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Guidance On Choosing Your Underlay

ACOUSTIC IMPACT SOUND REDUCTION
Higher the dB rating the better this is for impact sound reduction.
CARPET UNDERLAY OVER 40dB
Category Net Price dB Rating
TREDAIRE DREAMWALK PU Foam £38.08 46dB
TREDAIRE COLOURS RED Rubber £54.92 46dB
TREDAIRE COLOURS GREEN Rubber £51.35 44dB
CLOUD 9 CUMULUS PU Foam £33.29 43dB
DURALAY HALLMARK SUPREME Rubber £37.10 42dB
WOOD/LAMINATE UNDERLAY OVER 20dB
TIMBERMATE EXCEL Wood/Laminate £24.06 23dB
CUSH N WOOD Wood/Laminate £33.79 25dB
NOVOSTRAT SONIC GOLD Wood/Laminate £20.99 22dB
ENVOY ULTRA Wood/Laminate £10.79 22dB
THERMAL INSULATION
Higher the TOG rating the better this is for warmth.
CARPET UNDERLAY OVER 2.5 TOG
Category Net Price Tog Rating
ENVIROLAY 54oz Felt £28.09 3.42
ENVIROLAY 42oz Felt £22.89 3.25
CLOUD 9 CUMULUS PU Foam £33.29 3.10
CARPENTERS DEEPSTEP PU Foam £32.99 3.10
TREDAIRE DREAMWALK PU Foam £38.08 2.70
CLOUD 9 CIRRUS PU Foam £31.19 2.60
WOOD/LAMINATE UNDERLAY OVER 0.55 TOG
CUSH N WOOD Wood/Laminate £33.79 1.10
NOVOSTRAT SONIC GOLD Wood/Laminate £20.99 0.90
TIMBERMATE EXCEL Wood/Laminate £24.06 0.55
UNDERFLOOR HEATING
Lower TOG ratings are suitable for Underfloor Heating.
Category Net Price Tog Rating
Carpet Underlay
DURALAY HEATFLOW CARPET Rubber £58.16 0.75
Wood/Laminate Underlay
DURALAY HEATFLOW LAMINATE Wood/Laminate £60.78 0.35
NOVOSTRAT COMFORT SILVER Wood/Laminate £9.49 0.50
TIMBERMATE EXCEL Wood/Laminate £24.06 0.55
NOVOSTRAT SONIC GOLD Wood/Laminate £20.99 0.90
QUICK THERM Wood/Laminate £25.89 0.35
BUDGET UNDERLAY 
Excellent value underlays.
Category Net Price
Carpet Underlay
NOVOSTRAT GRAPHITE PU Foam £11.50
ENVIROLAY 28oz Felt £15.09
ENVIROLAY 42oz Felt £22.89
DURALAY STEP 65lb Waffle £29.69
Wood/Laminate Underlay
NOVOSTRAT COMFORT 2mm Laminate £3.49
NOVOSTRAT COMFORT SILVER Laminate £9.49
ENVOY ULTRA Laminate £10.79
FIBREBOARD Laminate £13.89
LAMI-MATE XL Laminate £18.99