SUSTAINABILITY

WARM AND ENERGY EFFICIENT

THESE CHARACTERISTICS AND „A“ ENERGY PERFORMANCE CLASS IS ENSURED BY THE FOLLOWING SOLUTIONS:
Orientation
Smart on-site home orientation enables an efficient use of passive solar energy.
Airtightness
Highly insulated and airtight building envelope keeps the heat indoors during the cold season.
Heat
Especially efficient geothermal heat pump with a coefficient of performance (COP) of 4.8 preserves the environment and ensures low heating costs.
Envelope
Cleverly designed home envelope components, minimising thermal bridging and ensuring a high level of airtightness.
Ventilation
Heat recovery ventilation system with 95% efficiency ensures low heat losses.

HEALTHY AND COMFORTABLE INDOOR ENVIRONMENT

TO CREATE A HEALTHY AND COMFORTABLE INDOOR ENVIRONMENT THE FOLLOWING APPROACHES WERE INTEGRATED
Ventilation
Controlled ventilation system replaces the stale room air every two hours, removing excess moisture and thus preventing mould formation, whereas a supply fan filter is reliably cleaning fresh air from a variety of particles such as dust or pollen. This ensures good air quality and healthy indoor environment throughout the day and night.
Lighting
Accurately planned and calculated artificial lighting ensures optimal amount of light in different rooms: the kitchen and living room require about 400 lux of illumination, bedroom – 100 lx.
Airtightness
Airtight envelope keeps home microclimate stable, preventing drafts, temperature fluctuations or cold corners and protects not only against cold in winter, but also against heat in summer.
Layout
Thoughtful interior space design lets effectively arrange the rooms making convenient access from one room to another and achieving optimal functionality of the building zones.
Windows
Specially designed windows allow plenty of natural light to enter a room and expose to ample views of the outside, without letting too much of the energy pass through the windows.
Acoustics
Thick layer of mineral wool in a stiff timber frame structure delivers excellent noise reduction and exceptional acoustic comfort.
Heating
Underfloor radiant heating distributes heat evenly throughout the room. As a result vertical distribution of temperatures, when warmest is at floor-level and coolest at ceiling-level, provides practically ideal thermal comfort for human body.

SELECTION OF MATERIALS AND THEIR IMPACT

VESTA HOUSE CONSTRUCTION AND FINISHING MATERIALS WERE SELECTED AND USED ACCORDING TO THE FOLLOWING ENVIRONMENTAL STRATEGIES:
Harmless to human
All the materials have EU and other environmental certificates and declarations, confirming that it is harmless to human and environment (for example: mineral wool insulation and OSB without formaldehyde resins, decorative plaster and paint without volatile organic compounds (VOC’s)).
Minimal environmental impact
Selected materials and solutions have a minimal impact on the environment throughout their whole life cycle. Environmental product characteristics of different materials were compared by examining their environmental product declarations (EPD), which main criteria are: environmental impact (global warming, acidification of land and water, etc.), resource use (use of primary energy, fresh water, non-renewable raw materials, etc.), waste disposal (hazardous, non-hazardous and radioactive waste) and output flows (reuse, recycling).
Renewable or recycled materials
Mineral wool insulation with more than 80% recycled glass content, FSC certified ecologic wood wool, 100% recyclable steel sheets, FSC-certified structural timber.
Local and responsible sourcing
For timber we use Lithuanian forests grown wood with FSC (Chain of Custody) responsible sourcing certificate. This certificate proves that trees in these forests are replanted and the whole supply chain is responsible. Wooden windows installed in VESTA HOUSE are also made in Lithuania.
Durability and longevity
Only durable and long lasting materials are used: low-maintenance larch and slate tile cladding, high quality dried and calibrated structural timber, high-performing timber I-beams for roof construction, non-aging and stable mineral wool, lightweight and weather-proof steel roofing, strong and secure OSB vapour barrier, adding constructive rigidity and acting equally in both positive and negative pressure case.
Possibility to reuse and recycle
To facilitate VESTA HOUSE recyclability and reuse of the materials at its end-life, building elements are connected using dry processes, i.e. using fasteners (nails, screws, rods, plates). During major renovations or demolition stage it allows to duly separate different building materials, so that they can be recycled or re-used.
Reducing demand for materials
We place a strong emphasis on techniques lowering the demand and input for new materials and reducing the waste. For example, timber frame structure allows the insulation layer to merge with load bearing elements, thus decreasing the demand for materials and reducing wall thickness, which increases usable area of the house. Efficient I-beams are used for roof structure, which can withstand higher loads than solid wood at a lower weight and the amount of material, while yielding higher energy efficiency. Lightweight timber-frame structure significantly reduces the amount of groundwork and materials necessary to lay the foundation. Major part of VESTA HOUSE is produced at the factory, which virtually eliminates waste generation.
Pollution and waste
We seek that VESTA HOUSE and its construction would have a minimum impact on natural ecosystems. For building we use lightweight structural materials, which are assembled at the factory. This reduces the pollution from material transportation. There are no fossil fuel boilers or other combustion devices, which emit CO2, NOx and other environmentally harmful substances. Since major home building works take place in a factory, waste at the building site is reduced by 40%. Factory and on-site construction waste is recycled, thus less than 2% of building materials is disposed to landfills. Moreover, VESTA HOUSE architectural style does not cause any visual pollution as it is contextual in the nature and architectural landscape, which is dominated by low-rise houses and vegetation.

INTEGRATED PROJECT DEVELOPMENT

VESTA HOUSE IS CREATED USING SUSTAINABLE DEVELOPMENT PRINCIPLES:
Integrated design
Designing VESTA HOUSE we use an integrated approach. This means that already the conceptual phase involves not only an architect, but also engineers, construction professionals and licensed sustainable development consultants. This allows to perform necessary calculations and analyses, to make the most effective and financially rational decisions, to avoid mistakes. VESTA HOUSE are probably the only typical homes in Lithuania that have designed and installed all engineering systems: heating, cooling, ventilation, hot water heating, lighting, and others. They are thoroughly and responsibly selected for every home project individually, taking into account the size of the house as well as analysing and calculating the efficiency and payback period of alternative systems.
Integrated Project Delivery
We manage the entire process - from design to construction, therefore for joint purpose we bring together all the specialists involved in the project (architects, designers, analysts, engineers, quantity surveyors, builders), thus saving time and money. Only when all building professionals act as a team it is possible to achieve the best result within the budget and deadline.