ROCKWOOL party wall insulation can reduce thermal transmission in detached properties and flats.
Made from natural stone wool, our products help to regulate temperatures and reduce the impact of noise from neighbouring properties.
Find out how our range can boost the energy efficiency of your project
To help you in the best possible way, we offer a range of tools for both professionals and homeowners.
Separating party walls are the dividing walls between two attached properties. They are constructed from solid materials, such as bricks and concrete blocks, or built out of a framed wall construction, using wooden studs or metal frames.
There is usually a gap between party walls called an air cavity, which separates the buildings. Hot air can seep into this cavity, through edges that are exposed to the elements outside, while cool air rises and escapes the building.
This heat gain can drive up cooling bills and create a less energy efficient home. Noise can also be an issue, as sound can easily travel through this hollow space. The increased amount of hot air flowing into a building can make the occupants uncomfortable1.
Party wall insulation fills the gap in-between, ensuring cool air and sound are captured and contained – improving acoustic and thermal performance.
High-quality insulation helps to:
To work out the amount of insulation you’ll need, measure the length and width of the space you’re installing in and multiply – this will give you the m² area of the wall.
It’s also helpful to know the depth of the cavity wall space. This will determine what insulation thickness you require and how many layers you’ll need.
Use our ROCKWOOL U-value calculator to determine the thermal performance of the building’s walls and possible cost savings. For more details on technical specifications, visit our ROCKSPEC Specification Toolkit.
ROCKWOOL party wall insulation harnesses the power of stone wool. We offer high density products, for a rigid fit in solid walls, and low density slabs easily placed in wooden or metal framed constructions. Our solutions provide all-round safety and comfort.
Key benefits:
The DUO Residences twin tower development in Ophir-Rochor, Singapore, involved construction of 660 luxury flats in one tower, while the other included a five-star hotel, office and retail units.
Architects were keen to reduce noise transfer between luxury units and penthouses. They also wanted to increase thermal performance.
ROCKWOOL insulation was chosen for separating walls, thanks to its excellent sound absorption qualities.
Fire resilience was another crucial factor. Stone wool not only allows walls to ‘breathe’ by letting air pass through, boosting air quality, but also withstands temperatures of up to 1000°C.
There are different approaches to installing our party wall insulation products, depending on whether you are working on a new build or a renovation.
During a new build, you can easily incorporate one of our various solutions to improve the thermal, sound and fire resistant properties of a seperation party wall.
When renovating a party wall, to inmprove its performance, a good solution would be to construct a dry wall solution against thr separation wall. Alternatively, you could have your wall inspected by an installer and a insulated with our granulate solution.
in some countries, products are available that can be placed at the rafter line or adjacent outer wall - to avoid heat loss at the edge of the construction.
Installation guides can be found on our individual product pages.
Key tips:
ROCKWOOL party wall insulation is manufactured in an environmentally-friendly way.
We use sustainably-sourced diabase rock to create our stone wool solutions9. More than 38,000 times the amount used to manufacture ROCKWOOL products is generated naturally each year10.
Our stone wool products can help reduce energy bills and nuisance noise, improving the lives of those living and working in buildings with ROCKWOOL insulation.
Stone wool insulation is:
Once our products have been used, they can also be recycled – ensuring those resources aren’t wasted11.
Please check with your local government body for schemes which mean you could be eligible for financial support or refunds, especially in the case of renovations.
[1] WHO Housing and Health Guidelines - https://www.ncbi.nlm.nih.gov/books/NBK535294/
[2] https://www.rockwoolgroup.com/why-stone-wool/fire-resilience/
[3] https://energysavingtrust.org.uk/home-insulation/cavity-wall
[4] https://energysavingtrust.org.uk/home-insulation/cavity-wall
[5] https://www.rockwoolgroup.com/siteassets/sailgp/downloads/rockwool-b2c-guide-v5.pdf
[6] https://www.rockwoolgroup.com/why-stone-wool/thermal-properties/
[7] https://www.rockwoolgroup.com/why-stone-wool/acoustic-capabilities/
[8] DTU Civil Engineering Prof. Carsten Rode, “Influence of moisture on performance of mineral wool insulation” (2018) Source link
[9] ROCKWOOL Group, Sustainability Report 2018, p. 20.
[10] ROCKWOOL Group, Sustainability Report 2017, p. 22.
[11] https://www.rockwoolgroup.com/about-us/sustainability/#Sustainable
[12] https://www.rockwoolgroup.com/about-us/sustainability/#Sustainable
