There are some important things to know regarding insulation and installing.
We encourage you to save yourself some time by having a look through the relevant material to get the best from your home insulation.

SAFETY

 

ELECTRICAL HAZARDS

It is extremely important to be wary of electrical wiring. Take note where it is and ensure if cutting or stapling that you do so well clear of wires. If using electrical equipment (such as a stapler), use an RCD safety device.

Avoid pushing wiring forward against interior wall linings, as this can potentially be a hazard where people may put nails, etc into the walls. If you are retrofitting an old house, make sure there is no unsafe old, live wiring.  You may need to get an electrician to check and clear any problems.

 

FIRE HAZARDS

Keep insulation clear of hot devices or surfaces such as downlights and chimney flues. There are legal requirement specifications for this according to situation. Refer to the insulation compliance standards guide.

 

SUPPORT IN CEILINGS

Most ceilings are not built to take any weight between rafters. If you accidentally step or kneel on the plasterboard you will fall through! A set of boards to lay across rafters and alternately shift along as you go may be a suitable solution.

 

INSECTS

It pays to check for whitetail spider infestation before crawling around in ceilings or underfloors. You may be able to tell by whether there are many other spiders about – if not, there could be whitetails (which eat the other spiders). If there is a concern you should wear protective skin covering clothing, or call in an exterminator.

 

HAZARDOUS OBJECTS

Take care to check for hazardous objects –ᅠbroken glass; rusty nails sticking out; protruding pipes; things to bump your head on!...  When working underfloors, it may be best to use mats to work on, or install ground cover sheeting first.

 

 

COMPLIANCE STANDARDS

 

Please read or download NZS4246 which is the New Zealand standard for installing insulation..

There are requirements to stipulate safe and effective use and performance of insulation. These include specifications for the thickness R value you will need; clearance from downlights; climate zones; access to electrical and plumbing, etc. These standards are required to be met for building code compliance and they also ensure your home is insulated safely and most effectively.

 

QUICK EASY HANDLING

 

Terra Lana is completely safe to handle, is non toxic and does not require breathing masks or protective clothing. Terra Lana Ceiling insulation, Wall insulation and underfloor insulation can be easily ripped to length by hand. If you need to cut across the grain, this can be done with a pair of wool shears or a sharp craft knife.

 

 

R VALUES AND CLIMATE ZONES

 

NEW ZEALAND BUILDING CODE CLIMATE ZONES

Insulation's effectiveness in restricting the flow of heat is measured by its R Value. The higher the material's R value, the greater the material's heat insulation effectiveness and slower the heat flow through it.

 

The New Zealand Building Code specifies minimum R values for our 3 climate zones, which broadly are:

 

ZONE 1 :  The Thames-Coromandel and Franklin districts and all districts north of these.

 

ZONE 2 :  All the North Island excluding zone 1.

 

ZONE 3 :  The Taupo and Ruapehu districts and part of the Rangitikei district plus all of the South Island.

 

The requirements in each zone are set out in the New Zealand Building Code.

 

BRANZ (Building Research Association of New Zealand) has several checklists, worksheets and guidelines that can help you determine what R level insulation you need.

 

Design Navigator is another user friendly tool for establishing required R values.

 

HOW TO BUY TERRA LANA INSULATION

 

Terra Lana insulation products are sold throughout New Zealand and can be purchased directly from Terra Lana or from your local building merchants:

 

Hardie & Thomson

Bunnings

Carters

ITM

Placemakers

Mitre 10

 

HARDIE & THOMSON (contact details) » HARDIE & THOMSON »» CHRISTCHURCH1062 Colombo StreetEdgewareChristchurchNew Zealand 8014 Phone: (03) 366 4044Fax: (03) 379 1776Email: enquiries@hardie-thomson.co.nz Trading Hours:Monday - Friday:     7.30am - 5.00pmSaturday:               8.30am - 12.30pm

 

OTHER TERRA LANA PRODUCTS

For other Terra Lana products, such as Weed Mat, Grasstrike or Tuf Truk Furniture Blankets contact us directly.

 

TRADE

For trade contact us directly.

 

If you would like the product installed, or want to take advantage of a subsidy (e.g Warm Up New Zealand: Healthy Homes), you can fill in our enquiry form or call us at 0800 485 262 for your local recommended installing company.

 

INSTALLERS

 

INSTALLATION SERVICE PROVIDERS

There are many companies around New Zealand offering installation services for home insulation. To get the most from your Terra Lana insulation, it is best to use a provider who knows all about Terra Lana insulation.  Of course you'll also want to know you are getting a good deal – not just a cheap one – with professionals who know what they are doing and comply with quality and safety standards for insulation installation.

 

Terra Lana can recommend:

EnergySmart

EnergySmart are insulation installing experts who have been at it since Noah stuffed wool in the ark ceiling..  They provide a free assessment service, and are qualified as EECA administrators (they can install for government subsidies from EECA's Warm Up New Zealand programme). You will receive a certificate of compliance and quality guarantee.

You may get 'Charlie' to do it cheaper, but we don't think you'll find better value with their efficient, professional and very competitive service.

Green Dog Canterbury

Awarua Synergy Southland

Absolute Energy Nelson

 

 

WARRANTY

 

Terra Lana offer a 50 year warranty » on all Terra Lana Wool blend insulation products.

 

  • INSULATION PRODUCTS SPECIFICATIONS TABLE »   (Click to expand to view)

    PRODUCT R VALUE THICKNESS LENGTH AREA/BALE BRANZ CODE
    WALL Stud Frame Walls (roll width 370mm for studs at 400mm centres)
    R2.2 90 mm 2.60 m 7.7 m² Y 22.90.370
    R2.4 90 mm 2.60 m 6.7 m² Y 24.90.370
    R2.6 98 mm 2.60 m 6.7 m² N 26.98.370
    R3.2 140 mm 2.60 m 6.7 m² Y 32.140.370
    Stud Frame Walls (roll width at 570mm for studs at 600mm centres)
    R2.2 90 mm 2.60 m 8.9 m² Y 22.90.570
    R2.4 90 mm 2.60 m 7.4 m² Y 24.90.570
    R2.6 98 mm 2.60 m 7.4 m² N 26.98.570
    R3.2 140 mm 2.60 m 7.4 m² Y 32.140.570
    Stud Frame Walls (roll width at 765mm for dwangs or nogs at 800mm centres)
    R2.2 90 mm 4.00 m 6.1 m² Y 22.90.775
    R2.4 90 mm 4.00 m 6.1 m² Y 24.90.775
    R2.6 98 mm 4.00 m 6.1 m² N 26.98.775
    R3.2 140 mm 4.00 m 6.1 m² Y 32.140.775
    Masonry Wall (roll width at 570mm for strapping / battens at 600mm centres)
    R1.0 40 mm 5.00 m 5.7 m² N 10.40.570
    R1.2 50 mm 5.00 m 5.7 m² N 12.50.570
    CEILING Skillion Roof BLANKET Insulation (roll width at 570mm for rafters at 600mm centres). Allow 25mm airgap between insulation and building paper
    R2.6 145 mm 4.00 m 9.1 m² Y 26.145.570
    R3.2 140 mm 2.60 m 7.4 m² Y 32.140.570
    R3.2 165 mm 4.00 m 9.1 m² Y 32.165.570
    R3.6 180 mm 3.50 m 8.0 m² Y 36.180.570
    R4.0 180 mm 3.50 m 8.0 m² N 40.180.570
    Skillion Roof SEGMENT Insulation (segment width at 570mm for rafters at 600mm centres).  Allow 25mm airgap between insulation and building paper
    R2.6 145 mm 1.20 m 8.9 m² Y 26.145.570s
    R3.2 140 mm 1.20 m 6.8 m² Y 32.140.570s
    R3.2 165 mm 1.20 m 8.9 m² Y 32.165.570s
    R3.6 180 mm 1.20 m 7.5 m² Y 36.180.570s
    R4.0 180 mm 1.20 m 6.8 m² N 40.180.570s
    Truss Roof BLANKET Insulation (roll width at 870mm for trusses at 900mm centres)
    R1.9 105 mm 5.00 m 7.0 m² Y 19.105.870
    R2.6 145 mm 4.00 m 7.0 m² Y 26.145.870
    R3.2 165 mm 4.00 m 7.0 m² Y 32.165.870
    R3.6 180 mm 3.50 m 6.1 m² Y 36.180.870
    R4.0 180 mm 3.50 m 6.1 m² N 40.180.870
    Truss Roof SEGMENT Insulation (segment width 435mm for trusses at 900mm centres)
    R2.6 145 mm 1.20 m 6.8 m² Y 26.145.435s
    R3.2 165 mm 1.20 m 6.8 m² Y 32.165.435s
    R3.6 180 mm 1.20 m 5.7 m² Y 36.180.435s
    R4.0 180 mm 1.20 m 5.7 m² N 40.180.435s
    Truss Roof Double Layer Ceiling (roll width at 870mm for trusses at 900mm centres)
    R VALUE
    SYSTEM
    LAYER
    BOTTOM
    LAYER
    TOP
    THICKNESS LENGTH AREA/BALE BRANZ CODE
    R2.8 R1.4 R1.4 85 + 85 mm 6.00 m 2.6 m² Y 28.170.870d
    R3.2 R1.6 R1.6 100 + 100 mm 5.00 m 2.2 m² Y 32.200.870d
    R3.8 R1.9 R1.9 105 + 105 mm 5.00 m 4.4 m² Y 38.210.870d
    R4.5 R1.9 R2.6 105 + 145 mm 4.00 m 3.5 m² Y 45.250.870d
    R5.2 R2.6 R2.6 145 + 145 mm 4.00 m 3.5 m² Y 52.290.870d
    R6.4 R3.2 R3.2 165 + 165 mm 4.00 m 3.5 m² Y 64.330.870d
    R7.2 R3.6 R3.6 180 + 180 mm 3.50 m 3.0 m² Y 72.360.870d
    UNDER
    FLOOR
    Underfloor (roll width at 460mm for joists up to 450mm centres)
    R1.4 88 mm 5.50 m 5.1 m² Y U14.88.460
    R1.6 98 mm 5.00 m 4.6 m² N U16.98.460
    R1.8 100 mm 4.00 m 3.7 m² Y U18.100.460
    R2.6 140 mm 4.00 m 7.4 m² N U26.140.460
    Underfloor (roll width at 580mm for joists between 450mm and 570mm centres)
    R1.4 88 mm 5.50 m 6.4 m² Y U14.88.580
    R1.6 98 mm 5.00 m 5.8 m² N U16.98.580
    R1.8 100 mm 4.00 m 4.6 m² Y U18.100.580
    R2.6 140 mm 4.00 m 9.3 m² N U26.140.580
    ACOU-STIC CHATTERBLOCK® Acoustic Insulation (thermal rating R2.2, thickness 90mm)
    R VALUE APPLICATION THICKNESS LENGTH AREA/BALE ACCOUSTIC
    RATING
    CODE
    2.2 Wall 
    (studs 400mm centres)
    90 mm 2.60 m 7.7 m² 167 rayls A22.90.370
    2.2 Wall
    (studs 600mm centres)
    90 mm 2.60 m 8.9 m² 167 rayls A22.90.570
    2.2 Midfloor 
    (joists 450mm centres)
    90 mm 4.00 m 6.7 m² 167 rayls A22.90.420

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