Radiant Barrier Insulation for Homes & Buildings

Radiant barrier insulation is one of the most effective ways to combat heat gain in South African homes and commercial buildings. Designed to reflect radiant heat rather than absorb it, radiant barriers work by bouncing thermal energy away from your ceiling or roof, reducing indoor temperatures and improving energy efficiency.

At Home Insulations, we supply high-performance radiant barriers that are lightweight, easy to install, and ideal for use alongside traditional bulk insulation like glasswool or polyester. Whether you’re building a new home or retrofitting a roof, our reflective foil products help reduce cooling loads and keep indoor spaces comfortable.

We deliver radiant barrier roof insulation rolls nationwide, with branches in Johannesburg, Pretoria, Centurion, Cape Town, and Durban.

Benefits of Radiant Barrier Insulation

• Reflects Up to 97% of Radiant Heat – Significantly reduces heat transfer through your ceiling
• Improves Energy Efficiency – Reduces the need for air conditioning and lowers power bills
• Acts as a Vapour Barrier – Helps protect roof insulation from moisture and condensation
• Lightweight & Easy to Install – Rolls out quickly over rafters or ceiling insulation
• Compatible with All Insulation – Enhances thermal performance when paired with glasswool or polyester
• Durable & Tear-Resistant – Aluminium foil facing is strong and long-lasting
• Fire-Resistant & Low Emissivity – Meets safety standards and resists flame spread
• Low Maintenance – Performs for decades without sagging or degrading

Where Can Radiant Barriers Be Installed?

• Under metal or tiled roofing
• Over existing ceiling insulation
• In industrial and warehouse roofs
• Inside wall cavities (in combination with other materials)
• Attics, garages, and storage spaces
• Agricultural buildings and sheds

Radiant barriers are especially effective in hot climates like Gauteng, Limpopo, and KwaZulu-Natal, where solar radiation drives up indoor temperatures. They are typically installed in summer-facing roof spaces and used to supplement traditional roof insulation for superior thermal control.

Our Radiant Barrier Products

We offer a variety of radiant barriers and reflective insulation rolls, including:

• Single-sided foil insulation
• Double-sided foil radiant barriers
• Foil + bubble insulation rolls
• Foil laminated with fiberglass for high-temperature areas

All our radiant barrier products are tested to SANS standards, ensuring fire resistance, thermal performance, and long-term reliability.

Related Insulation Pages

• Insulation – A full breakdown of insulation types and uses.
• Materials – Explore insulation by material type.
• Applications – See which insulation suits each area of your home.
• Guides – Expert tips for installation, care, and choosing materials.
• Comparisons – Compare insulation products and materials side by side.