In terms of roof insulation and loft insulation boards, rockwool insulation is a superb option for a whole host of reasons. If you’re contemplating using rockwool insulation over another roof insulation product, here are seven reasons why mineral wool may be your best option:
1. Rockwool insulation is made from minerals (usually volcanic), making it far less irritating and dusty than fibreglass products.
2. Your building will benefit from higher R-values than fibreglass roof insulation
3. Rockwool insulation resists moisture and even repels water so that it does not become absorbent and keeps the roof insulation space drier.
4. It is 100% resistant to rot, mold, mildew and bacterial growth
5. Being non-combustible, rockwool insulation boasts excellent fire resistance
6. It’s easy to fit and therefore ideal for both flat roof insulation and pitched roof insulation
7. It is denser than the more traditional fibreglass roof insulation products meaning it has better thermal and acoustic insulation properties.