Clients sometimes ask why we use mechanically needled glass mat (E-Glass) in our covers. Why do we not use mineral wool insulation instead?
The answer is simple.
We use only the highest quality components in the production of our SUM GUARD covers, and mechanically needled glass mat is precisely such a material.

Properties of mechanically needled glass fibre (E-Glass) nonwoven insulation

Mechanically needled glass fibre (E-Glass) nonwoven insulation, compared with standard mineral wools, is characterised by:
✅ high density: 130–180 kg/m³;
✅ water resistance – even after complete saturation, it regains 100% of its insulating properties once dried;
✅ durability and mechanical integrity – it does not deform under bending and does not delaminate or fragment.
The advantages of this nonwoven material include very good thermal insulation performance, sound absorption, resistance to biological contamination (bacteria, fungi, mould), as well as resistance to ageing processes (in particular biological and UV degradation).

We invite you to watch a short video in which our employee, Adam Serwach, Business Development Representative, demonstrates the difference between mechanically needled glass fibre (E-Glass) and mineral wool.

Our attention to every component of the cover ensures long service life, thermal durability, and a guarantee of the best solution on the market.