Metal roofing systems including standing seam and twin skin metal cladding systems are widely used on commercial, leisure, retail and industrial projects.

The use of Rockwool thermal insulation within a typical metal roof assembly provides a uniform thermal insulation layer and additionally offers the opportunity of improving both the fire and acoustic performance of the roof construction.

To comply with building regulations in residential buildings, you may need to do SAP calculations. To provide customers with SAP 2005 services Rockwool has a partnership with BuildDesk Limited - visit BuildDesk website for more information.

Rockwool products, when used within metal roof constructions offer significant acoustic improvement to building performance.

Rockwool solutions for sound absorption requirements within the building and to sound reduction through the roof construction from either internal or external noise sources will also significantly reduce the operational environmental impact of the structure over its lifetime. 

Acoustic
Effective sound insulation is also an essential requirement where commercial or industrial operations generate noise at levels, which could be harmful to the health or efficiency of the building occupants, or present an environmental nuisance.

Rain Noise
Impact noise from rain must be considered at an early part in the roof design, due to the fact that this can significantly increase the indoor noise level. Approved Document E–Resistance to the passage of sound, 2004 Addition, requires the construction of new school buildings to meet appropriate acoustic standards. Building Bulletin 93 outlines the methods of compliance. This includes a requirement to minimise the noise of rainfall on lightweight roofs and whilst no limit is set, methods of control must be included and justified to Building Control.

BREEAM Schools 2006
The Building Research Establishment Environmental Assessment Method (BREEAM) Under Health and Wellbeing, Acoustic Performance (HW17), stipulates that credits will be awarded for new build and refurbishment projects where the indoor ambient noise levels (defined in table 1.1, BB93) during ‘heavy’ rainfall are exceeded by no more than 20dB in the design calculations. For lightweight flat roof constructions, this most onerous requirement may be achieved by a combination of Hardrock Dual Density roofing boards, Rockfon acoustic ceilings and Rockwool Flexi overlay insulation.

The control of noise pollution is an ever-increasing problem. The solution tends to be specific to each building and is dependent on the type and source of the noise. Find out more with Rockwool  SoundPro range.

The provision of Rockwool products including RW3 Semi Rigid Slab, Acoustic Membrane and Cladding Roll will alleviate disruption caused by rain noise on lightweight metal roof constructions.

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