Key Benefits

• Highest performance timber floor option for loud noise and music — Green Glue Joist Tape, dual MLV layers, and SilentCork3 combine to deliver significantly better airborne and impact noise reduction than standard mat and underlay systems
• Joist-level decoupling with Green Glue Joist Tape — applied directly to the joists before the new deck is installed, reducing vibration transfer at the structural level — a common weak point in timber floors
• 22mm STS TG4 structural deck — heavier and stiffer than the 18mm Essential board, providing a more solid base for the acoustic layers above and improving overall mass and rigidity
• 2 layers of 5kg MLV — double mass loaded vinyl with staggered joints adds dense mass to help reduce airborne sound transmission, including bass-heavy noise and music
• SilentCork3 Acoustic Underlay with Mapei VS90 adhesive system — SilentCork3 provides additional impact reduction and a suitable bonding surface for the LVT finish, and is compatible with the Mapei Ultrabond Eco VS90 Plus adhesive included in the system
• Suitable for bonded LVT installations — the SilentCork3 and Mapei VS90 combination provides a bonded LVT-ready substrate as part of the complete system
• Advanced DIY system — requires lifting existing floorboards; suitable for competent DIYers or tradespeople comfortable with structural floor work
• Built-in 5% waste allowance — calculator quantities include a 5% overage to account for cuts and waste, reducing the risk of under-ordering on site

Important Notes

• This is an advanced DIY system and involves removing existing floorboards
• Results will vary depending on joist spacing, void depth, existing ceiling below, and flanking paths
• Sealant quantities are an approximation only and should be treated as a guide
• The calculator is provided as a guide only, and final quantities should always be checked before ordering
• Always follow the adhesive and flooring manufacturer’s guidance for installation and curing times
• If the floor below is a sensitive area, consider addressing the ceiling below as well for best results

Installation Summary 

1. Lift and remove existing floorboards
2. Apply Green Glue Joist Tape to joists
3. Install 22mm STS TG4 using 50mm cement board screws and PU adhesive
4. Install first layer of 5kg MLV
5. Install second layer of 5kg MLV, staggering joints where possible
6. Tape joints and seal perimeter gaps with AC95
7. Install SilentCork3
8. Use Mapei VS90 as required for a correct bonded LVT installation

For a more detailed installation guide click here.

Calculator Disclaimer 

This calculator is intended as a guide only. Advanced Acoustics will not be held responsible for any decisions made as a result of using this calculator.