Rockwool Ltd
3
Description
Rainscreen Duo Slab Is A Dualdensity
Insulation, Meaning That The
Outer Layer Of Each Slab Is Manufactured
To A Higher Density Than The Remainder
Of The Product. This Results In A Robust
Outer Surface Designed To Withstand The
Rigours Imposed On Site, And A Resilient
Inner Face Designed To Accommodate Any
Irregularities In The Substrate.
A Water-Repelling Agent Is Added To The
Product During Manufacture, Which In
Combination With A Robust Outer Surface
And Random Fibre Orientation, Prevents
Water Transmission Through The Insulation
Layer. As Such The Slab Is Well-Designed
For Use In Conditions Of Severe Climatic
Exposure.
The Product Can Be Easily Fitted Around
Brackets And Other Awkward Details,
And When Tightly Butt Jointed The Fibres
Of Adjacent Slabs Will Knit Together
To Provide A Continuous Thermal
Performance – Eliminating Heat Losses
That Could Otherwise Be Caused By Gaps
And Joints.
Its Unique Dual-Density Construction Also
Means That Rainscreen Duo Slab
Requires Fewer Fixings, Making It A Costeffective
Solution That Is Quick To Install.
Applications
Rainscreen Duo Slab Is Designed
For Use Within Ventilated Cladding
Systems, As Well As Sealed Systems Such
As Curtain Walling.
* Effective from 3 December 2025 * Free delivery on order over €400, applies to Small & Light, Large & Heavy items within zone 1 only.
Zone Indicator:
To help you understand delivery availability, every item displays a zone icon, icons appear on the top-right corner of each product image:
Types of goods
Available zones
Descriptions
Small & light items
All Zone area
Items under 20kg weight & under 2m long, (some fragile items may not be included e.g. glass/mirrors)
Large and bulky items Extra Large items
Zone 1 & 2 only
Wet & hazardous bagged, items over 20Kg weight & oversized; Euronics white goods, TVs of all sizes.
Large Paint items (6L / 6L+)
Zone 1 only
Large hazardous items (6L+) - available for collection
Available zones
Indicator
Descriptions
All zone area
This icon with all zone area in green, indicates this items can be shipped to all Zone.
Zone 1 & 2 only
Zone 1 & 2 in green and zone 3 greyed out, indicates this product can only be shipped to Zone 1 and 2
Zone 1 only
Zone 1 in green zone 2 and zone 3 are greyed out, indicates this product can only be shipped to Zone 1 only.
Old Appliance Collection:
When you buy a large appliance, we’ll collect your old one for free through WEEE Ireland. Please ensure it is uninstalled, disconnected, and ready for pickup. Collection is like-for-like and takes place at the front door or apartment entrance. Restrictions may apply based on access and item type.
At TJ O'Mahony we will exchange or refund any Retail unused product returned to us in its original condition within 30 days of receiving it (*)You can return any unused product to us in its original condition for a full refund or exchange within 30 days of delivery.
This right to return does not apply to products that are non stock and only available to order such as catalogued doors, catalogued bathroomware and mixed paints which are made especially for your order.
Please note that we are unable to accept returns on certain bagged building products and materials, including (but not limited to) hard wall, cement, bonding, slates, and ridges. We appreciate your understanding and recommend checking product requirements carefully before purchase.