EnergyPlus 90 by Liniar

EnergyPlus 90
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Liniar has developed a 90mm lead-free UPVC window and door system, ideal for the commercial sector.

With triple benefits of Passive House thermal efficiency, PAS24 security and fantastic noise reduction capability (acoustic values as high as 42 decibels), EnergyPlus 90 UPVC windows and doors are available from Liniar fabricators all over the UK.

EnergyPlus 90


EnergyPlus 90 at a glance

  • Passive House compliant with laminate glazing included.
  • U-Values as low as 0.7 W/m²K with triple glazing, quadruple glazed as low as 0.5 W/m²K and a Windows Energy Rating as high as A+40.
  • PAS24:2016 accredited.
  • Secured by Design accredited.
  • Acoustic values as high as Rw (C;Ctr) = 42 (-2;-6).
  • 9 chamber lead-free PVCu design.
  • Featuring the patented Liniar bubble gasket and glazing flipper.
  • Utilises standard Liniar chamfered and sculptured beads and glazing platforms.
  • 48mm & 56mm triple glazing options.
  • Weather tested in excess of BS6375 parts 1, 2 & 3 – the highest possible achieved.
  • Suitable for use with heavy duty hinges and hardware.
  • No steel reinforcement required (up to 1500mm transom/mullion).
  • Sight lines, frame cover and clearances similar to EnergyPlus (looks and operates as a 70mm system).


The background

energy plus 90In 2015, the UK Government announced major plans to build 200,000 starter homes by 2020 – with close to a million homes overall within the same period.

These homes are likely to be built on brownfield land in urban areas, often near busy roads and rail lines.

A study of roads in November 2016 showed that British roads are the most congested in Europe.

In addition, the building of a new high speed rail network (HS2) combined with a proposed new third runway at the already busy London Heathrow Airport are anticipated to add to the already high noise levels in urban areas throughout the UK.

Architects, developers and consumers are already asking for greater acoustic values in their window systems to help combat these increasing levels – but not at the expense of thermal efficiency or security.



Passivhaus TrustBuildings designed to the Passive House (original German “Passivhaus”) standard are becoming more popular, to help conserve precious energy resources.

Developed in Germany in the early 1990s, houses built to Passivhaus standards utilise materials with excellent thermal performance, providing exceptional airtightness with mechanical ventilation.


Thermal efficiency, noise reduction and security

energy plus 90EnergyPlus 90 from Liniar now joins an elite band of window systems able to comply with the exacting Passive House standards.

Many other systems feature messy and time-consuming foam-filled cavities to meet the requirements.

EnergyPlus90 is unique in that its 9-chamber profile – 3 more chambers than Liniar EnergyPlus – has been designed to meet the triple challenges of thermal efficiency, noise reduction and security.


Passive House

Early testing has resulted in Liniar EnergyPlus 90 joining the ranks of a select few window products to claim Passive House certification.

Triple glazed whole window U-values for argon-filled triple glazed units are as low as 0.7 W/m²K with Window Energy Ratings up to A+40, even with laminate included.

Quadruple glazed whole window U-values are as low as 0.5 W/m²K.


Weather Testing

energy plus 90Weather testing carried out on a full-sized EnergyPlus 90 window has surpassed BS6375 requirements and achieved the highest results possible.

  • Water class E1050 (91mph) 1050Pa
  • Deflection load – 2000Pa (126mph)
  • Safety load – 3000Pa (155mph)


Acoustic Testing

energy plus 90With acoustic values as high as 42 decibels, EnergyPlus 90 offers a unique proposition for commercial developers.

Note that a standard Liniar double glazed unit achieves noise reduction of 33 decibels.


PAS24:2016 and Secured by Design

A full sized whole window was fully tested to the stringent security requirements of PAS24:2016 and passed with flying colours.

This means the EnergyPlus 90 window is also fully compliant with Part Q building regulations – critical for the commercial and new build sectors. As a result, EnergyPlus 90 has also achieved Secured by Design accreditation.


Glazing Options

energy plus 90Most PVCu window systems are limited to 40mm glazing options – however EnergyPlus 90 offers triple glazing as standard, in a choice of 48mm or 56mm units.

There are almost endless combinations of glazing available for EnergyPlus 90, to suit every type of  installation.

Triple glazed units can incorporate Pilkingtons Optiphon or Saint Gobain Stadip Silence acoustic glass if high acoustic values are important to your customer.


Colour options

EnergyPlus 90 is available in a range of stocked colours specifically chosen for the commercial sector:

* White * Cream * 7016 Grey * 7038 Grey * 7155 Grey * 7012 Grey * Black


EnergyPlus 90 DoorsEnergyPlus 90 Doors

EnergyPlus 90 can be used with a 68mm composite door blank and featuring a thermally broken low threshold can achieve U-values as low as 0.89 W/m2K.

EnergyPlus 90 UPVC doors will be available in a range of styles, and will include composite entrance doors and French doors.

600450 EnergyPlus 90 by Liniar

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