SubPrimo - Acoustic Data

SubPrimo - Total Party Floor Solution

SubPrimo installed beneath a timber floor finish above a Maxi 60 ceiling comfortably complies with the Building Regulations Approved Document E for both impact and airborne sound insulation.

Acoustic tests on SubPrimo installed above a Maxiboard ceiling carried out independently by Noise Control Services, 17/02/06, in accordance with ISO 140 parts 4 and 7. Rated to ISO 717 parts 1 and 2. Test reference numbers: NCS 20610/1-4.

Total Party Floor Solution - Section diagram

Total Party Floor Solution
Airborne			Impact
	DnT,w (dB)	DnT,w+Ctr (dB)	L'nT,w (dB)

Maxi 60, SubPrimo & Laminate Floor	60	54	49
Maxi 60 Only	53	48	57

Click here to see a graph of airborne results

Click here to see a graph of impact results

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SubPrimo - Within dwellings

Building Regulations Approved Document E - Resistance to the passage of sound building regulations stipulate that there must be a certain level of acoustic separation between rooms within a dwelling. Table 2 displays the acoustic requirements.

Table 2: Laboratory values for new internal walls and floors within: dwelling houses, flats and rooms for residential purposes, whether purpose-built or formed by material change of use.

	Airbourne sound insulation Rw dB (Minimum Values)
Floors	40

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SubPrimo Underneath Laminate Floor

SubPrimo reduces the impact noise of a typical laminate floor finish by 10dB compared to the bare floor structure. This is a significant improvement, a halving of the apparent loudness, but does not represent the total elimination of impact noise.

Test construction: 8mm laminate on SubPrimo underlay, on 18mm chipboard deck, 225 x 50mm timber joists with 100mm mineral fibre infill, 12.5mm plasterboard ceiling, fixed direct to joists.

Acoustic tests on SubPrimo carried out independently by Noise Control Services, 12/04/06, in accordance with ISO 140 parts 4 and 7. Rated to ISO 717 parts 1 and 2. Test reference numbers: NCS 40603/1-4.

SRS SubPrimo - Section diagram