At Premium Portable Homes, we’re committed to more than just delivering quality housing — we’re passionate about building homes that keep Kiwi families safe. That’s why when it comes to the materials we use, we don’t cut corners.
One of the key decisions we’ve made is to avoid using EPS (Expanded Polystyrene) insulation in our structurally insulated panels. While EPS is commonly used due to its affordability and lightweight nature, it’s also considered a high-risk material — particularly when it comes to fire safety and long-term durability.
Instead, we use PIR (Polyisocyanurate) insulation, a far superior product that gives our clients peace of mind without compromising on energy efficiency or structural integrity.
Here’s why PIR wins every time:
🔒 Fire Safety First
Unlike EPS, which is highly flammable and can contribute to the rapid spread of fire, PIR is self-extinguishing and has a much higher fire rating. For us, safety is non-negotiable.
🌡️ Superior Insulation
With lower thermal conductivity, PIR offers better heat retention and energy efficiency. That means warmer homes in winter and cooler spaces in summer — and lower power bills year-round.
🏠 Stronger, Longer-Lasting Panels
PIR is more resistant to temperature extremes and won’t easily warp, crack, or degrade over time. That’s especially important in New Zealand’s varied climate.
💧 Better Moisture Resistance
PIR absorbs significantly less water than EPS, reducing the risk of mould and internal damage. This means a healthier, drier living environment and less maintenance down the track.
🛡️ Insurance Matters
Many insurers are reluctant to cover homes built with EPS due to the fire and moisture risks. Choosing PIR can help you avoid unnecessary complications when it comes to getting your home insured.
The Bottom Line
While EPS may seem like a budget-friendly option, the long-term risks far outweigh the short-term savings. At Premium Portables, we believe every Kiwi deserves a home that’s not only affordable but also safe, durable, and future-proof.
We’re proud to be leading the way in offering smart, sensible building solutions — because your home should protect you, not put you at risk.
