Acoustic Performance of our Concrete Blocks

The table below is extracted from Approved Document E1 (ADE) of the building regulations and shows the current performance values required of internal walls.

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PCT is intended to demonstrated compliance with requirement E1 of Approved Document E of the Building Regulations. This applies to dwellings and residential buildings. Approved Document E includes several example wall and floor constructions which, if constructed in accordance with the guidance, should achieve the acoustic performance in order to comply to the regulations. PCT must however be carried out to demonstrate compliance.

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For large developments there is a sampling approach that can be used so that not every single separating wall or floor needs to be tested. The developer needs to liaise with their local building control who will determine the necessary sampling regime.

Robust Standard Details are a collection of various new-build separating wall and floor constructions which if registered and built in strict accordance with the detail (often referred to as a ‘pattern’) eliminates the need for PCT.

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The principle behind the Robust Details approach is that each of these patterns have been extensively tested in real builds and have been shown to exceed the Building Regulation’s minimum requirements by at least 5dB. RSD constructions have been made as practical and as simple as possible and are being constantly updated and added to as requirements and regulations change.

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In order to utilize the Robust Details approach, an application must be registered with Robust Details Limited and a fee paid. Further details can be found at www.robustdetails.com.

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Our Medium Dense, Solid Dense and Airtec Aerated blocks are suitable for use with many Robust Detail patterns which is being updated and expanded year after year - please contact our Technical Department for further information.

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