There are two robust details for Beam and Block Flooring:

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Beam and block floor with precast or in-situ edge beams with screed laid on Regupol® E48 resilient layer system.

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Beam and block floor with precast or in-situ edge beams using floating floor treatment.

What are Robust Details?
Robust details are construction solutions which provide an alternative to pre-completion sound testing (PCT) as a method of complying with Part E (resistance to the passage of sound) of the Building Regulations (England and Wales). 2003 Edition.

What are the benefits of using robust details?
The benefits are clear. Using robust details avoids the need to carry out PCT. This eliminates the risk and uncertainty of remedial action being required on completed floors; which may lead to potential delays in completing the property. You will be investing in constructions that add real value to the building rather than paying test fees and you will avoid the uncertainties of PCT.

Guidance Notes
The following notes are offered as general guidance on workmanship:
• Butt floor blocks tightly together
• Ensure that concrete does not enter the cavity and
bridge the two leaves
• Ensure in-situ concrete downstand is at least 75mm
wide
• Ensure floor is isolated from both walls and skirtings
• Ensure depth from top of beams to ceiling is min
300mm
• Ensure mineral fibre quilt is installed over whole
ceiling board area

Key Features
• A precast or in-situ edge beam, min 300mm wide
is required where floor beams run parallel with
flanking walls
• Infill Tray Blocks will sit below the top of the floor
beams to enable a 50mm concrete topping, min
strength class C20
• In-situ concrete infill is required to all bearing ends
• All flanking walls to be constructed from dense
aggregate blocks (1850-2300kg/m3)

Guide to E-FC-6 | Guide to E-FC-7