Ceiling and Roof Insulation
Mammoth® ceiling and roof insulation is made from long lasting 100% polyester insulation
& is available in blankets and friction-fit segments.
DOWNLOAD Datasheets, Installation Guidelines, Warranty and other information here..
Mammoth® ceiling and roof insulation is made from long lasting 100% polyester insulation. It is non-irritant, non-toxic and is warranted not to sag over time so to keep homes warmer and more energy efficient for longer. Depending on the roof space, Mammoth has soft roll-form ceiling blankets, skillion roof and or friction-fit ceiling batten insulation sections to suit.
Mammoth Ceiling Blanket Insulation
We all know heat rises and it’s estimated that 30-35% of heat loss from an uninsulated house is through the ceiling. So the roof cavity is the best place to start adding insulation in the building to reduce heat transfer through ceilings, helping keep the warmth in in winter but also cooler in summer.
Mammoth ceiling blankets are designed to be installed in new or existing roof cavities.
Mammoth® ceiling insulation is a long lasting 100% polyester blanket insulation made in NZ. An effective and easy form of thermal insulation, Mammoth's ceiling blankets have a range of R-values of up to R4.0, or R8.0 when double layered. Mammoth blankets are long lasting, won't sag or settle over time, are non-irritant and highly effective. Mammoth products contain recycled polyester fibres. Mammoth ceiling blanket insulation uses up to 7,400 recycled PET plastic bottles per 100sqm*.
Mammoth insulation blanket products are suitable for installation in homes with a pitched roof and an accessible ceiling space, and suspended ceiling applications in commercial buildings and residential environments.
For new ceilings without a roof space there is the option of our Mammoth Skillion Ceiling Sections and for skillion and truss roofs we have Mammoth Ceiling Battens.
Can be double layered to meet the Building Code.
Mammoth ceiling blankets are manufactured in roll form so that they can be installed as both a single or double layer system. For any system - single or double layered - the joist depth must be greater than the insulation thickness.
Mammoth ceiling blankets are designed in widths to fit snugly between joists or trusses in a single layer option or alternatively with a second layer run perpendicular to the first, covering the top of the joists or truss bottom chord reducing thermal bridging in these areas.
Key Features:
Alongside Mammoth’s sustainability credentials, recyclability, trusted accreditations and 90-year warranty, these key features set our insulation apart:
- Soft, roll-form 100% polyester insulation blanket for ceilings with a large range of R values and sizes. Can be double layered for higher R-value.
- Mammoth ceiling blanket insulation uses up to 7,400 recycled PET plastic bottles per 100sqm* (based on 16.2g 500ml PET Bottles).
- Unaffected by moisture, Mammoth will continue to perform once dried out. Mammoth is moisture, mould, mildew and vermin resistant.
- Lightweight and easy to cut, fit and install - can be torn to length or cut with shears. Available in varying widths and lengths to suit most applications.
- Superior thermal performance for improved energy efficiency and comfort.
- Acoustic insulation solutions that help reduce noise transfer and reverberation.
- Made in New Zealand using a zero-waste manufacturing process.
- FREE H1 calculations when specifying Mammoth for commercial and residential projects.
- Heat bonded - no glues or binders that can break down so it won't sag or settle over time.
- Red List Free - no formaldehyde or pesticides added.
- Safe, non-itch, odourless, non-toxic and respiratory safe - no precautions are required for handling the product.
- BRANZ 797 Appraised, compliant with the NZ Building Code and are Eco Choice Aotearoa certified.
- Mammoth products are 100% recyclable through Mammoth’s free TakeBack & ReUse Programme.
- Mammoth insulation products have an Ozone Depleting Potential (ODP) of zero, meaning no ozone depleting substances are present in the product or used in direct manufacture of the product.
- Independently fire tested and compliant with NZ Building Code requirements. See list of Technical Attributes (including NZBC, Product Safety and more).
- Member of NZ Green Building Council and High Performance Building.
- Long lasting, Mammoth insulation is backed by a 90 year manufacturer's warranty.
- Nationwide installer network and technical support.
- Available on SmartSpec, MasterSpec and ProductSpec for easy specification.
Downloads:
Mammoth Skillion Roof Insulation
Mammoth skillion roof insulation is designed for new homes without a roof space.
Mammoth® skillion roof sections are designed to promote high thermal performance in modern skillion roof or flat roof designs.
Mammoth high density, moisture-resistant sections are made from 100% polyester with a controlled loft to ensure the required 25mm air ventilation gap to the roof is always maintained.
Mammoth products contain recycled polyester fibres. Mammoth ceiling skillion section insulation uses up to 9,300 recycled PET plastic bottles per 100sqm*.
They are Red List Free and allow a smooth crease-free friction-fit to enhance thermal performance.
For ceilings with sufficient roof space there is the option of our Ceiling Blanket Insulation and for skillion and truss roofs we have Ceiling Batten Insulation.
Key Features:
Alongside Mammoth’s sustainability credentials, recyclability, trusted accreditations and 90-year warranty, these key features set our insulation apart:
- High performance semi-rigid 100% polyester sections with a controlled loft to provided assured air-space to roof lining.
- Available in a range of sections and blankets, various R values and sizes.
- Self-supporting for a smooth friction fit without creases, folds or tucks.
- Easy and safe to install - simply squeezes between joists with no need for staples.
- Provides thermal and acoustic benefits for residential and commercial applications.
- Mammoth ceiling skillion insulation uses up to 9,300 recycled PET plastic bottles per 100sqm* (based on 16.2g 500ml PET Bottles).
- Mammoth sections come in pre-cut sections of varying widths and lengths.
- Safe and easy to work with, sections can easily be cut using wide blade craft knives or specialised insulation saws.
- Unaffected by moisture, Mammoth will continue to perform once dried out. Mammoth is moisture, mould, mildew and vermin resistant.
- Superior thermal performance for improved energy efficiency and comfort.
- Made in New Zealand using a zero-waste manufacturing process.
- FREE H1 calculations when specifying Mammoth for commercial and residential projects.
- Heat bonded - no glues or binders that can break down so it won't sag or settle over time.
- Red List Free - no formaldehyde or pesticides added.
- Safe, non-itch, odourless, non-toxic and respiratory safe - no precautions are required for handling the product.
- Most skillion sections are BRANZ 797 Appraised, compliant with the NZ Building Code and are Eco Choice Aotearoa certified.
- Mammoth products are 100% recyclable through Mammoth’s free TakeBack & ReUse Programme.
- Mammoth insulation products have an Ozone Depleting Potential (ODP) of zero, meaning no ozone depleting substances are present in the product or used in direct manufacture of the product.
- Independently fire tested and compliant with NZ Building Code requirements.
- See list of Technical Attributes (including NZBC, Product Safety and more).
- Member of NZ Green Building Council and High Performance Building.
- Long lasting, Mammoth insulation is backed by a 90 year manufacturer's warranty.
- Nationwide installer network and technical support.
- Available on SmartSpec, MasterSpec and ProductSpec for easy specification.
Downloads:
Datasheet Installation Guidelines Warranty Other
Mammoth Ceiling Batten Insulation
Mammoth ceiling batten insulation is designed for skillion and truss roofs.
Made of 100% polyester, Mammoth® Ceiling Batten Insulation is designed to support the thermal performance of skillion and truss roof spaces. Ceiling batten space is an ideal cavity to insulate:
- to reduce thermal bridging through your truss bottom chords or rafters, and
- as the space is easily accessible from underneath and usually an unused space.
We have two options available for ceiling batten spaces - a R1.0 blanket and R1.3 airlay sections. Both require 45mm deep ceiling battens.
For ceilings with sufficient roof space there is the option of our Mammoth Ceiling Blanket or for new ceilings without a roof space there is the option of our Mammoth Skillion Ceiling Sections.
Key Features:
Alongside Mammoth’s sustainability credentials, recyclability, trusted accreditations and 90-year warranty, these key features set our insulation apart:
- High performance semi-rigid airlay 100% polyester sections for timber framing only, or carded polyester blanket, several R values available.
- 45mm thick sections to fit between ceiling battens.
- Self-supporting for a smooth friction fit without creases, folds or tucks.
- Easy and safe to install - simply squeezes between joists with no need for staples.
- Provides thermal and acoustic benefits for residential and commercial applications.
- Mammoth ceiling skillion insulation uses up to 9,300 recycled PET plastic bottles per 100sqm* (based on 16.2g 500ml PET Bottles).
- Mammoth sections come in pre-cut sections of varying widths and lengths.
- Safe and easy to work with, sections can easily be cut using wide blade craft knives or specialised insulation saws.
- Unaffected by moisture, Mammoth will continue to perform once dried out. Mammoth is moisture, mould, mildew and vermin resistant.
- Superior thermal performance for improved energy efficiency and comfort.
- Made in New Zealand using a zero-waste manufacturing process.
- FREE H1 calculations when specifying Mammoth for commercial and residential projects.
- Heat bonded - no glues or binders that can break down so it won't sag or settle over time.
- Red List Free - no formaldehyde or pesticides added.
- Safe, non-itch, odourless, non-toxic and respiratory safe - no precautions are required for handling the product.
- Most skillion sections are BRANZ 797 Appraised, compliant with the NZ Building Code and are Eco Choice Aotearoa certified.
- Mammoth products are 100% recyclable through Mammoth’s free TakeBack & ReUse Programme.
- Mammoth insulation products have an Ozone Depleting Potential (ODP) of zero, meaning no ozone depleting substances are present in the product or used in direct manufacture of the product.
- Independently fire tested and compliant with NZ Building Code requirements.
- See list of Technical Attributes (including NZBC, Product Safety and more).
- Member of NZ Green Building Council and High Performance Building.
- Long lasting, Mammoth insulation is backed by a 90 year manufacturer's warranty.
- Nationwide installer network and technical support.
- Available on SmartSpec, MasterSpec and ProductSpec for easy specification.
Downloads:
Datasheet Installation Guidelines Warranty Other
Ceiling & Roof Product Range
| CEILING BLANKET PRODUCT RANGE | PACK SIZES | |||||||
|---|---|---|---|---|---|---|---|---|
 |  | Density (kg/m3) | R-Value | Nominal thickness (mm) | Dimensions (mm) | Pieces per pack | Area per pack (m2) | |
| Ceiling Blanket |  | | 7.83 | R 1.8 | 115 | 870 x 11495 | 2 | 20 |
| | 7.57 | R 2.9 | 185 | 870 x 8620 | 2 | 15 | |
| | 8.00 | R 3.2 | 200 | 870 x 8620 | 2 | 15 | |
| | 8.00 | R 3.3 | 210 | 870 x 8620 | 2 | 15 | |
| | 8.00 | R 3.6 | 225 | 870 x 7470 | 2 | 13 | |
| | 8.33 | R 4.0 | 240 | 870 x 5750 | 2 | 10 | |
| 9.79 | R 4.1 | 210 | 870 x 5750 | 2 | 10 | |||
| Double Layer - R 2.9 x 2 | | 7.57 | R 5.8 | 370 | 870 x 8620 | 2 | 15* | |
| Double Layer - R 3.2 x 2 | | 8.00 | R 6.4 | 400 | 870 x 8620 | 2 | 15* | |
| Double Layer - R 3.3 x 2 | | 8.00 | R 6.6 | 420 | 870 x 8620 | 2 | 15* | |
| Double Layer - R 3.6 x 2 | | 8.00 | R 7.2 | 450 | 870 x 7470 | 2 | 13* | |
| Double Layer - R 4.0 x 2 | | 8.33 | R 8.0 | 480 | 870 x 5750 | 2 | 10* | |
| Double Layer - R 4.1 x 2 | 9.79 | R 8.2 | 420 | 870 x 5750 | 2 | 10* |
* Double the quantity of product is required. For instance, a 100m2 area requires 200m2 of product to achieve a double layer.
| SKILLION ROOF PRODUCT RANGE | PACK SIZES | |||||||
|---|---|---|---|---|---|---|---|---|
| Airlay / Card | | Density (kg/m3) | R-Value | Nominal thickness (mm) | Dimensions (mm) | Pieces per pack | Area per pack (m2) | |
| Skillion Sections | Airlay | | 32.87 | R 2.9 | 115 | 560 x 1200 | 3 | 2.02 |
| Skillion Sections | Airlay | | 32.87 | R 2.9 | 115 | 860 x 1200 | 5 | 5.16 |
| Skillion Sections | Airlay | | 15.15 | R 3.2 | 165 | 570 x 1200 | 5 | 3.42 |
| Skillion Sections | Airlay | | 15.15 | R 3.2 | 165 | 870 x 1200 | 4 | 4.18 |
| Skillion Sections | Airlay | | 19.39 | R 3.6 | 165 | 870 x 570 | 6 | 2.98 |
| Skillion Sections | Card | | 25.71 | R 3.6 | 140 | 870 x 570 | 6 | 2.98 |
| Ceiling Blanket | Card | 9.79 | R 4.1 | 210 | 870 x 5750 | 2 | 10 | |
| Skillion Sections | Card | 17.67 | R 5.0 | 215 | 870 x 570 | 8 | 3.97 |
| CEILING BATTEN PRODUCT RANGE | PACK SIZES | |||||||
|---|---|---|---|---|---|---|---|---|
| Type | Airlay / Card | Density (kg/m3) | R-Value | Nominal thickness (mm) | Dimensions (mm) | Pieces per pack | Area per pack (m2) | |
| Ceiling Batten | Blanket | Card | 16.67 | R 1.0 | 45 | 580 x 12930 | 2 | 15 |
| Section | Airlay | 47.10 | R 1.0 | 35 | 540 x 1200 | 10 | 6.48 | |
| Section | Airlay | 42.22 | R 1.3* | 45 | 360 x 2400 | 9 | 7.78 | |
| Section | Airlay | 42.22 | R 1.3* | 45 | 560 x 2400 | 6 | 8.06 |
Ceiling & Roof Technical Details
Technical Attributes | Standard | Test Result |
|---|---|---|
| New Zealand Building Code | ||
| Durability | Clause B2.3.1 (a) (b) Clause B2.3.2 | Ref: BRANZ Appraisal No 797(1) {except Batten R1.0 35mm) |
| Internal Moisture | Clause E3.3.1 | Ref: BRANZ Appraisal No 797(1) {except Batten R1.0 35mm) |
| Hazardous Building Materials | Clause F2.3.1 | Ref: BRANZ Appraisal No 797(1) {except Batten R1.0 35mm) |
| Energy Efficiency | Clause H1.3.1(a) Clause H1.3.2 E | Ref: BRANZ Appraisal No 797(1) {except Batten R1.0 35mm) |
| Product Safety | ||
| Non Toxic | OSH Health and Safety Guidelines(2) | Polyester products are ‘non-toxic’ |
| Non Irritant | OSH Health and Safety Guidelines(2) | Polyester products are ‘non-irritant’ |
| Respiratory Safe | Polyester fibres are non-respirable | |
| Fire Test(3) | AS/NZS60695.2.11 | Passed - Glow wire flammability test |
| AS/NZS60695.11.5 | Passed - Test flames (Needle-flame test) | |
| ISO9705 | Group1S {For Skillion - R3.2 sections only} | |
| VOC Emission Safe(4) | Total VOC ≤ 0.5mg/m(4) | < 0.005mg/m3 - level below detection(5) |
| Formaldehyde ≤ 0.06mg/m(5) | < 0.009mg/m3 - level below detection | |
| Glue Free | Free from all glues | |
| Other | ||
| Thermal Performance | AS/NZS4859.1 | Only applies to products with declared R-values. |
| Non Corrosive | Materials composed entirely of polyester are regarded as non-corrosive and are exempt from testing. Alkalinity of pH 7.8. | |
| Moisture Resistant(6) | ASTM C1104 | Absorption rate of less than 0.2% by weight. |
| Vermin Resistant | Not a food source for vermin (and not treated). | |
| Odourless | Mammoth is odourless and will not absorb odours. |
(2) Occupational Safety and Health Service. Health and Safety Guidelines for the Selection and Safe Handling of Synthetic Mineral Fibres, Dept of Labour, 1994.
(3) Can safely cover IC-rated downlights. If luminaire rating is unknown, minimum clearance of 100mm to any insulation is required.
(4) Mammoth has been tested under ASTM D5116. Based on test results for a product with similar nominal weight.
(5) All individual VOCs were less than their threshold limit values. Carcinogens and reproductive toxins were not identified as part of the VOCs.
(6) If the products should become wet the full thermal performance will be restored once the product is dried completely.
Contact us today
If you need more information, a quote or would like to chat to a Mammoth Insulation Trade Representative, please contact us here.