GREEN GUIDE TO HERITAGE CONSERVATION

Green Guide To Heritage Conservation-Free PDF

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This publication is intended only as a guide and should not be used as a substitute for professional advice. The Historic Resources Branch of Manitoba Culture Heritage and Tourism has made every effort to ensure. the accuracy of the advice given and does not accept liability for loss or damage arising from the use of. this information Owners of designated heritage buildings who want to use this information will benefit. from discussing their proposals with Historic Resources Branch staff or with their local Municipal Heritage. Advisory Committee,Historic Resources Branch,Manitoba Culture Heritage and Tourism. Main Floor 213 Notre Dame Avenue,Winnipeg MB R3B 1N3. Phone 1 800 282 8069 ext 3844,www manitoba ca heritage. The Historic Resources Branch gratefully acknowledges the contribution of the Government of Canada. Historic Places Initiative in supporting the creation of this document. Cover Photos J B Davey and Son Building Carberry MB. Marringhurst Heritage House Glenora area MB,Electric Railway Chambers Building Winnipeg MB. Built heritage is a vital piece of our past There are nearly 700 designated heritage sites in Manitoba. from ancient sites and burial grounds to houses churches bridges farms businesses warehouses and. parks Built heritage is a significant resource that plays an important role in the economic cultural and. environmental sustainability of our rural areas towns and cities. Many heritage buildings were designed to last centuries and reusing them reduces the need for new. construction This saves energy and resources and retains the identity and character of our communities The. labor intensive process of rehabilitating older heritage buildings supports local businesses creates jobs and keeps. wages in our community We cannot build our way to sustainability by tearing down what we already have. Although some old buildings may be less energy efficient than some newer ones retrofits can be done to make. our heritage buildings more efficient Retaining existing elements of old buildings and seeking to improve their. energy performance is a heritage conservation principle that makes sense for the planet and the economy. Relationship between Heritage Conservation and Sustainability. This guide focuses on environmental sustainability While we should all be doing our best to reduce. personal consumption buildings remain major consumers of energy and materials and are one of the main. contributors to greenhouse gas, Buildings are vast store rooms of energy It takes a lot of energy to construct a building For example building.
a 50 000 square foot 4645 m2 commercial building requires the same amount of energy it takes to drive a. car 20 000 miles 32 187 kilometers a year for 730 years 1 It takes energy to extract raw materials from the. earth and energy to manufacture finished building materials more energy to transport those materials to a. construction site and still more energy to assemble the building All of this energy the total energy required. to produce and maintain the building over its entire lifecycle is known as embodied energy. If a building is demolished and taken to the landfill the energy locked up in it its embodied energy is. wasted There is a tremendous impact on the environment when something new is built Avoiding new. construction by retaining and reusing heritage buildings is an ecologically conscious decision. Calculating the amount of energy embodied in a building is a primary goal in engineering studies Theses. studies are called life cycle assessments and they track the total amount of energy and materials that flow. into and out of the environment when producing materials or components or when assembling them 2 While. new buildings meeting today s highest energy efficiency standards typically consume less energy for heating. and cooling than older buildings without energy saving retrofits this approach ignores the fact that many new. building materials require a tremendous amount of energy to produce and most cannot be reused or recycled. In April 2007 the provincial government outlined its Green Building Policy for new. provincially funded projects It establishes the province s integral role in promoting. environmental awareness and sustainable development across the province. For more information visit www manitoba ca greenbuilding. Recent research shows that it takes 35 to 50 to the environmental energy efficiency upgrades. years for an energy efficient new building to that can be carried out on designated heritage. save the amount of energy lost in demolishing an buildings Altering important interior spaces. existing building 3 By maintaining and upgrading or architectural elements could result in the. heritage buildings we retain the embodied permanent loss of important historical value. energy they possess and prevent unnecessary, waste in landfill sites A properly upgraded Although care must be taken there are many. historic building can be as efficient overall as a improvements and retrofits that can work well in. replacement building 4 older heritage homes and commercial buildings. This guide will help building owners make informed. There are various environmental initiatives decisions about which if any ecologically friendly. including the LEED Leadership in Energy and changes to make and when to make them The. Environmental Design program that promote the benefits of the suggestions in this guide are not. reuse of materials and buildings However none limited to reducing ecological footprints They also. of these initiatives specifically tackle the reuse of help preserve our heritage by extending the lives of. designated heritage buildings There are limits buildings while saving money. Old Versus New,In 2004 the Historic Resources,Branch of Manitoba Culture Heritage. and Tourism partnered with Parks,Canada and the Athena Institute. to compare the ecological effects,of keeping historic buildings as. opposed to building new structures in, Red River College Princess Street Campus Winnipeg MB.
the same locations The report shows The historic lane is preserved as a glass atrium between the two. buildings New and old technologies work together to achieve. that significant environmental impacts excellent energy efficiency for the building. can be avoided by preserving an,existing building instead of building. a new one For more information,see Athena Institute LCA for Existing. Historic Buildings Report at,www athenasmi org, Red River College Exchange District Campus Winnipeg MB. Adaptive Re use The facades of heritage buildings along Princess. Street are re purposed for the new complex rather than demolished. How to Start Greening a Historic Building,Parks Canada s Standards and Guidelines for. the Conservation of Historic Places in Canada,describes in detail the steps required for.
the proper conservation of historic building,elements The elements of a building that are. most important to preserve are called character,defining elements 5 Character defining elements. CDEs are important physical features of historic,buildings which should not be significantly. altered even if they improve energy efficiency,If you can t define the historic character of a. building and its site prior to work then you may, very well destroy it during the work Owners of St Paul s Anglican Church St Francois Xavier area MB.
municipally and provincially designated heritage Detail of repaired wood window frames. buildings can find out more about their buildings,specific character defining elements on the. Canadian Register of Historic Places at,www historicplaces ca or by calling. 1 866 632 6183 Physical features of heritage,buildings that are not character defining may. be excellent candidates for environmental,improvement. Retrofitting should be limited to measures that,provide reasonable energy savings at reasonable.
costs with the least intrusion or impact on the, character of the building Overzealous retrofitting. which introduces damage to historic building, materials should not be done St Paul s Anglican Church St Francois Xavier area MB. Window frames are retained and repaired by piecing in new. material to match the old, If you are interested in conservation but your building is not designated you can perform. your own assessment of the character defining elements of the building These often. include windows exterior cladding roofs porches or entrances and some interior features. and finishes Note The US National Park Service offers an excellent interactive website to. help property owners identify the distinctive materials features and spaces of the building. to conserve Visit Walk through Historic Buildings Learn to Indentify the Visual Character. of a Historic Building at http www nps gov history hps tps walkthrough start htm. Green Historic Building Checklist, Before the development of today s sophisticated Natural and Durable Materials. building materials and equipment architects Stone brick and wood require very little energy. designed their buildings using proven methods to process and don t pollute indoor air They can. of construction heating cooling ventilation and also be repaired with minimal skills and tools. water use Many historic buildings already have and tend to be durable and renewable Heavy. physical features that conserve energy or create a masonry walls are an excellent thermal buffer. more comfortable healthier indoor environment that help prevent buildings from gaining or losing. These features should be maintained or restored too much heat. and treated as part of the overall green strategy,for the building.
Insulation and Building Envelopes,Building envelope design in older buildings is. Passive Solar Technologies,most effective at allowing moisture to evaporate. Older buildings were often built to increase as it penetrates walls Modern impermeable. daylight reducing the need for artificial lighting building materials obstruct this process instead. Courtyards or light wells allow light to penetrate of letting moisture out they can often trap it. deep into buildings As light enters through inside accelerating mold growth and decay Be. windows heat is absorbed and slowly released careful not to reduce air infiltration to the point. by the materials inside Brick stone and where the building is completely sealed and. concrete help maintain consistent temperatures moisture movement inside to out is prevented. throughout the day This is especially useful Without some air movement condensation. during winter In summer awnings shades or problems could occur throughout the building 6. shutters keep interiors cool,Heritage building owners looking to improve. Natural Passive Ventilation energy efficiency should first ensure the passive. design features of the building are as efficient as. Older buildings typically used operable windows possible without making physical alterations The. to provide fresh air and light rather than the second step is to have a green heritage retrofit. mechanical ventilation systems most modern plan that includes appropriate energy efficiency. buildings use Any time the mechanical heating upgrades to improve the building s overall thermal. or air conditioning equipment can be turned efficiency These two steps can result in a 50 per. off and the windows opened energy is saved cent decrease in energy use in historic buildings 7. Preserve high ceilings to allow air to circulate and. light to enter a building,Getting Started with Energy Efficient Upgrades. Illustration by mckibillo Used with permission, Energy efficiency upgrades to historic buildings 1 sealing against air infiltration.
should begin with the simplest and least 2 attic insulation. expensive retrofits offering the highest potential 3 storm windows. for saving energy With historic materials and, systems a typical one size fits all approach 4 basement and crawl space insulation. may not be possible Solutions adapted for 5 duct and pipe insulation. the situation may be required If necessary 6 awnings and shading devices. contact professionals in historic conservation,7 doors and storm doors. ex architects engineers and mechanical,contractors for help 8 interior wall insulation. 9 heating ventilation and air conditioning HVAC,Once you have decided which elements to preserve. and what to upgrade develop a plan of action The, following list includes the most common retrofitting.
measures for historic buildings,Energy Assessments. Manitoba Hydro offers in home energy assessments They are a convenient way to find. out what needs to be done to improve comfort and energy efficiency To arrange for an. assessment contact Manitoba Hydro toll free at 1 888 MBHYDRO 1 888 624 9376 or. visit Manitoba Hydro at Power Smart Home Energy Evaluation Services at www hydro mb ca. 1 Air Infiltration 2 Attic Insulation, Drafts often cause people to turn up the heat and Adding insulation in accessible attic spaces is. run it longer Reducing drafts air infiltration is a very effective at saving energy reducing heat loss. high priority in a green heritage retrofit plan The and can generally be done at a reasonable cost. cost is low little skill is required and the benefits but it does require some skill to install. are substantial In most situations extensive, sealing is the single most cost effective energy In the winter moist heated air constantly rises. years for an energy efficient new building to save the amount of energy lost in demolishing an existing building 3 By maintaining and upgrading heritage buildings we retain the embodied energy they possess and prevent unnecessary waste in landfill sites A properly upgraded historic building can be as efficient overall as a replacement building 4 There are various environmental initiatives

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