SF19+ Multifoil Insulation: A Mortgage-Friendly Alternative to Spray Foam
When it comes to insulating your home, choosing the right material is crucial for both comfort and property value. While spray foam has been popular in recent years, it has caused problems for many homeowners — particularly when selling or remortgaging, as lenders often refuse properties with spray foam insulation.
That’s where SF19+ multifoil insulation comes in. Lightweight, breathable and mortgage-lender friendly, SF19+ offers an effective, future-proof solution without the risks associated with spray foam.
What Is SF19+ Multifoil Insulation?
SF19+ is a high-performance multifoil insulation system made up of multiple layers of reflective foil and insulation materials. It’s designed to be:
Lightweight and easy to install
Highly thermally efficient
Breathable, preventing condensation and protecting roof timbers
Unlike spray foam, it doesn’t trap moisture, damage structural timbers, or restrict ventilation.
Why Spray Foam Can Be a Problem
Spray foam is applied directly to the underside of roof tiles and timbers. While it can improve insulation in the short term, it also:
Traps moisture, increasing the risk of damp and timber decay
Makes roof surveys and inspections difficult
Reduces property value, as many lenders won’t approve mortgages on homes with spray foam
This leaves homeowners with costly removal work if they want to sell or refinance.
The Benefits of SF19+ Multifoil Insulation
1. Mortgage-Lender Friendly
SF19+ is fully accepted by mortgage providers, making it a safe choice if you plan to sell or remortgage your property in the future.
2. Breathable and Condensation-Resistant
The multifoil layers allow moisture to escape, reducing the risk of damp, mould and timber damage.
3. Excellent Thermal Performance
SF19+ keeps your home warm in winter and cool in summer, helping reduce energy bills and improve comfort.
4. Quick and Easy Installation
Its lightweight design means less disruption during fitting, unlike spray foam which can be messy and invasive.
5. A Future-Proof Investment
By choosing an approved, compliant insulation system, you’re protecting your property’s value and ensuring long-term peace of mind.
Conclusion
If you’re looking for a safe and effective alternative to spray foam, SF19+ multifoil insulation is the answer. It delivers excellent energy efficiency, protects your roof structure, and — most importantly — keeps your property mortgage-lender friendly.
With professional installation, you can enjoy a warmer, more efficient home without the risks of spray foam.