ROCKWOOL insulates new homes in Adamstown, Co. Dublin

  • 19 Jun 2023

Hugh McGreevy takes pride in delivering energy efficient homes, constructing to Building Energy Rating (BER) A rating, and to a quality that stands the test of time. ROCKWOOL was invited to present the benefits of NyRock technology, and how the latest product, NyRock Cavity Slab 032 could help deliver the required fire and thermal performance.

Hallwell by Hugh McGreevy & Sons Ltd is a development of 100 new homes being constructed as part of a larger residential area in Adamstown, Co. Dublin, Ireland. Included in the scheme are duplex homes and apartments in three- and four-storey blocks due to be completed in mid-2023.

The homes, designed by Hugh McGreevy’s in-house team, were planned with a masonry cavity wall construction and a preference for stone wool insulation due to its non-combustible properties.


Working with the developer, ROCKWOOL conducted all U-value calculations for the project.  These demonstrated that NyRock Cavity Slab 032 would achieve the target U-value of 0.18 W/m2K within the 200mm cavity space.

This led to the specification of 14,000 square metres of 160mm NyRock Cavity Slab 032 in a partial fill application. To satisfy fire regulations in cavity applications, 9,000 metres of ROCKWOOL TCB Cavity Barrier was also specified.

In addition to its combined thermal and fire performance, the high density semi rigid composition of NyRock Cavity Slab 032, is proven to perform for the lifetime of the building.[1]

This supports Hugh McGreevy & Sons’ focus on quality and longevity…

Hugh comments: “ROCKWOOL was our first choice for non-combustible insulation due to their reputation in the market and our experience with their stone wool products on previous projects.

“NyRock Cavity Slab 032 has enabled us to achieve the same U-values using less material, which was an additional bonus.

“Our installers found NyRock Cavity Slab 032 very easy to install. The insulation provided no problem for the bricklayers, even in adverse weather conditions with some heavy rain. The window fitters found it equally easy to work with when they had to cut to fit it around windows.

“ROCKWOOL NyRock Cavity Slab 032 has BBA certification, is easy to source, and has an experienced technical team able to answer any questions very quickly. This ultimately made it easy for us to adopt NyRock for this development.”

With ROCKWOOL NyRock Cavity Slab 032, the new homes in the Hallwell development will meet the required U-value of 0.18 W/m2K. Alongside its improved thermal efficiency, NyRock Cavity Slab 032 still delivers all the additional benefits of stone wool insulation including the ability to be recycled indefinitely, and acoustic and fire performance.

[1] BBA Certification 22/6252: stated as sufficiently stable to remain effective as insulation for the life of the building.


United Kingdom,
CF35 6NY

Phone: 01635 862621
Fax: 01656 862302

Visit the ROCKWOOL website

Leave a Reply

Latest news


CPD Approval for Delta Membrane Systems Limited

Delta Membrane Systems Limited is delighted to announce its ‘Waterproofing – The Application of Concrete Combinations Type A, B, and C Systems’ Continual Professional Development (CPD) has received endorsement from the Royal Institute of British Architects (RIBA).

Posted in Articles, Building Industry Events, Building Industry News, Building Products & Structures, Building Services, Concrete, Cement, Admixtures, Continuing Professional Development (CPD's), Damp & Waterproofing, Facility Management & Building Services, Information Technology, Membranes, Restoration & Refurbishment, Retrofit & Renovation, Seminars, Walls


CUPA PIZARRAS natural slates for Leeds domestic project

CUPA R12 Excellence has been installed as part of a roof refurbishment project at Parkstone, a stunning Edwardian residence on the edge of Roundhay Park, Leeds.

Posted in Articles, Building Industry News, Building Products & Structures, Building Systems, Case Studies, Concrete, Cement, Admixtures, Restoration & Refurbishment, Retrofit & Renovation, Roofs

Hambleside Danelaw

Hambleside Danelaw: SwiftRidg® - The Isle of Luing

The Danelaw SwiftRidg® Roll Top Ridge and Hip System, a new and innovative GRP product from Hambleside Danelaw, has been BRE tested to resist wind speeds exceeding 110mph.

Posted in Articles, Building Industry News, Building Products & Structures, Building Systems, Case Studies, Restoration & Refurbishment, Retrofit & Renovation, Roofs


Hush: Acoustic insulation solutions for roofing

Incorporating acoustic insulation into the design of roofs is crucial to deliver finished buildings which provide acoustically comfortable internal environments. Hush Acoustics has more…

Posted in Acoustics, Noise & Vibration Control, Articles, Building Industry News, Building Products & Structures, Building Services, Facility Management & Building Services, Insulation, Membranes, Restoration & Refurbishment, Retrofit & Renovation, Roofs, Walls