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Mastic Asphalt

MASTIC ASPHALT

 Robust, Safe and Long Lasting

PERMANITE MASTIC ASPHALT:

ROBUST

The strongest and most robust system available on the market, our mastic asphalt never swells or shrinks, and is so water tight it can be used to seal dams and reservoirs.

SAFE

Neuchatel is non-toxic, hygienic, environmentally-friendly and recyclable. We strictly adhere to all local health and safety regulations.

LONG-LASTING

Asphalt roofing, properly designed and laid, should prove capable of lasting 50 to 60 years.
Source:  Building Research Establishment Digest 144
Asphalt and built-up felt roofing: durability

Mastic asphalt is the ultimate in protection for a wide range of construction
applications. It offers total waterproofing integrity for roofing and tanking,
acts as a tough working surface and damp-proof membrane in flooring and is
ideal for paving, offering a durable wearing surface.
It is one of the world’s most traditional construction materials and has
continued to develop with the times, even in today’s hi-tech building industry.
Today’s modern mastic asphalt with its advanced polymer formulations for
roofing and paving and seamless application is the finest material for flat
roofs, decks and a whole range of construction applications – in fact, any
situation where waterproofing integrity is vital.
In its many forms mastic asphalt also excels in flooring and paving
applications where a smooth, seamless, durable surface is required.
It is installed by trained operatives who have undertaken the mastic asphalt
industry’s extensive training programme which lasts for a minimum of three
years to NVQ Level Two/Three, or equivalent. Few in the construction
industry can claim to have trained their people so thoroughly and for so long.
Polymer modified mastic asphalt can only be installed by MAC approved
contractors. In this way, the entire industry can offer comprehensive
guarantees with complete confidence on both labour and materials.
Most mastic asphalt applications involve roofing, both new build and
refurbishment. In spite of growing competition from a wide range of
alternative waterproofing membranes, mastic asphalt still remains the first
choice for many architects, surveyors and building owners.
Description courtesy of the Mastic Asphalt Council

EFFICIENT INSTALLATION

Installing neuchatel is fast, safe and incredibly quick to dry, so you can complete your project in a shorter time frame. neuchatel can also be laid on most types of rigid sub-structure and we can lay up to 200sqm per day

SMARTER FINISH

A variety of textured finishes are available to suit the use of your building, each one designed with longevity in mind.
whether gripping for heavy traffic, UV protection for roofing, or a coloured decorative finish.

LOW MAINTENANCE

Our Mastic Asphalt is designed to be as low maintenance as possible, and therefore requires very little cleaning, so it won’t need replacing for a very long time. Therefore it is the perfect material for areas where access is limited and irregular.

FAQ’s

SPECIFICATIONS

Where is Neuchatel from?

Neuchatel is manufactured in the UK under the BS EN ISO9001 Quality Assurance Scheme.

How robust is it?

It is the most robust system available on the market. One of the great attributes of the system is that once installed it can be used for storage and walked on without problem. Sharp objects could penetrate the membrane but this is easily repaired.

How much does it cost?

A 20mm (2x10mm) Neuchatel roofing system generally costs only slightly more than a two layer bituminous membrane system.

How long does it take to lay?

Despite being labour intensive, installing Neuchatel is surprisingly quick work.

A skilled spreading team can complete around 200sqm of open deck area every day.

You can walk on your Neuchatel roof or car park as soon as the Neuchatel has cooled enough to turn into solidified form, which is generally around an hour. It is best to leave Neuchatel system of average thickness about three hours to properly cure.

Does it smell?

The mastic asphalt that Neuchatel sources is of a very high quality. It melts very cleanly and does not give off much odor at all.

What about the fumes of the molten mastic asphalt, is it dangerous?

What looks like fumes is in fact steam rising, environmental health officers would not allow us to install a dangerous product. We strictly adhere to health and safety regulations and international codes of best practice.

What substrates are required?

Neuchatel can be laid on most types of rigid sub-structure such as concrete, pre-cast concrete deck units, timber boarding, metal decking and other proprietary decking units.

Thermal insulation materials can easily be laid as part of a mastic asphalt specification to give any required U-value.

What surface finishes are available?

A sand finish can be provided to produce a surface suitable for traffic. Alternatively a coating system must be applied for solar reflectivity and to provide a decorative finish.

How much does it weigh?

The weight of Neuchatel varies because of differing compositions. The precise coverage obtained will depend upon a number of factors such as the nature of the added coarse aggregate. For the purpose of calculating loading use 2.4 kg./m2 per mm. of thickness for the laid material. Therefore a 20 mm job weighs 48 kg.

Can You Collect Drinking Water from Neuchatel?

Neuchatel is non-toxic and is suitable for use in contact with potable water.

MASS 2350kg/m3
COEFFICIENT OF CUBIC EXPANSION 4 / 6 x 10-5/°C
THERMAL CONDUCTIVITY (DESIGN PURPOSE LAMBDA VALUE) OF 0.5 W/mK
CONTROL OF WATER VAPOUR – RESISTIVITY NO LESS THAN – CONDENSATION CONTROL 100 000 MN8/(gm) 20 000 MN5/(gm)
SPECIFIC HEAT VALUE 1,01 x 103 J/kg K
IMPACT NOISE INSULATION VALUE 7 dB (A) by 25 mm thickness
ELECTRIC (ANTISTATIC) CONDUCTIVITY RESISTANCE 1013 Ohm/cm

PERFORMANCE

Control of water vapour

The vapour resistivity of Neuchatel can be assumed to be not less than 1000 000 MNs/(gm). For condensation control calculations a factor of 20 000MNs/(gm) may be taken (i.e. the ratio of the vapour resistivity of the material to that of still air) see also BS 6229:2003.

Resistance to water

Neuchatel is impervious to water.

Resistance to biological attack

Neuchatel is vermin-proof and rot-proof.

Fire

Because of its high mineral content, Neuchatel is virtually incombustible. Indicative tests have been performed on samples of insulated mastic asphalt roof decks in accordance with the procedures specified in (draft) European Standard prEN 1187-1 and prEN 1187-2. No significant flame spread was observed and no flame penetration occurred in either test.

Neuchatel fulfils all the external fire resistance required for a roof covering, and achieved the highest rating (P60) when tested as described in BS 476: Part 3.

Neuchatel is the only polymer modified mastic asphalt that is LPCB approved.

Thermal conductivity

Neuchatel is thermoplastic and is capable of accommodating normal movements encountered in well-designed building structures.

Coefficient of cubic expansion

The coefficient of cubic expansion is 15 x 10/°C.

Toxicity

Neuchatel is non-toxic and is generally suitable for use in contact with potable water.

Odour

Neuchatel is odourless after laying.

 
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