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Por Sarina Ayoubzadeh 7 de abril de 2025
The recent earthquakes in Portugal have shaken residents across various cities. The first major tremor, felt by the majority on August 26, 2024, at 5:11 a.m., could have startled many from their sleep. With a magnitude of 5.3 on the Richter scale, it was considered the strongest seismic event since the massive Lisbon earthquake of 1969, affecting nearly the entire western coast for the first time—for more information you can check out Portugal resident . Not many times passed, until on 17th of Feb 2025 at 13:24, the second earthquake shook the residents again less than 6 months later, this time with 4.7 the Richter scale starting from Costa da Caparica covering 18 km till Lisboa, although residents in Lisbon have felt it stronger—”Buildings in the Lisbon area shook at 1:24 p.m., causing screams and crying” Publico.pt . These recent earthquakes in Portugal, occurring within just six months, have shaped a new concern among real estate buyers. In addition to the usual questions clients ask when visiting a property for rent or sale—such as the monthly condominium cost, the last time the water pipes were cleaned, or when the kitchen and bathroom were last renovated—real estate agencies and property sellers should now be prepared to hear a new question: “Does the building have any anti-seismic construction or preventive measures?” Asked a 30-year-old woman looking to purchase her first apartment with her partner. The answer for buildings constructed in the 80s and 90s is a clear 'No.' Nearly 68% of buildings in the Lisbon metropolitan area were built before effective seismic protection legislation was in place, according to reports from SIC and Idealista . Therefore, does it mean that the owners of residents in buildings built before the 90s should be worried or are they in danger? What measurements can we take to decrease the possibilities of being in danger in times of earthquake while we are residents of old buildings before the 90th? Although, the topics about anti-seismetic measurement, or monitoring the Construction Quality and the earthquake safety standards have fallen into Civil Engineering and Construction domain, there are some elementary measurements that every one of us should know or at least can upgrade the safety a little bit when it comes to renovation of property. These are some tips that can be helpful for older buildings during renovation: Check for Loose or Weak Elements – Replace cracked walls, weak roofs, or poorly maintained parts that could collapse during shaking. Secure Interiors – Anchor heavy furniture and appliances to prevent injuries. Emergency Preparedness – Have an evacuation plan and a disaster kit (water, food, first aid, flashlight, etc.). Bracing & Securing – Secure heavy furniture, shelves, and appliances to walls to prevent injuries. However, when it comes to new construction from the ground up—such as custom homes or single-house developments—modern technology, updated regulations, and advanced equipment make it highly recommended to incorporate anti-seismic measures. Ensuring earthquake-resistant construction enhances both the safety and long-term comfort of future residents who invest significantly in newly built properties. Before diving into this topic, we invite you to explore our webpage, Custom Home Construction: Energy-efficient, High-Quality Homes in Portugal , as sustainability remains a key trend in the real estate market. Investing in an Older Multi-Story Building vs. a Newly Built Single Home: Which is Better? The decision between purchasing an older multi-story building or investing in a newly constructed single home depends on your priorities, budget, and risk tolerance . Older buildings often come with a lower initial cost but may lack seismic protection , require higher maintenance , and might not meet modern safety standards. On the other hand, newly built homes with earthquake-resistant designs and modern technology offer better safety, energy efficiency, and sustainability —though they generally come with a higher price tag . Each project’s budget varies based on materials, design, embedded technology, and location . While we won’t dive too deeply into civil engineering or specialized construction topics, it’s worth exploring some of the latest trends in property development , particularly those that emphasize sustainability, eco-friendliness, and earthquake resistance . Trending Housing Preferences: Wood & Container Homes In countries like Canada and the United States , wood-framed houses dominate the market due to their affordability, flexibility, and earthquake resistance . In contrast, concrete structures remain popular in parts of Europe, though alternative building methods are gaining traction. 
A car is parked in front of a large apartment building.
Por Sarina Ayoubzadeh 14 de novembro de 2024
Quando estás a comprar ou vender um apartamento, seja como comprador, vendedor ou profissional da área imobiliária, há fatores essenciais a ter em conta antes de tomar qualquer decisão ou fechar um negócio. Localização, potencial do bairro, estado atual da propriedade e comparações com outras propriedades na zona são aspectos fundamentais.
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Energy-Efficient Design in Renovation: Transforming Homes for a Sustainable Future

Sarina Ayoubzadeh

In today's world, where environmental concerns and rising energy costs are at the forefront of many homeowners' minds, energy-efficient design in home renovation has become more crucial than ever. At Charmtones , we're committed to helping you create beautiful, functional spaces that are also kind to the environment and your wallet. In this post, we'll explore the importance of energy-efficient design in renovation and share some expert insights to help you make informed decisions for your next project.

The Importance of Energy-Efficient Renovations

Energy-efficient renovations offer numerous benefits:


Reduced energy bills: By improving your home's energy efficiency, you can significantly lower your monthly energy costs.

Increased comfort: Proper insulation and efficient systems lead to more consistent temperatures and improved indoor air quality.

Environmental impact: Reducing energy consumption helps decrease your carbon footprint and conserve natural resources.

Increased property value: Energy-efficient homes are increasingly attractive to potential buyers, potentially boosting your property's value.


Reduced energy bills :


  • By improving your home's energy efficiency, you can significantly lower your monthly energy costs.
  • Homeowners can often save a notable amount on their energy bills through efficient upgrades. 
  • Example: Upgrading to a high-efficiency HVAC system can reduce heating and cooling costs considerably.



Increased comfort :



  • Proper insulation and efficient systems lead to more consistent temperatures throughout your home.
  • Improved indoor air quality through better ventilation and filtration systems.
  • Reduction in drafts and cold spots, creating a more pleasant living environment.


Environmental impact :


  • Reducing energy consumption helps decrease your carbon footprint.
  • Conserves natural resources by lowering demand for fossil fuels.
  • An average energy-efficient home can reduce carbon emissions by 2-3 tons per year.


Increased property value :



  • Energy-efficient homes are increasingly attractive to potential buyers, potentially boosting your property's value.
  • Studies show that energy-efficient features can increase a home's value by 2-6%.
  • Certification programs like ENERGY STAR can make your home stand out in the real estate market.

Long-term cost savings :


  • While initial costs may be higher, energy-efficient renovations typically pay for themselves over time.
  • Many energy-efficient appliances and systems have longer lifespans, reducing replacement costs.
  • Some upgrades may qualify for tax credits or rebates, further offsetting costs.

Enhanced durability :


  • Many energy-efficient upgrades also improve your home's overall durability.
  • Better insulation and ventilation can prevent moisture issues, reducing the risk of mold and structural damage.
  • High-quality windows and doors not only save energy but also provide better security.


Future-proofing your home :


  • As energy costs rise and environmental regulations tighten, energy-efficient homes will become increasingly valuable.
  • Adapting now puts you ahead of future building code requirements.
  • Energy-efficient homes are better prepared for integration with smart home technologies and renewable energy systems



Expert Insights: Behrooz Saeidi on Energy-Efficient Design

We reached out to Behrooz Saeidi, an expert in sustainable architecture and energy-efficient design, for his insights on incorporating these principles into home renovations. 

According to experts like Mr. Saeidi, some key areas to focus on for energy-efficient renovations include:

  • Insulation: Proper insulation in walls, attics, and floors is crucial for maintaining desired temperatures and reducing energy waste.
  • Windows and doors: On the window section to include information about low-E coatings, double or triple-pane windows, and proper installation techniques..
  • HVAC systems: The importance of proper ventilation, including heat recovery ventilators (HRVs) or energy recovery ventilators (ERVs), in maintaining indoor air quality while conserving energy.
  • Lighting: LED bulbs and smart lighting systems can cut electricity use while providing excellent illumination.
  • Appliances: Energy Star certified appliances use less energy without sacrificing performance.
  • Renewable energy: Consider incorporating solar panels or other renewable energy sources to further reduce reliance on the grid.
  • Smart home technology:The role of smart thermostats, energy monitoring systems, and home automation in optimizing energy use.
  • Air sealing: The importance of air sealing in addition to insulation. This involves identifying and sealing air leaks throughout the home to prevent drafts and energy loss.
  • Cool roofing: The benefits of cool roofs or reflective roofing materials in reducing heat absorption and cooling costs, especially in warmer climates.
  • Landscaping for energy efficiency: Include information on strategic landscaping, such as planting shade trees or installing green roofs, to naturally cool the home and reduce energy consumption.
  • Government incentives: The available tax credits, rebates, or other incentives for energy-efficient home improvements, as these can offset initial costs.
  • Thermal bridging: The concept of thermal bridging and how to minimize it in the building envelope to improve overall insulation effectiveness.
  • Building materials: The use of sustainable and energy-efficient building materials, such as recycled or locally sourced products, which can contribute to overall energy efficiency and environmental impact.
  • Energy storage: The potential of home battery systems to store energy


Implementing Energy-Efficient Design in Your Renovation

When planning your renovation, consider these steps to maximize energy efficiency:

  • Start with an energy audit: This will help identify areas where your home is losing energy and guide your renovation priorities.
  • Set clear goals: Determine what you want to achieve in terms of energy savings and comfort improvements.
  • Work with experienced professionals: Choose contractors and designers who have experience with energy-efficient renovations.
  • Consider passive design principles: Utilize natural light, ventilation, and thermal mass to reduce energy needs.
  • Don't forget about water efficiency: Incorporate low-flow fixtures and water-saving appliances to reduce water waste.
  • Plan for the long term: While some energy-efficient upgrades may have higher upfront costs, consider the long-term savings and benefits.

Start with an energy audit:

  • Hire a certified energy auditor to conduct a thorough assessment of your home.
  • Use thermal imaging to identify heat loss areas.
  • Analyze your energy bills to understand consumption patterns.

Set clear goals:

  • Establish specific, measurable targets for energy reduction.
  • Prioritize improvements based on potential impact and budget.

Work with experienced professionals:

  • Research and interview contractors with green building certifications.
  • Request case studies or references for their energy-efficient projects.

Create a comprehensive renovation plan:

  • Develop a detailed plan that integrates energy-efficient upgrades with your overall renovation goals.
  • Consider phasing the work if necessary to manage costs.

Consider passive design principles:

  • Optimize building orientation and window placement for natural light and heat gain/loss.
  • Incorporate appropriate shading devices for different seasons.
  • Use thermal mass materials strategically to regulate indoor temperatures.

Upgrade insulation and air sealing:

  • Address the building envelope first: walls, roof, floors, and foundation.
  • Pay special attention to sealing air leaks around windows, doors, and penetrations.

Modernize heating, cooling, and ventilation systems:

  • Install high-efficiency HVAC equipment sized appropriately for your space.
  • Consider heat pumps or other advanced technologies where appropriate.
  • Implement smart thermostats and zoning systems for better control.

Enhance water efficiency:

  • Install low-flow fixtures and water-saving appliances.
  • Consider greywater systems or rainwater harvesting for non-potable uses.

Upgrade to energy-efficient lighting and appliances:

  • Replace all lighting with LED options.
  • Choose Energy Star certified appliances.
  • Implement smart power strips to reduce standby power consumption.

Explore renewable energy options:

  • Assess the feasibility of solar panels, small wind turbines, or geothermal systems.
  • Consider future-proofing by making your home "solar-ready" even if not installing immediately.

Implement smart home technologies:

  • Install a home energy management system to monitor and control energy use.
  • Consider automated systems for lighting, HVAC, and other major energy consumers.

Plan for long-term maintenance and upgrades:

  • Create a maintenance schedule for all new systems and upgrades.
  • Set aside funds for future upgrades as technologies improve.

Educate household members:

  • Ensure all residents understand how to use and maintain new systems effectively.
  • Develop energy-saving habits to maximize the benefits of your upgrades.

Monitor and adjust:

  • Track energy consumption post-renovation to ensure goals are being met.
  • Be prepared to make adjustments based on real-world performance.




Conclusion

Incorporating energy-efficient design into your home renovation is not just a trend; it's a smart investment in your home's future and our planet. At Charmtones, we're dedicated to helping you achieve your renovation goals while prioritizing sustainability and efficiency.

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