Zero Energy House manufacturing company https://sinergomajas.lv/en - - PowerPoint PPT Presentation

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Zero Energy House manufacturing company

INCREASED ENERGY EFFICIANCY

SINERGO houses are built according to the Passive House construction standards. These are houses with very high energy efficiency, in which a comfortable indoor climate can be maintained without active heating or cooling systems.

ZERO ENERGY HOUSE

They are regular grid-tied homes that are so air- tight, well insulated, and energy efficient that they produce as much renewable energy as they consume over the course of a year, leaving the

• ccupants with a net zero energy bill, and a

carbon-free home.

NO RISK OF FREAZING

A passive house will never freeze in winter even if you turn off the electricity for several weeks. The indoor temperature will not drop below 10° C even in the coldest winter months.

EFFECTIVE VENTILATION

Pleasant and fresh air inside the house is provided by an automatic ventilation system which keeps the air pleasantly warm, fresh and clean from dust.

ECOLOGICAL CONSTRUCTION

SINERGO houses are designed to use as much natural material as possible in the construction

• process. The house is built from high-quality

wood and is heat-insulated with natural cellulose and wood fibre boards.

WELL-BEING AND COMFORT

Exceptional thermal insulation and excellent building air-tightness protects a house from the risk of accumulation of moisture, mold and condensation.

Live in a house built according to 2020 construction standards and almost without any heating costs!

Usually a house is equipped with a powerful heating system and

• ften with air conditioners to maintain a comfortable temperature all

year round. Due to rising energy costs, the operation of such a house becomes increasingly expensive.

Did you know that you can do without active home heating even in the coldest winter months?

• Dr. Volfgang Feist

The first Passive house in the world

In 1988 the German scientists Bo Adamson and Dr. Wolfgang Feist developed the passive house concept and built the world’s first passive house in 1991 in Darmstadt, Germany.

What is Passive house?

• 1. Sufficient thermal insulation

This can be compared with a high-quality jacket in winter, which keeps you warm without a heater.

• 2. Fully hermetic

A passive house does not have even the slightest gaps through which warm air could escape.

• 3. Without thermal bridges

A thermal bridge is a heat leak through which heat escapes the building via construction elements.

• 4. Triple pane insulated glazing

They serve as large solar collectors that help to heat the house in winter.

• 5. Correct location of the building

The house should be located so that the sun heats it through the large windows in winter, while in summer a shadow is formed under a special window overhang to prevent the house from heating up

• 6. Air ventilation with recovery

Ventilation ensures that the air in the house is always fresh and clean all year round, while preventing the escape of heat from the building.

Šie zinātnieki izstrādāja Pasīvās mājas būvniecības standartu un noteica sekojošus kritērijus: THE RESULT: a house in which a comfortable indoor climate can be maintained without active heating or cooling systems.

Where does the heat come from then?

A passive house requires approximately 90% less heating energy than a standard house. The remaining 10% comes from: body heat of the house inhabitants; solar radiation through windows; heat released by household appliances, lighting, and TV set; a ventilation system that keeps the air evenly warm; a decorative wood-burning fireplace or small electric radiators. The heating system: a passive house requires no “active” heating since it maintains the heat using solar radiation, as well as heat emitted by domestic equipment and the house inhabitants – the so-called “passive” energy. Thanks to the excellent heat insulation, triple pane windows and high-efficiency ventilation unit with heat recovery, a passive house cools down very slowly, like a vacuum flask, and only during the short days of winter requires a little auxiliary heat, such as by using a fireplace or small electric radiator.

What is “passive” in a Passive House?

Excellent thermal insulation

Thick walls which ensure that heat is retained indoors are one of the primary construction elements of any passive or high energy-efficiency building. To optimize the use of resources and to reduce the volume of the walls, we use a wood-framed panel system that provides maximum strength and structural efficiency with minimal material consumption. Cellulose heat insulation has been filled between the I-beam struts of the frame, and on the outside the wall has been additionally insulated using ecological wood fibre boards, thus obtaining an unparalleled thermal insulation layer with a 57-cm thickness and the heat transfer coefficient U=0.07 W/(m2K). In addition to plaster, OSB (wood fibre) boards are used in the walls. Wall panels are designed to avoid the so-called thermal bridges, while the assembly technology allows for

• btaining a high-quality structure with very tight joints.

Fully hermetic

The passive house envelope needs to be especially well sealed because otherwise the outdoor air will be

• heated. The warm indoor air always tries to escape from the house through gaps, which can cause

condensation and mould build-up in unsealed areas. Air flow can also cause draughts and cold air zones near the floor. Heat insulation materials are not usually airtight, so this envelope needs to be designed and built separately. In wooden structures, composite wooden boards are normally used, with joints sealed using tape. It is essential that the airtight envelope be seamless and not accidentally damaged by other construction workers (e.g. electricians). All utility outlets (even the power sockets) that cross the envelope must be sealed using special materials. The passive house heat insulation and an airtight layer must be checked using the special blower door method and an infrared camera.

Without thermal bridges

Heat can escape the house not only through cracks in the building, but also through materials with high thermal conductivity. A thermal bridge can be formed, for example, by improperly constructing a balcony on the second floor, the roof, or external and internal corners of the building wall. A passive house may not contain thermal bridges because they reduce the indoor surface temperature, cause a risk of moisture damage occurring and significantly increase the heat loss. Engineers have different methods to prevent thermal bridging. The main rules are: do not breach the thermal insulation envelope, choose a rational shape for the building and build the windows into the heat insulation layer.

Window installation

Correctly placed airtight triple-glazed windows

One of the basic principles of passive construction is correct orientation of the house and its glazed areas to make use of the most of solar energy. Passive solar energy through the glazing can offset 40% of the heat loss

• f the building, so the windows (and also glazed front doors) are some of the core elements of the passive
• house. The best commercially available windows should be chosen for a passive house, usually with very high-

quality triple glazing. The panes need to be additionally sealed and set in specially designed frames without thermal bridges. Such windows will let more heat in than out of the room; therefore, in summer the house should be protected against overheating using solar protectors, shutters, roof overhangs or other solutions. The windows of a passive house must not be equipped with the additional ventilation systems sometimes

• ffered by window manufacturers. Airtight windows should not be a cause for concern because air quality is

ensured by the innovative mechanical ventilation system.

Efficient air ventilation

A ventilation system is recommended in every home, but in a passive house it is

• essential. The air ventilation device allows the house to be provided with fresh air

without opening the windows. The passive house is airtight and air exchange in it takes place almost exclusively through the ventilation system. By using the air heat exchanger built into the ventilation system, it is possible to recover up to 93% of the heat from the air that is released from the building. A small electric heater is installed in the ventilation system that heats up the air slightly when required to ensure a steady air temperature of +20° C. In summer the system

• perates in reverse and cools the incoming fresh air to ensure a comfortable

microclimate indoors throughout the year. The air in the room needs not only to be warm, but also clean. For good air quality, one person requires at least 30 cubic metres of fresh air per hour. If there are 5 people living in the house, the ventilation equipment will supply 150 cubic metres of fresh air per hour.

Small auxiliary heating system

A passive house requires no “active” heating, since it maintains the heat using solar radiation, as well as heat emitted by domestic equipment and the house inhabitants – the so-called “passive” energy. In addition, the ventilation system warms the incoming fresh air to a temperature of +20° C. Despite this, the Latvian winter weather requires a small heating system. To avoid having to light the fireplace, we

• ffer to install low-powered (375 W) decorative electric heaters in each of the rooms.

As alternative source of heating we recommend air-to-air heatpump which is 4x more economical compared to electrical heating.

Hybrid heater Mitsubishi HERO heatpump

Solar batteries

The principle of the passive house is to use freely available renewable energy sources, such as solar energy, as much as possible. The principle of operation for solar batteries is simple – the obtained energy is used to run the domestic equipment necessary at the given moment, including the ventilation system, water heating, and partially also for heating. If the electrical power consumption of the moment is greater than solar power produced, then extra electricity is purchased from the grid, but if the solar power produced is higher, then the excess energy is fed into the grid. The use of solar cells can produce as much electrical power as is required to compensate the average yearly electrical house heating costs.

Passive House requirements

For a building to be considered a Passive House, it must meet the following criteria:

• The Space Heating Energy Demand is not to exceed 15 kWh per square meter
• f net living space (treated floor area) per year or 10 W per square meter

peak demand.

• The Primary Energy Demand, the total energy to be used for all domestic

applications (heating, hot water and domestic electricity) must not exceed 120 kWh per square meter of treated floor area per year.

• In terms of Airtightness, a maximum of 0.6 air changes per hour at 50 Pascals

pressure, as verified with an onsite pressure test (in both pressurized and depressurized states).

• Thermal comfort must be met for all living areas during winter as well as in

summer, with not more than 10 % of the hours in a given year over 25 °C. Passive House buildings are planned, optimised and verified with the Passive House Planning Package (PHPP). All of the above criteria are achieved through intelligent design and implementation of the 5 Passive House principles: thermal bridge free design, superior windows, ventilation with heat recovery, quality insulation and airtight construction. For more information visit: www.passiv.de

SINERGO e75/s75 typical project

Living area – 77m2 Total area – 112m2 Living area – 77m2 Total area – 173m2 (including garage)

e75/s75 interior

s75 floor plan / e75 (same just without garage)

SINERGO e100/s100 typical project

Living area – 101m2 Total area – 137m2 Living area – 101m2 Total area – 173m2 (including garage)

e100/s100 interior

s100 floor plan / e100 (same just without garage)

SINERGO e130/s130 typical project

Living area – 128m2 Total area – 176m2 Living area – 128m2 Total area – 248m2 (including garage and terrace)

e130/s130 interior

s130 floor plan / e130 (same just without garage and terrace)

Design and construction of passive houses

The principal activity of SINERGO is the design and manufacture of Zero energy houses. Our houses stand out by being built according to the Passive House construction principles, which means the highest construction quality, minimal heating, fresh air indoors, precision of building elements to a millimetre, modern and individual design, as well as environmentally friendly materials and technologies.

Delivery and assembly

Click on the link above to watch the VIDEOs Day 1 – assembly of insulated floor, wall and roof panels. Day 2 – garage/terrace installation, windows and doors are installed. Day 3 – all construction elements fixed, building envelope properly sealed for maximum air tightness. Day 4 – internal walls installed. House is ready for facade and interior works!

95% of the building constructions are prepared into elements and panels in our factory and delivered to the site by delivery trucks. We can install fully insulated house frame with windows and doors and prove the air-tightness

• f the building by performing the

Blower Door test in just 5 working days! Our average Blower Door test result is n50 = 0.25 h-1, which is 2x better than Passive House requirement!