2. The Science Behind Security Door Materials

Security doors are more than just steel plates. They are carefully engineered with multiple layers and structural reinforcements.

• Outer Layer: Medite Tricoya Extreme (MTX) provides durability and resistance against weather.
• Core: Rockwool insulation improves thermal efficiency and acoustics while adding fire resistance.
• Steel Shielding: 1.5mm mild steel is standard, with Grade 4 offering an upgradeable layer for ballistic resistance.
• Threshold & Seals: Stainless steel thresholds combined with dual rubber seals block drafts, dust, and sound leaks.

This combination of materials ensures that security doors perform across multiple dimensions — safety, comfort, and long-term durability.

When you invest in a certified security door, you’re getting science-backed protection.