Following the success of a heritage morning in Birmingham in 2019 and Leeds in 2023, we chose to organise a similar event in Liverpool, centred around the decarbonisation of built heritage, an area at the top of clients’ agendas.  This topic can be complex and intimidating with a plethora of information available but little clarity on what this means for the heritage sector in particular.  Therefore, this event offered a novel opportunity to learn from industry experts, all focused on demystifying this complex topic to reassure and empower attendees.

The morning was held at the stunning Grade I listed Liverpool Cathedral, in a key Northern Powerhouse city which is currently developing five times faster than London.  When we consider Liverpool’s ambitious Net Zero Carbon target of 2030, it’s clear that decarbonisation, restoration and improved thermal performance of the city’s traditional buildings needs to be top priority.

We were delighted to be joined by experts in the field of energy efficiency, decarbonisation and retrofit:

Quadriga Contracts Ltd (Lindsay Law: Managing Director) – Lindsay introduced the morning, discussing the urgency of the climate emergency and the pivotal role the decarbonisation of built heritage can play in meeting net zero targets.  The presentation covered embodied energy, the behaviour of traditional buildings and how a fusion between traditional craftsmanship and modern technology can provide solutions to the decarbonisation of built heritage.  She also set out the skills shortage currently facing the sector and how Quadriga are helping to tackle this through various initiatives.

AtkinsRéalis (Mark Postill: Decarbonomics Delivery Lead) – Mark introduced the innovative Decarbonomics platform and consultancy which provides solutions to building owners and portfolio managers looking to decarbonise their building stock. Mark focussed on the effective and sympathetic decarbonisation of built heritage and demonstrated how Carbon Data Insights can forecast future carbon and energy improvements by using existing data.  This innovative software will change the way carbon and energy considerations are considered in everyday strategic business cases and decision making

Selectaglaze Secondary Glazing (Darren Berryman: Sales Manager) – This presentation advised on all elements of secondary glazing in heritage buildings, including the creation of good specifications on projects requiring improved thermal performance.  Darren outlined the performance levels which can be achieved through the use of secondary glazing, its benefits, potential limitations and more technical aspects such as fixings and design considerations.

Lime Green (Dominic Putnam: Head of Marketing and Business Development) – This presentation covered Lime Green’s Warmshell internal wall insulation system which is designed to improve the thermal efficiency of traditional and solid masonry wall construction using natural wood fibre material.  Dominic provided a comprehensive overview of low carbon retrofit projects within the heritage sector and how Warmshell insulation can significantly improve the thermal performance of heritage buildings.

We hope that everyone left the event feeling empowered to tackle projects requiring the decarbonisation of built heritage and made some valuable contacts and connections in the process.  The feedback received was very positive and we’re looking forward to running more events like this in the future, as net zero targets loom.

If you would like to be kept updated on events and don’t already receive emails from us, please get in touch with Laura Brown on laurab@quadrigaltd.com to ensure you don’t miss out on future events.  You can also join the Heritage and Conservation Networking LinkedIn Group using the link below.

https://www.linkedin.com/groups/8682099/

The Basilica of St. Denis just north of Paris is considered to be the first Gothic building in the world and demonstrates the evolution from Romanesque architecture. In 1122 Abbot Suger, friend of French kings began to rebuild and enlarge the existing abbey, citing the building’s inability to deal with the large crowds of pilgrims who visited. He aimed to introduce more space and light. This was achieved with the use of flying buttresses and large stained-glass windows and through his work, Gothic architecture was born.

Typical features

The Flying Buttress

A defining feature of Gothic architecture, a flying buttress consists of a half arch that projects from a building wall down into a pier, conveying to the ground the weight and horizontal force of a roof, vault or dome. The balancing forces allow the construction of grander, taller and more elaborate buildings. By diverting the weight of the roof away from the walls, the walls could be made thinner and more windows installed providing the buildings with an abundance of natural light. As well as serving a functional purpose, flying buttresses are also decorative in nature featuring ornate designs.

The Pointed Arch

When we think of Gothic architecture, the pointed arch is probably what first comes to mind. As with many of the features of this style, the pointed arch is as much functional as aesthetic. Its shape distributed the force of ceilings, transferring weight onto columns and other load bearing supports, freeing up the walls. The stronger arches allowed for vertical expansion, being built tall to reach up to the heavens, with their design emphasising the height of the building.

The Vaulted Ceiling

The ribbed vault was popular in Gothic architecture due to the reduced need for inner load-bearing walls, allowing the interior space to be opened up. Ribbed vaults are composed of a framework of crossed or diagonal arched ribs and they were added to the Romanesque barrel vault to increase the transfer of loads to the ground. Ribbed vaulted ceilings can cover vast spaces and provide visual symmetry.

Tracery

Tracery involves the division of windows into sections of various sizes and shapes by stone frames or moulding. Tracery in the Gothic period increased the amount of glass panelling to allow more natural light and usually featured lancet or oculus patterns. A lancet window is narrow with a pointed arch whereas the oculus or rose is circular, almost like a wheel with radiating stone spokes.

Stained Glass

Large stained-glass windows were prevalent in Gothic cathedrals, showcasing a kaleidoscope of colours and patterns as well as detailed biblical scenes. The large windows allowed more dazzling natural light to enter the building.

Ornate design

Gothic architecture was revolutionary in its incorporation of aesthetic values. No longer were buildings purely functional, they had architectural merit and beauty in their own right. As the appreciation for architectural beauty grew, more ambitious and ornate designs came to fruition.

Famous examples of Gothic architecture

Chartres Cathedral

Chartres Cathedral is a UNESCO World Heritage Site, described as “the high point of French Gothic Art.” It is well preserved with the majority of the original stained-glass windows surviing intact and only minor changes having been carried out to the architecture since the early 13th century.

Cologne Cathedral

Cologne Cathedral is a dramatic example of Gothic architecture and was declared a UNESCO World Heritage Site in 1996.  It is the tallest twin-spired church in the world and Germany’s most visited landmark.

Westminster Abbey

Westminster Abbey sits just west of the Palace of Westminster and is the traditional place of the coronation and burial of British monarchs.

Notre-Dame de Paris

Considered to be one of the finest examples of French Gothic architecture in the world, Notre-Dame is one of the most widely recognised landmarks in Paris.  After a devastating fire in 2019, restoration of the cathedral is hoped to be completed by Spring 2024 in time for the Paris Summer Olympics.

Canterbury Cathedral

Canterbury Cathedral is one of the oldest and most famous Christian buildings in England and forms part of a World Heritage Site.

Although founded in 597, the cathedral was rebuilt in the 1070s and again in the 12th century following a fire.

Seville Cathedral

Completed in the early 16th century, Seville Cathedral is the fourth largest church in the world and the largest Gothic Church.  It was designated a UNESCO World Heritage Site in 1987.