This insulating material is designed to trap heat and reduce drafts in lofts, sheds and caravans. Homeowners and DIYers gain warmer, drier spaces after a straightforward retrofit. Is the ThermaWrap Insulating Wrap the most practical option for tight spaces and tricky rafters?
⚡ At a Glance
- • Thermal Performance: Reflective aluminium layers and a bubble core give a 3.7mm wrap the insulating performance comparable to a 55mm polystyrene panel (per product information)
- • Best for: DIY homeowners insulating lofts, sheds, caravans, boats and garden buildings
- • Not ideal for: Projects that require thick, load-bearing insulation or rigid structural panels
Multiple reflective aluminium foil layers over a bubble core create a thin, flexible 3.7mm insulating barrier. The roll fixes to timber rafters with a staple gun and joins using Thermawrap Foil Tape for quick retrofit fitting.
Improved heat retention – with high-reflectivity aluminium layers
Multiple aluminium foil reflective layers sandwich a bubble core to create a 3.7mm insulating barrier; the construction reflects radiant heat back into the room. Product information states a 4mm layer achieves performance comparable to 55mm polystyrene.
Warmer rooms and fewer cold spots in lofts and small buildings, cutting heat loss without bulky panels.
Faster DIY fitting – with staple-gun attachment and foil tape
A thin, flexible roll lies flat and can be stapled directly to wooden frames and timber rafters. Adjacent sheets join using Thermawrap Foil Tape so seams remain sealed.
Time savings during installation, allowing a single person to retrofit lofts, sheds or caravans with basic tools.
Reduced condensation risk – with reflective, moisture-limiting layers
Aluminium foil surfaces help limit penetrating damp by creating a barrier that reduces condensation on cold surfaces. The lightweight construction sits close to rafters, reducing cold spots where moisture forms.
Stored items and living spaces stay drier, a clear advantage in garages, caravans and garden buildings prone to damp.
✨ The 4 Key Reasons for ThermaWrap Insulating Wrap
- Pre-measured roll size – Covers long rafters with fewer joins and less waste
- Easy to cut – Allows precise fitting around joists and awkward corners quickly
- Staple-ready backing – Attaches directly to timber frames using a simple staple gun
- Lightweight material – Single-person handling speeds up retrofit installations
📋 Technical Details at a Glance
- Category: Home Improvement — Insulation wrap
- Brand: ThermaWrap
- Material: Aluminium foil with bubble core
- Layers: Multiple reflective foil layers
- Thickness: 3.7mm
❓ Frequently Asked Questions
Q: Can ThermaWrap be used in lofts, sheds and caravans?
A: Yes, product information lists loft spaces, basements, garages, caravans, boats, sheds, summerhouses and other garden buildings as suitable applications.
Q: How is the wrap installed on rafters?
A: Attach to wooden frames and timber rafters using a staple gun, and join adjacent sheets using Thermawrap Foil Tape for sealed seams.
Q: Will it help reduce condensation and drafts?
A: Product information states the reflective layers reduce penetrating damp and help cut drafts, making interiors drier and less drafty.
🏆 Our Verdict
Ideal for DIY homeowners who need an easy-to-fit insulation for lofts, sheds, caravans and similar spaces. High-reflectivity aluminium layers in a thin 3.7mm roll deliver thermal performance comparable to much thicker foam while remaining lightweight and simple to handle. A cost-effective retrofit that should deliver long-term energy savings and reduced damp issues when fitted correctly.
