Architecture Commons^™

Evaluation Of Structural Retrofit Of A Hillside Home, Cameron C. R. Cunningham

Architectural Engineering

On November 24, 2021 after months of initial planning, the project owner received approval from the San Luis Obispo Planning and Building Department for initial work on a residential remodeling submission. This approval including a grading permit and other initial site work to begin renovation of the owner’s hillside residential property.

Optimised Retrofit Strategies For Energy Reduction And Comfort In Dwellings For Future Climate Scenario In Southeast England, Bahaa El Dine Abou El Khoudoud

BAU Journal - Creative Sustainable Development

This paper aims to find an optimum retrofit scheme utilising adaptation and mitigation techniques to a Sub-urban English old house, for an inevitable future climate change. It seeks its aims by investigating the energy performance, as well as the summertime comfort of old dwellings in current and future weather predictions. Studies shows that pre-1990 building stock represents one of the least energy-efficient, as these houses were built before the introduction of building envelope directives in building regulation. Specifically, uninsulated semi-detached houses of the inter-war period can potentially be an essential target for retrofits to reach the 2030 carbon emission goal. …

Retrofitting The Future, Lindsay Pannell

Bachelor of Architecture Theses - 5th Year

The architectural world has felt the push toward building more efficiently and more environmentally-friendly. Programs such as LEED acknowledge well designed, energy efficient buildings that have done their part to build structures that don’t further damage the environment. However, many buildings are being torn down and replaced by these energy efficient buildings. The demolition process and the waste and disposal of materials from these older buildings are negatively affecting carbon emissions. In many cases, the new environmentally efficient buildings would take decades to offset the carbon emissions from the demolition and reconstruction process, while retrofitting buildings can cut back on …

Revitalized Complex: The Redevelopment Of Abandoned Malls, Kyle Mccormick

Bachelor of Architecture Theses - 5th Year

This thesis explores two issues with one solution.

The first issue revolves around a large number of dying malls across America. While some still survive, others have become a deserted wasteland. It is reported that close to 2,000 stores will be closing in 2020. According to Business Insider, over 9,300 stores were closed in 2019, breaking the record of 2018, which was an estimated 8,000 stores.

The second issue involves large cities pushing the limits for population density. In cities such as Atlanta, Dallas, and Phoenix the rise in population cannot keep up with the current housing options provided in …

A Risk Framework For The Delivery Of Long-Term Performance Through The Large-Scale Energy Focused Retrofit Of Housing, Seamus Harrington, Mark Mulville Dr

Conference papers

The 2019 Climate Action Plan (Ireland) seeks to retrofit approximately 500,000 existing homes to attain a B2 Building Energy Rating by 2030. Although not without merit, this presents a number of risks. The authors, through a review of relevant literature and a survey of leading experts in the field of domestic retrofit, set out to explore if and how the implementation, execution, and performance of retrofit strategies that utilise a uniform approach to the retrofit of the decidedly non-uniform existing dwelling stock could create un-intended consequences. It is demonstrated how issues related to indoor air quality, comfort and overheating may …

Retrofit Of Concrete Moment Frames With Masonry Infill In High Seismic Zones, Patricia Francis Pope, Madeleine Rasmussen, Zorana Tat

Architectural Engineering

Seismic events happen all throughout the world and each country has a slightly different way of handling the design of structures subjected to seismic forces. The goal of this project is to provide citizens of the Philippines with an effective way to retrofit their potentially unsafe buildings in the event of an earthquake. However, this retrofit manual will be able to help globally in other third world countries that have similar building techniques. In order to achieve this type of solution, we had to come up with options that took into account the lack of access to tools, materials, and …

Building For The Future: Revitalization Through Architecture, Rebecca N. Perry

Masters Theses

This thesis focuses on the revitalization of a once thriving manufacturing city, Gardner, Massachusetts. In the past the city of Gardner was rich with furniture manufacturers. Over the years the manufacture of furniture has left Gardner. The goal of this thesis is to reinvigorate the furniture making and craft back into Gardner. The proposed revitalization of the town was furthered through teaching and the design and production of a new product line. The renovation and retrofit of an existing now abandoned, building. Designing to meet the strategies, methods, and processes of furniture production; merged with an architecture meant to signal …

Zero 2020, The Low Energy Retrofit And Renovation Of A Precast Concrete Building In Ireland Exploring Site Nzeb Energy Retrofit In Precast Grid Optimized Low Rise ‘60s Buildings, Marc O Riain, Jim Harrison, Kevin Mccarthney

Publications

This paper contextualizes the 1967 design of Regional Technical College (RTC) campuses in Ireland, with reference to the influence of oil crises on early green design and the establishment of a regulatory environment. Variation between NZEB and Passive House low energy strategies are discussed. Design Science and Action research inform solution-oriented methodologies in a pilot retrofit project on 1.5% area of an RTC building. Problem investigation notes previous schemes, stakeholder’s goals, building evaluation and energy performance diagnosis. Environment interaction between context and artifact are discussed. Design validation includes simulated envelope performances, which inform design iterations. Phenomena are evaluated in terms …

Use Of Fiber-Reinforced Cements In Masonry Construction And Structural Rehabilitation, Ece Erdogmus

Durham School of Architectural Engineering and Construction: Faculty Publications

The use of fiber reinforcement in traditional concrete mixes has been extensively studied and has been slowly finding its regular use in practice. In contrast, opportunities for the use of fibers in masonry applications and structural rehabilitation projects (masonry and concrete structures) have not been as deeply investigated, where the base matrix may be a weaker cementitious mixture. This paper will summarize the findings of the author’s research over the past 10 years in these particular applications of fiber reinforced cements (FRC). For masonry, considering both mortar and mortar-unit bond characteristics, a 0.5% volume fraction of micro fibers in type …

Negative Life-Cycle Emissions Growth Rate Through Retrofit Of Existing Institutional Buildings: Energy Analysis And Life Cycle Assessment Of A Case Study Of University Dormitory Renovation, Somayeh Tabatabaee, Benjamin S. Weil, Ajla Aksamija

Student Showcase

ABSTRACT: Buildings account for about one fifth of the world`s total delivered energy use, and thus methods for reducing energy consumption and carbon emission associated with buildings are crucial elements for climate change mitigation and sustainability. Voluntary challenges, mandates, and, particularly, public institutions have articulated these goals in terms of striving for “net-zero energy” buildings, and mandated measurable reductions in greenhouse gas emissions. Typically, the definition of net-zero and other energy consumption reduction goals only consider operational energy. By ignoring embodied energy during the entire life-cycle of the building (manufacture, use and demolition of materials and systems), such goals and …

Monkstown Enerphit And Passive House Extension, Joseph Little

Articles

Unlike new buildings which can be sequenced to maximise thermal continuity, airtightness and speed; the very existence of sub-optimal orientation and constructon methods, old rising walls, intermediate floors, decorative features of a bygone era etc., all complicate the works and impinge upon the performance possible in deep energy-efficient retrofits [1]. It is clear that the more that is stripped away of the old fabric, the more ‘sins of the past’ can become evident and the more control is gained (which ensures the standard is met); yet the building becomes less and less an old building and, if the issue isn’t …

Building Fabric Design : Thermal Performance Standards, Joseph Little

Articles

This is the first of a series of articles using content from the new RIAI Building Fabric Design CPD which explores a range of themes of central importance to designing buildings that are highly energy efficient, genuinely compliant and perform to their design intent and specification. As the articles are short and the themes are often complex, they can be at best a short introduction to the issues raised. In this article we will look at the new minimum building fabric standards: these are far more onerous than much of the Industry understands.

The Latest Homebond House Building Manual : A Critique, Joseph Little

Articles

The Homebond House Building Manual had the distinction of being called the ‘bible’ for many building during the boom. It was a commonly‐used reference book, even for many builders and architects who never built housing estates and therefore had little need of a Homebond guarantee. One might design a construction detail of a dwelling differently, but one did it with an awareness of what the manual showed. It gave the insurance scheme great credibility and standing. This architect remembers reluctantly getting involved with an external wall insulation self‐build project in rural Ireland in 2006 (far beyond his normal travel distance) …

Forced Vibration Testing And Analysis Of Pre- And Post- Retrofit Buildings, Erica Dawn Jacobsen

Master's Theses

ABSTRACT

Forced Vibration Testing and Analysis of Pre- and Post- Retrofit Buildings

Erica Dawn Jacobsen

The primary goal of the thesis was to detect the retrofit through vibration testing of both buildings. The secondary goal focused on correctly identifying the behavior of the building through FVT, comparing that behavior to computational model predictions, and determining the necessary level of detail to include in the computational modeling. Forced vibration testing (FVT) of two stiff-wall/flexible-diaphragm buildings yielded natural frequencies and mode shapes for the two buildings. The buildings were nearly identical with the exception that one had been retrofitted. Both buildings were …

Thermal Bridging - Understanding Its Critical Role In Energy Efficiency, Joseph Little, Beñat Arregi

Articles

Plane element heat loss[1] and thermal bridging[2] together constitute all the conduction heat loss (measured in W/K, watts per kelvin) through the thermal envelope[3] of a building. Perversely insulating the plane elements more and more without carefully dealing with junctions can lead to a significant increase in thermal bridging heat loss. This is often more significant in poorly thought-out energy-focused retrofits than in existing or new buildings.

Top Tips For Domestic Refurbishment, Joseph Little

Articles

1) It stands to reason that insulating a wall should not affect its strength or longevity, nor should it result in a buildup of moisture (inter-stitial condensation) or mould. However the Industry is currently gripped with a desire to insulate to the highest standard (U-value) at the lowest financial cost, as quickly as possible, with little thought of these issues. An appropriate, robust solution must take the original wall, the occupant’s health, the room’s function and even the building’s location into account.

Breaking The Mould 5 : Comparative Simulation Of Internal Insulation Systems, Joseph Little

Articles

In the last edition of Construct Ireland ‘Breaking the Mould IV’ established the standard that should be used to evaluate thermal upgrades of single leaf walls, described steps to physically prepare the wall, explained some of the mechanisms that affect the likelihood of mould and gave criteria for judging the simulations outputs. The next step is to simulate a number of permutations of typical internal insulation systems using WUFI Pro under IS EN 15026.

Breaking The Mould 4 : Condensation Risk Analysis – The Standards And The Issues, Joseph Little

Articles

The ‘Breaking the Mould’ series of articles was written to explore the range of issues associated with upgrading single leaf walls with a focus on occupant and building health as much as energy, just as the Home Energy Saving Scheme was launched. A year on from the first article the need for greater understanding and clear guidance for the Industry is greater than ever. This is because the Government’s ‘Energy Demand Reduction Target’ (EDRT), under the 2006 EU ‘Energy Services Directive’, is bringing energy utilities (e.g. ESB, Bord Gáis) into the refurbishment market.

Breaking The Mould 3, Joseph Little

Articles

This article is the third in a series looking at thermal upgrades to single-leaf walls of existing houses. The theme for this article was intended to be an analysis of various drylining options for brick and rubble-built walls of older properties. That will follow. The following events forced a change in focus.

Seismic Performance Of Unreinforced Masonry Walls Retrofitted With Post-Tensioning Tendons, Daniel Louis Lazzarini

Master's Theses

Unreinforced masonry (URM) structures have historically been regarded as structurally unsound in response to seismic events. The tendency for URM walls to collapse out-of-plane in a brittle manner is continually cause for concern. Retrofit of these walls is necessary in order to prevent severe damage and injury to occupants.

This paper is concerned with the retrofit of unreinforced masonry (URM) walls in response to out-of-plane loading. A retrofit design was developed and verified through structural testing. The selected retrofit technique incorporates vertical coring of URM walls to allow for the insertion of a single post-tensioning (PT) tendon. Tendons are spaced …

Breaking The Mould 2 : An Analysis Of Single-Leaf Insulation Upgrades, Joseph Little

Articles

This article is the second in a series looking at thermal upgrades to single-leaf walls of existing houses. It compares a range of ways of upgrading masonry single-leaf walls, particularly the ubiquitous hollow block wall, and the impact of those decisions on moisture content, wind- and airtightness, cost and heating. Future articles will look at various drylining approaches for a range of walls including brick walls of various widths.

Breaking The Mould 1 : A Study Of Condensation In Single-Leaf Concrete Wall Upgrades, Joseph Little

Articles

This article is the first of a series looking at upgrade options and issues associated with single-leaf walls of existing houses. This article will focus on insulated drylined concrete block walls of the ubiquitous housing estate house. This will include the findings of software that dynamically models moisture movement through the wall over several years. The article following this will look at a range of options for replacing existing drylining or installing drylining where it never was before, be that for a solid block wall of a 1950s house or a solid brick wall of an 1850s house.

In Transit - Transition Movement Inspires Dramatic Carbon Cuts In House Refurb, Joseph Little

Articles

Drawing on the ‘Energy Descent Action Plan’ he developed at Kinsale, Rob Hopkins and his team launched Transition Town Totnes (in the UK) one and a half years ago. 64 recognised transition communities and 600 other groups (and counting) are now in communication with Rob’s team to launch their versions of this initiative in their communities worldwide.¹ The Transition Ireland Network is coordinated by Davie Philip of Cultivate and several transition initiatives are underway here.

Frame It - Thoughts On Education, Reducing Carbon And Vapour, Joseph Little, Robbie Cousins

Articles

Joseph Little believes timber frame can be the backbone of a new generation of low-carbon, energy-efficient housing, and be used as an intelligent response to Climate Change and fuel prices. But he tells Robbie Cousins that timber frame manufacturers, suppliers and architects need to gear-up and work more closely together if the true potential of this vision is to be realised.

Joseph Little’s chief bugbear is poor construction standards & details on site and the core of this issue is how the knowledge set of architects and builders and how standards are controlled. The seeds of this idea may have …

Baugruppe - Lessons From Freiburg On Cooperative Housing : Lessons From Freiburg On Cooperative Housing, Joseph Little

Articles

Creating Sustainable Communities in the UK and Ireland

The Genesis of Quartier Vauban

Construct Ireland - Lime-Hemp - A Potential Solution To A Concrete Problem, Joseph Little

Articles

This article is intended to act as an exploration and provocation. Why do we build the way we do, what effect does that have? Could we for instance, design and specify buildings that actually benefit the Environment rather than burden and pollute it as currently. Is it possible that the construction of a house could absorb CO₂ thereby transforming new housing estates or apartment buildings into giant absorbers of carbon dioxide? Imagine Ireland being able to count commercial constructions or new housing among its ‘carbon sinks’, in place of Siberian forests or the carbon credits that the Government will …

Construct Ireland - Partial Fill Cavity Walls, Joseph Little

Articles

An examination of whether it still deserves its best practice status in the Irish Construction Industry in light of higher U-Values, construction practices, recent research and cultural pressures.