When it comes to flat roof systems, homeowners are often stuck between the old-school felt method and newer materials like EPDM rubber. On the surface, felt is cheaper — but long-term, EPDM is the better investment. Here’s why:
1. EPDM Lasts Decades — Felt Usually Doesn’t
Torch-on felt roofs typically last around 10–15 years before cracking or splitting. EPDM rubber, on the other hand, can last 30–50 years with minimal maintenance. If you’re thinking long-term, the difference is massive.
2. Fewer Seams = Fewer Leaks
Felt roofs are usually applied in rolls, meaning multiple joins — and each join is a potential leak point over time. EPDM is often installed in a single sheet, custom-cut for your roof. That means fewer weak spots and far better waterproofing.
3. EPDM Handles Movement Better
Flat roofs expand and contract with temperature. Felt doesn’t cope well with this — it becomes brittle, especially around edges and upstands. EPDM is a flexible rubber membrane that moves with the building, reducing the chance of splits or cracks.
4. Safer, Cleaner Installation
Felt requires hot works (blowtorches), which come with fire risks and mess. EPDM is installed cold, with adhesive — no flames, no fumes, and no scorched surfaces.
5. EPDM Looks Better and Ages Gracefully
Felt weathers poorly. It fades, cracks, and often looks scruffy after a few years. EPDM has a sleek, clean finish and doesn’t attract moss or algae in the same way. It also reflects UV far better, which helps extend its life.
Conclusion
Felt might save you money upfront, but EPDM outperforms it in every way that matters — longevity, appearance, reliability, and safety. If you’re investing in a flat roof, do it once and do it right. Speak to Home Fixology today about upgrading to EPDM and getting a roof that lasts for decades, not just years.
