914-1:2005
- Fixing
- Direct to substrate
- Glued
- Mechanically fixed
- Suitability
- External walls
- Internal walls
- Bead dimensions (mm)
- 13mm exposed width and 25mm wings each side
- Render depth (mm)
- 4mm render depth; 2-3mm plaster depth
Renderplas MJ4 is a 4mm movement joint bead manufactured to ISO 9001:2000 from exterior grade impact resistant UV stable unplasticised PVCu.
Designed for areas of render over 20 square metres and should be specified every 4-6 metres, over structural movement joints and changes of background giving a discreet attractive finish. Also for use as an internal corner with plasterboard.
Colour and appearance
Colour available: White
UV stable PVCu; guaranteed not to stain or corrode like galvanized steel beads
Performance
- Complies with BS EN 13914-1&2:2005
- BBA certified
- Class 1Y fire rated
- More cost effective than stainless steel
- Flexible plastic membrane provides a watertight seal.
- Not affected by weather and should be specified in all regions of high moisture or high salt
- Ideal for all habitable climates; eliminates cold bridging
- Dissipates shock waves
- Reduces spalling and impact damage
- Designed to outlast its metal counterparts
- Guaranteed to be fit for purpose for lifetime of the render and at least 25 years
Installation
Fixing with a continuous line of adhesive mortar is preferred on blockwork, or alternatively a bed of render.
Non-corrosive mechanical fixings can be used as well but are not required. With external wall insulation, non-corrosive fixings alone are sufficient.
PVCu beading is fast and easy to cut to length with tin snips or a fine toothed hacksaw and is safer to handle than cut metal.
Supplied in 2.5m lengths and in packs of 25 or 6.
Environment
- Locally manufactured
- 87.8% recycled content
- Low Ecopoint score of 0.004/kg installed
- Fully recyclable
- Ecologically benign; non-hazardous in water; non-hazardous if ingested; does not release substances into the atmosphere