Brandwave

GreenStuf vs Mammoth:Which is more popular in New Zealand?

In October 2026, Mammoth had more branded searches than GreenStuf among insulation brands in New Zealand. Mammoth had about 930 branded searches, while GreenStuf had 370. Mammoth made up 17.5% of all insulation brand searches we track, and GreenStuf accounted for 7%. When we asked ChatGPT and Google AI Overviews about insulation brands, GreenStuf and Mammoth each appeared in three of the four answers. Mammoth was mentioned before GreenStuf in two out of three answers.

Among insulation brands in New Zealand in October 2026

Who do people search for more?

Mammoth, about 3 searches for every 1 for GreenStuf

Mammoth 930 searchesGreenStuf 370 searches

Who does AI mention more?

Both were mentioned in 3 of 4 answers.

GreenStuf in 3 of 4Mammoth in 3 of 4

Who does AI recommend more?

Mammoth, named ahead of GreenStuf in 2 of 3 answers

Mammoth first in 2GreenStuf first in 1

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Top insulation brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and one Google AI Overview, GreenStuf and Mammoth were each mentioned in three out of four: in all three ChatGPT answers, but not in the Google AI Overview. Mammoth was listed before GreenStuf in two out of three answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Pink Batts1st
  2. Mammoth1st
  3. GreenStuf3rd
  4. Knauf Insulation4th
  5. Terra Lana5th
  6. Bradford Insulation6th

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Pink Batts3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Mammoth3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • GreenStuf3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • Knauf Insulation1 of 4Named in 1 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • Terra Lana1 of 4Named in 1 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • Bradford Insulation1 of 4Named in 1 of 3 ChatGPT answersNamed in 0 of 1 Google answers

See every answer about insulation brands

4 answers

Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.

Is GreenStuf or Mammoth more popular in search?

This chart shows how often people search Google for GreenStuf and Mammoth by name. Each line represents a brand's share of searches for all six insulation brands we track, month by month, from searches in New Zealand.

GreenStuf and Mammoth among insulation brands in New Zealand, by month

Share of searches by month for Mammoth, GreenStuf. The figures are in the table below the chart.

View monthly share of searches table
MonthPink BattsMammothKnauf InsulationTerra LanaGreenStufBradford Insulation
Nov 202551%16.8%11.4%11.4%8.3%1.1%
Dec 202550.5%15.8%11.5%11%10.2%1%
Jan 202651.6%16.3%11.5%10.6%8.7%1.3%
Feb 202649.3%18.8%10.8%12.2%8%0.8%
Mar 202652.4%16.8%11.3%10.7%8%0.87%
Apr 202651%18.3%10.9%10.4%8.6%0.77%
May 202647.9%18.5%12.1%13.2%7.4%0.83%
Jun 202649.2%16.3%12.6%12.6%8.7%0.69%
Jul 202650.4%17.5%12.4%11%8.1%0.67%
Aug 202651%17.6%10.7%11.3%8.7%0.73%
Sep 202652.1%16.4%11.3%11.1%8.4%0.71%
Oct 202653.8%17.5%11.1%10%7%0.75%

How has branded search for GreenStuf and Mammoth changed in New Zealand over the last 12 months?

3 findings
  • Mammoth was ahead of GreenStuf in every measured month of the 12 months ending October 2026.
  • Across the 12 months ending October 2026, GreenStuf’s share of searches among insulation brands in New Zealand moved from 8.3% to 7%, and its estimated monthly branded searches moved from 450 to 370.
  • Across the 12 months ending October 2026, Mammoth’s share of searches among insulation brands in New Zealand moved from 16.8% to 17.5%, and its estimated monthly branded searches moved from 910 to 930.

How did search popularity change for New Zealand insulation brands in October 2026?

2 changes

  1. In October 2026, Mammoth gained share of searches among insulation brands in New Zealand, from 16.4% to 17.5%.

  2. In October 2026, GreenStuf lost share of searches among insulation brands in New Zealand, from 8.4% to 7%.

How are GreenStuf’s and Mammoth’s branded searches counted?

11 search terms

Brandwave collects information about searches that people make online using GreenStuf’s and Mammoth’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

GreenStuf

6 branded search terms

  • autex greenstuf
  • greenstuf
  • greenstuf batts
  • greenstuf ceiling insulation
  • greenstuf insulation
  • greenstuf underfloor insulation

Mammoth

5 branded search terms

  • mammoth acoustic insulation
  • mammoth insulation
  • mammoth polyester insulation
  • mammoth underfloor insulation
  • mammoth wall insulation

How the Brand Demand Index is measured

Other head-to-heads among insulation brands

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