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PLANITHERM® TOTAL +

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PLANITHERM® TOTAL+

PLANITHERM® TOTAL+ is a higher performance1 low-emissivity glass developed and manufactured in the UK, designed to help meet the needs of the UK market. In a double-glazed unit, it delivers an optimum centre-pane U-value of 1.2 W/m²·K2 and a solar gain (g-value) of 0.714.

This balance of thermal insulation and solar gain can provide performance benefits under the British Fenestration Rating Council (BFRC) Window Energy Rating (WER) and Door Energy Rating (DER) schemes. PLANITHERM® TOTAL+ is designed for use in both double-glazed units and triple-glazed units, achieving an optimum centre-pane U-value of 0.6 W/m²·K in a triple-glazed unit3.

PLANITHERM® TOTAL+ can also help to maximise natural daylight in a building, with light transmittance of 79%5 in a double-glazed unit. Additionally, it delivers a lower reflection of 13%6 in a double-glazed unit, compared with 25%6 for PLANITHERM® ONE T in the equivalent configuration.

As a “single-stock” coated product, PLANITHERM® TOTAL+ can be used in annealed or toughened form and can be toughened to meet the safety requirements of BS EN 12150. It can also be incorporated into the STADIP® laminated glass range, to help support additional project requirements.

thermal insulation

Thermal insulation

low carbon

Lower-carbon substrate

daylight comfort

Daylight

family at home eating meal in kitchen together
saint-gobain glass
saint-gobain glass

All images are for illustration purposes only

The PLANITHERM® TOTAL+ Range

ANNEALED AND TOUGHENED GLASS
PLANITHERM® TOTAL+ is a ‘‘single- stock’’ coating and therefore can be used in either annealed or toughened form. It can be toughened to meet the safety requirements of BS EN 12150.

LAMINATED GLASS
PLANITHERM® TOTAL+ can be incorporated into the STADIP® laminated glass range. Please contact us for lead times and availability.

Benefits of PLANITHERM® TOTAL+

THERMAL INSULATION

  • Delivers an optimum centre-pane U-value of 1.2 W/m2.K in a double-glazed unit2 and 0.6 W/m2.K in a triple-glazed unit3.
  • Designed for both double-glazed units (DGUs) and triple-glazed units (TGUs).

SOLAR GAIN

  • Optimised solar gain (g-value) of 71%4 in a DGU, can provide performance benefits under the British Fenestration Rating Council (BFRC) Window Energy Rating (WER) and Door Energy Rating (DER) schemes.

LIGHT TRANSMISSION & REFLECTION

  • Can help to maximise the amount of natural daylight in a building, with a light transmittance of 79%5 in a DGU.
  • Delivers a lower reflection of 13%6 in a DGU when compared with PLANITHERM® ONE T

ENVIRONMENTAL CREDENTIALS

  • Made using PLANICLEAR®, lower-carbon flat glass as standard. PLANICLEAR® is now a lower-carbon, clear float glass, based on the product’s new, third-party verified EPD7 (published June 2026).
  • The new declaration shows a carbon reduction of more than 34% compared with the previous PLANICLEAR® EPD. PLANICLEAR® now achieves 7.22kg CO2e/m2 for 4mm glass (Global Warming Potential categories A1-A3). This flat glass substrate is manufactured as standard by Saint-Gobain Glass UK & Ireland.
  • Manufactured in the UK, which can help support supply chain security and product availability.
  • Using 1 tonne of cullet in the manufacture of new float glass prevents the use of 1.2 tonnes of virgin raw materials and 700kg of CO2 emissions (scopes 1, 2 & 3)8.

PLANITHERM® TOTAL+ Applications

RESIDENTIAL

  • Windows and skylights
  • Patio doors, French doors and other external doors

References

  1. Higher performance, coated, flat glass, achieves an emissivity level of 3% or less. Saint-Gobain Glass’ PLANITHERM® and COOL-LITE® products are higher performing than uncoated, flat glass substrates, based on emissivity level.
  2. Refer to the double-glazed unit configuration of 4mm PLANICLEAR® / 16mm cavity, 90% argon / 4mm PLANITHERM® TOTAL+ (face 3) in the performance table, with a centre-pane U-value of 1.2 W/m2.K and a g-value of 0.71
  3. Refer to the triple-glazed unit configuration of 4mm PLANICLEAR® / 16mm cavity, 90% argon / 4mm PLANITHERM® TOTAL+ (face 3) / 16mm cavity, 90% argon / 4mm PLANITHERM® TOTAL+ (face 5) in the performance table, with a centre-pane U-value of 0.6 W/m2.K
  4. Refer to the double-glazed unit configuration of 4mm PLANICLEAR® / 16mm cavity, 90% argon / 4mm PLANITHERM® TOTAL+ (face 3) in the performance table, with a g-value of 0.71
  5. Refer to the double-glazed unit configuration of 4mm PLANICLEAR® / 16mm cavity, 90% argon / 4mm PLANITHERM® TOTAL+ (face 3) in the performance table, with a light transmittance of 79%
  6. A double-glazed unit configuration of 4mm PLANICLEAR® / 16mm cavity, 90% argon / 4mm PLANITHERM® TOTAL+ (face 3) has an outdoor reflectance (RLe) and indoor reflectance (RLi) of 13%, compared with a double-glazed unit configuration of 4mm PLANICLEAR® / 16mm cavity, 90% argon / 4mm PLANITHERM® ONE T FG (face 3) with an outdoor reflectance (RLe) and indoor reflectance (RLi) of 25%
  7. EPD – environdec.com
  8. The benefit of cullet use is based on a calculation which uses Life Cycle Analysis level data representing all Saint-Gobain Glass European float lines producing architectural glass.
  9. In a standard double-glazed unit (DGU) there are four potential surfaces to which coatings can be applied: surface 1 faces outdoors, surface 2 and surface 3 face each other inside the DGU, separated by a peripheral spacer which creates an insulating air space, and surface 4 faces directly indoors.

PLANITHERM® TOTAL+ must always be processed into an insulating glass unit (IGU) with the coating positioned towards the inside of the cavity. It is not suitable for single glazing applications. The Saint-Gobain recommendation is to always toughen the centre-pane of a triple-glazed unit when using silica glass. For full processing and handling instructions please refer to the document ‘‘Guidance for use – ‘‘single-stock’’ low-E coated glass’’. Available from Saint-Gobain Glass on request.

Performance data calculated using Calumen.com and is correct at the time of publishing (21.10.2026) but is subject to change at any time. This website page is regularly updated; information is subject to change. Please check with your local sales and specification team. All trademarks are registered trademarks of Saint-Gobain Glass or affiliates, part of Saint-Gobain group. Images are for illustrative purposes only.

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