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Planitherm 4S  Year Round Thermal Control

High Performance Solar Control Coating


Helping to keep your interiors cooler - maximising the use of your conservatoryPlanitherm 4S

A new concept for year-round comfort, keeping you warm in winter and cool in summer.


Traditionally, conservatories have a reputation of being too hot in the summer and being drafty and chilly in the winter months, but with PLANITHERM 4S Conservatory Wall Glass this can truly be a thing of the past.


With the right choice of glass your conservatory can be a natural extension to your home, providing usable, extra living space to be enjoyed all year long.


Having chosen your preferred roof glass option it is equally important to consider the glass walls. PLANITHERM 4S combines solar control and thermal insulating properties, to provide a comfortable year round environment, enabling you to get the most out of your conservatory whatever the weather.


PLANITHERM 4S can save you money on your energy bills too. The thermal insulating properties mean you will use less energy to heat your conservatory to the desired temperature. The energy cost reduction can be as much as 28%. 


Product Benefits

Keep cool in summer?


The PLANITHERM 4S glass is combined with our solar control roof glass products to create high performance conservatory roof glass with outstanding thermal efficiency.


However, when purchasing a conservatory, many people choose solar control glass for the roof, but do not consider it for the sidewalls. In south or west facing conservatories in particular, the amount of heat build up can make the conservatory uncomfortable, even when solar control glazing has been used overhead.


When used alone in conservatory side walls, PLANITHERM 4S:

  • Provides excellent levels of solar protection for conservatory side walls, reducing unwanted heat by more than 57%
  • Has an attractive neutral appearance giving you a clear view of your surroundings


Keep warm in winter?


PLANITHERM 4S conservatory wall glass:

  • Provides unbeatable thermal insulation, reflecting heat back into the room and reducing heat loss more effectively than traditional low-emissivity glass products
  • 63% less heat loss compared to ordinary double-glazing
  • Has market leading thermal efficiency (a U-value of 1.0W/m2K), far exceeding all current available products
  • Increases energy efficiency by retaining more heat in the room
  • Reduces your heating bills
  • Reduces the environmental impact of excess energy production
  • Maximises the amount of natural daylight coming into your home, especially important during the darker winter months
  • Reduces cold spots and draughts Virtually eliminates internal condensation


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