weber.therm 505 HDP

Grain size:
2.0 mm

Colours:
natural white and grey

Water dosage:
approx. 9.5 liters / 75 liter bag

Layer thickness:
approx. 20 - 100 mm

Drying time:
at least 3 days at + 20 °C and 60% relative humidity rate, depending on weather conditions

Storage:
The product can be stored for up to 12 months in its original unopened packaging if kept dry and protected from moisture.

Fields of application

weber.therm 505 HDP is used as underlay render with very low thermal conductivity performance.
For use on all massive exterior and interior walls of new or old buildings.
The weber.therm insulating render system consists of following components: bondcoat + insulating render weber.therm 505 HDP + reinforcement layer with woven mesh and mineral overlay render (finish top coat) according to EN 998-1.
Its low tension allows the levelling deep unevennesses (up to 100 mm) and reduces the crack risk at a large extent in combination with a reinforced mortar on top.
It provides seamless insulation layers, which adapt to all geometric forms of the substrate.
Thanks to its optimal features (open to water vapour diffusion and capillary active) it can be used as internal wall insulation without internal vapour-tight membrane in renovation areas.
For use outdoors and indoors.

Main features

• low heat conductivity
• low crack risk
• total thickness from 20 up to 100 mm
• high yield
• open to diffusion of water vapour
• for use as insulating underlay render on all massive walls in new and old buildings
• also for use as de-coupling and levelling layer on critical and uneven substrates

General notes

• Protect the fresh render from direct sunshine, strong wind or moisture rain; avoid too quick water evaporation.
• Comply with the national guidelines and/or standards (for ex. DIN 18550); if not issued and if necessary, request technical advice.
• The consumption figures mentioned in this document refer to the minimum layer thickness of the render. Due to specific substrates and application variations the consumption might vary. Exact consumption must be determined on a job site mock-up (trial area).
• Adjacent building parts must be separated from the built-in render system.

Special notes

• As a rule, weber.therm 505 HDP must be always covered with a reinforcing mortar prior to application of overlay renders (see herebelow “Application of mineral overlay renders”).
• The light reflectance value (LRV) of the top coat (overlay render) should be ≥ 20.
• Socket areas of facades must be covered with the perimetric insulation boards weber.therm EPS Sockel + bonding and reinforcing mortar weber.therm 300 (or similar)+ woven mesh weber.therm 310 + specific socket render and water-repellent paint. For full information request technical advice.