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SGS Window Installations
ThermaCore

ThermaCore

Lightweight insulated tiled roof system

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ThermaCore is a lightweight insulated tiled conservatory roof system engineered specifically for renovation and replacement. With its high-density PIR insulation core and thin-profile tile finish, ThermaCore delivers exceptional thermal performance with a low overall roof weight — making it ideal for older conservatories where structural margins are tighter.

Benefits

Why choose ThermaCore

  • Lightweight construction suits older conservatories
  • PIR core delivers exceptional thermal performance
  • Multiple tile finishes available
  • Building Regulations approved
  • Optional rooflights maintain natural light
  • Internal plastered ceiling
  • 10-year guarantee
Features

Engineered for performance

  • High-density PIR insulation
  • Lightweight aluminium ring beam
  • Pre-fabricated panels for fast installation
  • Optional Velux rooflights
  • Internal vaulted ceiling option
Make it yours

Configurator

Mix and match colours, hardware and glass to suit your home.

Colours

Available finishes

Anthracite Slate Brindle Tile Charcoal Shingle
Frame styles

Choose your style

  • Pitched roof
  • Hipped roof
  • Lean-to
  • L-shape and P-shape combinations
Glass

Glass options

  • Velux rooflights
  • Fixed rooflights
Hardware

Furniture & hardware

  • Aluminium ring beam
  • Stainless-steel fixings
  • GRP gutter capping
Energy efficiency
A

U-values from 0.20 W/m²K — equivalent to upgraded loft insulation. Substantial energy bill savings.

Security

Engineered to protect

The solid roof structure provides far greater security than glass or polycarbonate.

Customisation

Tailored to your home

Choose tile finish, rooflight configuration and ceiling profile.

Ideal for

Property suitability

Older conservatories where structural weight matters, mid-size projects, and renovations where fast installation is a priority.

Installation

How we fit it

Pre-fabricated panels enable installations to complete in 3–5 days. Full Building Regulations sign-off included.

Common questions

Frequently asked

Will I need planning permission? +
In most cases, replacing a polycarbonate or glass conservatory roof with a warm tiled roof is permitted development. We'll confirm the specifics for your property during the survey and handle any planning enquiries on your behalf.
How long does the installation take? +
Most warm-roof replacements complete in 3–7 days depending on conservatory size and existing structure. The conservatory remains weatherproof throughout.
Will my conservatory still feel light inside? +
Yes — every system supports optional rooflights, and we'll discuss the right number and placement to balance natural light with the thermal performance gains. Most customers actually find their conservatories feel brighter year-round because they're no longer too hot or cold to use.
Is Building Regulations approval required? +
Yes — every warm-roof replacement requires Building Regulations sign-off. SGS handles the application, inspection and certification as part of the installation.
Explore the range

More Warm Roof Systems

View all Warm Roof Systems →
Warmer Roof
Warmer Roof
Equinox
Equinox

Like the ThermaCore? Let's talk.

Free home survey across Staffordshire — typically booked within 48 hours.

📞 01785 308 226 Request a Quote →