50mm Rockwool DD External Wall Dual Density Slab is a façade thermal and acoustic insulation slab developed for insulated render systems in new build and refurbishment projects to prevent the spread of fire.

Rockwool DD is a high-performance, non-combustible stone wool slab used to insulate the walls of staircases, external walls of multi-family buildings, also as insulation from the side of an unheated room and underground garages.

The insulation slabs have achieved A1 class, which is the highest fire rating for non-combustible material. 

Rockwool insulation helps to prevent the spread of fire and can withstand temperatures up to 1000ºC.

Top-class Dual Density slabs are ideal for use with breathable polymer thin coat renders and can be placed on walls made of silicate, brick, block, reinforced concrete and ceramic blocks.

External Wall DD Slab is an insulation product compatible with a wide range of external wall insulation systems.

The boards are manufactured using 'dual density' technology, the outer surface of each slab features a clearly higher density than the underside.

This provides a firm and robust surface for the application of metal pin fixings and top coat render, while the resilient underside can accommodate unevenness in the substrate.

Once correctly installed, adjacent tightly-butted slabs will effectively 'knit' together to provide a sustained insulation layer, terminating thermal bridging caused by gaps in the insulation structure.

Complete external wall insulation made of ROCKWOOL Dual Density is highly durable and maintains its functional properties throughout the entire life of the building.

Stone wool insulation will work as effectively as the day it was installed - even after 50 years of use.

Rockwool insulation saves fuel costs and energy in use and relies on trapped air for its thermal properties.

Dual Density insulation is made from renewable resources and does not contain gases that have ozone depletion potential or global warming potential (ODP and GWP free).

Rockwool External Wall Slab for Insulated Render System is 97% recyclable! 

Specification:

Width: 600mm

Length: 1200mm

Board Coverage: 0.72m2

Pack Coverage: 2.88m2

Density: 110kg/m3

R-Value: 1.39m2K/W

Thermal Conductivity: 0.036W/mK

Fire Rating: A1 Non-combustible

Key points:

 · Class A1, non-combustible material.

 · Thermal conductivity (λ - lambda value) of 0.036W/mK.

 · Vapour-permeable material.

 · Eco-friendly made from molten volcanic rocks.

 · Reduction of thermal energy consumption thanks to very good thermal insulation.

 · Reduction of thermal bridges thanks to the continuity of insulation.

 · Acoustic performance - reduce the impact of sound.

 · Durable and highly aesthetic façade insulation.

 · Suitable for new build and renovation.

 · Helps to effectively prevent the spread of fire.

 · Withstand temperatures up to 1,000ºC (1,800ºF).

Applications:

 · Staircases

 · Multi-family buildings

 · Balcony loggias.

 · Sandwich walls.

 · External wall insulation systems.

 · Framed wall surfaces.

 · Solid brick and block walls.

 · Continuous outer layers of frame walls.

 · Cavity block and brick walls.

 · Cavity dense block walls.

 · Thin coat rendering.

 · Gaps in closed or ventilated three-layer walls.

 · Insulated render systems.

 · ETICS - External thermal insulation composite systems.

Health and Safety:

 · Wear eye protection, safety gloves and a mask!

 · Use a premium insulation adhesive to fix the slabs to the substrate.

 · Use a premium metal pin fixings to fix the slabs to the substrate.

Storage:

 · Keep in a dark and dry place.

 · Avoid excess heat.

 · Avoid exposure to UV light.

Certification:

 · BS EN ISO 9001:2008.

 · FM 02262.

 · ISO 50001:2011.

 · ISO 14001:2015.

 · Fire classification of A1 - EN13162.

*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 

*Special Product - Non returnable cancelable.