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qmulus_installed Roof Insulation Technical Info | Jet Stream Max - AAA Insualtion


Jet Stream Max is a soft, granulated mineral wool thermal and acoustic insulation, manufactured in selected North American plants by melting and spinning a blend of inert, natural minerals. It has all the advantages of glasswool batting materials without the inherent installation disadvantages, so achieves superior installed performance. It is the only formaldehyde free, non-combustible, clean and durable blown insulation that has been used to insulate New Zealand roof attics since 1995.

Premium quality Jet Stream Max forms a consistent white layer similar to cotton wool in accessible roof attics. It eliminates energy wasting gaps, joints or vented cavities between the insulation and lining common with blanket or batting. Jet Stream Max is packed in USA branded Atticguard™, AtticPro™ or ClimatePro™ white plastic bags.

Performance

Thermal Effectiveness
Total (installed) thermal effectiveness of Jet Stream Max is superior to batting or blanket, as it covers the full ceiling – including over and under timber joists – without joints, gaps, thermal bridging, or vented cavities commonly found between linings and batting or blanket insulation.

Batting or blanket materials need at least two layers to achieve the same installed thermal effectiveness of Jet Stream Max that only requires simpler installation of the design thickness and weight.

Compliance with NZ Building Code (NZBC) clause H1.3.1 (a) and H1.3.2 with Jet Stream Max is achieved via H1/AS1, clauses 2.1, 2.2 and 2.3. The minimum Total R-values of R2.9 / R3.3 (depending on zone) stipulated in Tables 1 and 2 of NZS4218 and NZS 4243, are exceeded respectively by the grey shaded figures in Table 1, below. Alternatively, should Licensed installers complete a design on an individual building in accordance with NZS4218 calculation method, other R values specified in Table 1 will comply.

Acoustic Effectiveness
Jet Stream Max provides effective sound absorption and reduces transmission of sound through roof attic or floor cavity assemblies. Jet Stream Max greater than 150mm deep will provide similar sound transmission co-efficient (STC) to any tested assembly with glasswool batting.

RODENT RESISTANT

Rodents like mice and rats can tend to get into roof spaces of houses. With Jet Stream Max, the mobility of rodents is hampered. In fact, they are repelled by homes with Jet Stream Max insulation! A lot of batting or blanket systems enable rodents to simply run across the top of the insulation. But Jet Stream Max is a lot thicker and heavier, reaching in all hard to get to places and filling up gaps entirely. This ultimately hinders the movement of rodents and their entry! Mice and rodents are also not attracted to blown-in insulation like Jet Stream Max. The product is not a food source to them and it is less than ideal for burrowing and nest making. Jet Stream Max is extremely effective for rodent proofing.

BUILDING CODE COMPLIANCE

This designated “Design”, “Construction” or “Construction without Building Consent” statement covers the use of Jet Stream Max to meet or exceed the Australian and NZ Building Code sections B2, E3, F2, H1 requirements, when used in buildings at any geographical location in accordance with this document.

For attics, BCA’s need only inspect that material thickness and weight is in accordance with the thermal effectiveness design specified. The R-values stated in this document are at the lowest realistic blown densities and the material is sold by weight, so any change should be positive. Licensed installers must state the installed thickness and weight installed (bales) on a card affixed near the attic access & provide site records to the BCA upon request.

SAFETY

Fire Properties
Jet Stream Max is non-combustible, and needs no additional treatment to prevent the spread of flame. It is the ONLY locally available blown insulation to demonstrate compliance with the rigorous requirements of ASTM E136-82 for fire properties.

Health Effects
Jet Stream Max complies with NZBC section F2.3.1, as non-hazardous material. It’s a low bio-persistent, formaldehyde free mineral wool, which is odourless and does not provide food for vermin. The product does not represent a health risk to installers or occupiers of insulated buildings.

Jet Stream Max is not dusty or a skin irritant, however face masks and overalls should be worn when working with all insulation materials.

DURABILITY

Jet Stream Max will satisfy the requirements of NZBC clause 2.3.1(a) & B2/AS1 Table 1 of 50 years durability in accessible roofs at the correct installed density. Field monitoring indicates long-term settlement is less than 3% in ceilings.

Design Density (Minimum Installed)
Ceilings: 5.5 kg/m3 At the maximum installed density Jet Stream Max complies with the Gib specified maximum insulation weight of 3kg/m2 up to R-value of R6. If R-values exceeding R6 are required, consult Safe-R Insulation (NZ) Ltd.

Corrosiveness
Jet Stream Max does not promote corrosion on metal building components

Moisture Effects
Jet Stream Max is unaffected by humidity or water. It can contribute to NZBC section E3.3.1 and complies with E3/AS1, section 1.1. If wetted, thermal resistance will be completely restored, when dried.

APPLICATIONS & LIMITATIONS

Jet Stream Max is designed to provide effective thermal and acoustical insulation for dry, horizontal roof attics or floor cavities lined on both sides.

It is not suitable for application on surfaces exceeeding a 300 incline, which should have double layer of batting fitted, to provide the same Total R-value.

It is not suitable for skillion roof or wall cavities, where the external cladding may be wet on it’s inner face. Use water repellent CavityWall™ insulation (CWI) for these applications.

INSTALLATION

Installation of Qmulus® is much less demanding than batting or blanket installation – no cutting, avoiding edge compression, or need to eliminate the vented cavity between the material and internal lining – so is much more likely to achieve theoretical design R-values in situ- particularly in truss / batten roof construction.

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