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We know how to turn straw into a home

 Genius lies in simplicity. This expression fits perfectly thinking about straw houses. Straw house is simple. It is warm. Alive. Breathing. Healthy. And cheap to maintain. Therefore, it is just brilliant.
 It’s a paradox that the straw houses were created and later destroyed by the inventions of mankind. These houses were started to be built in the United States at the end of the nineteenth century when the first straw baling machines were created, but around the year 1940, the advancing building and chemistry industry forced to pay attention to the other building materials. Fortunately, not everyone forgot what our ancestors created by using abundant gifts from nature and comprehend the fact that modern construction materials often have nothing to do with ecology. Unlike the three main components of straw house: straw, wood and clay those are just a collection of chemical formulas. Intelligence lies not in technology, but in humans themselves. A great evidence of intelligence is to learn from history - to remember what once has been created. That is why straw houses are coming back. Intelligent people, who know what ecology and a healthy lifestyle mean, who are interested in new technologies, who plan modern, healthy and comfortable life, who care about what environment their children will grow up in, need such houses. Be the ones!
 Inspired by the ecological, economical and smart house ideas we started to develop a manufacturing technology of straw panels. During the process, we gained a lot of knowledge in this area and realized that we are fully ready to offer you solutions guaranteeing a healthy life in a healthy house.
 “Modulina” specializes in the production of straw panels used for walls, intermediate floors and roofs. Wooden I-beams or our own specially designed timber frames are used for the panels. In order to achieve a high thermal and acoustic properties, great resistance to fire and other requirements for reliable construction, straw is compressed to the desired density by special mechanical equipment.

We are constantly looking for partners: architectural firms, construction companies, resellers, associations, local initiatives and researchers to promote and materialize the idea that we deeply believe will transform the building sector in the near future and significantly contribute to saving the planet. If you would like to be our local partners in your home country.

Straw house closer

Heat

 Straw walls have good thermal properties. A standard straw panel of 45 cm in width together with an interior clay finish and a ventilated facade or an exterior clay plaster has the thermal transmittance of 0,13 W/m²K. It guarantees low heating costs even in the coldest periods of winter. At the same time, the well-insulated straw walls will allow you to feel comfortably cool during the hot summer days.
Independent research confirmed that the layer of compressed straw by our technology has the thermal conductivity λ=0,057 W/m2K. One of the advantages of this technology is that it allows a homogenous straw distribution within the timber frame. It guarantees uniform thermal properties and prevents thermal bridging, which because of imperfections of human labour occurs not that rarely even in the most popular thermal insulation solution - mineral wool. 

Ecology

 Straw is a waste material coming from crop agriculture and has a huge potential in the building sector. In the face of constantly darkening clouds of the global climate change, straw houses fit perfectly as a solution for reducing CO2 concentration in the atmosphere. While burning straw and wood or leaving it for the natural decomposition emits carbon dioxide, using those as buildings materials “locks” CO2 within the structures. Another important aspect is that wood, clay and straw naturally exists in nature and doesn’t need to be produced. For example, the embodied energy of straw is 4 kW/m3, whereas a conventional brick stands for 1462 kW/m3. In order to produce building materials like bricks, cement or mineral wool a great amount of energy is needed. It doesn’t come from anywhere and is usually gained from burning fossil fuels, which again adds up for the concentration of CO2 in the atmosphere.

Microclimate

 A combination of straw, wood and clay allows creating an indoor humidity level of 40-50% without any additional mechanical equipment. It is a perfect range for human beings to live in. Unlike usage of air and wind barriers in conventional building practises in order to keep insulation completely dry, the common straw and clay building techniques allow moisture to move freely within the external structure. Clay plaster used for interior finishes has an ability to absorb excess moisture and to release it back when the humidity level indoors drops down. If the internal humidity level stays high for a prolonged amount of time the excess humidity will be transferred through the straw wall to the outside ensuring a passive humidity control. Also, the clay plaster works as a thermal buffer reducing the fast temperature changes indoors. Rooms will heat up and cool down slower. Therefore, during hot days, indoors will stay cool for long while heated up walls will slowly give back the warmth in winter. It allows usage of even a simple wood burner as the main heating source without the discomfort of greatly varying temperatures and dedicated operation. On top of that, clay acts as an anti-static finish – it avoids attracting dust. Also, it neutralizes various odours and adds a fresh feel of earth.

Sound insulation

 Experiments confirmed that our straw panels have outstanding sound insulation properties. Being a structural element it can reduce external noise levels up to 50 dB. One more advantage of the straw house - there is no need for additional sound insulation to meet the regular building requirements in this criteria.

Speed of construction

 One of the greatest advantages of building with straw panels is construction speed. For example, construction of 120 square meters house walls of straw panels takes only 1 day, the straw panel roof will be done in 1 day as well. Only a small team of 2-3 people is needed for the task. Fast construction saves money and time.

Video of construction

DESIGNED TO ENJOY LIFE, WITH LOVE AND RESPECT FOR NATURE.

PURSUE PERFECTION TOGETHER.

TECHNICAL INFORMATION

Only certified dry timber, class C24 is used for producing the timber frames of our straw panels. The standard thickness of the panels is 45 cm. The height and length are variable dimensions and can be adjusted according to the project and transportation requirements. During the production, straw is compressed to the standardised level and all the open straw surfaces are cut to be even by our own developed machinery. We can produce straw panels for walls, roofs and intermediate floors. According to the project, the thickness of the panels can vary from 30 cm to 48 cm.

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Mounting a straw panel to the foundation

 In between foundation and a straw panel, a separate base layer is formed, which will transfer the loads to the foundation. It consists of two horizontal wooden battens and XPS insulation in between. A wood fibre board is attached on top. This base is secured to the foundation with bolts and the straw panel is attached to the horizontal battens via screws.

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External layers of a straw wall

 A diffusion-open air membrane is attached to a straw panel. The membrane will protect it from rain during the construction phase and will ensure the airtightness of a building. Wood fibre boards are installed afterwards, which are plastered with clay or other mineral-based plaster. 30, 60 or 100 mm thick boards can be chosen depending on the desired thermal insulation value. For example, the addition of 60 mm wood fibre board will result in U-value of 0,11 W/m²K, which meets A++ energy performance building requirements. Without the use of the boards, this value will be 0,13 W/m²K - A+ class. A ventilated facade with any kind of cladding is also an option.

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Internal layers of a straw wall

 A base layer from brown clay is plastered including a mesh for reinforcement. Total layer thickness is 30 mm. On top of that, a fine white clay plaster mix is used for the 2-3 mm finish layer.

WE HAVE THE RIGHT TO CHOOSE. CHOOSE ECOLOGY, COMFORT AND INOVATIONS!

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Prices

To find out how much your home will cost to build out of “Modulina” produced straw panels, you need to multiply the area of the house walls by ​​1 square meter  straw panel price, which currently starts at 90 EUR / m² (without VAT). Do not include doors and windows areas into walls area.  Also we can produce straw overlays, which cost EUR 100 / m²(excluding VAT) and the straw roof constructions, which cost EUR 105 / m² (excluding VAT).
Preliminary calculation:
If you want to calculate the price of the walls and do not know the doors’ and windows area, we suggest using the preliminary price calculation methodology, i.e. external walls’ perimeter multiply by height of walls, and the resulting value multiply by one square meter of straw panel price that according to this method starts from 70 EUR / m².
Eg.: 100 m²  sized house is quadrangle, one wall length - 10 m, four walls - 10 x 4 = 40 m, wall height is 3 m, 40 m x 3 m = 120 m² wall area, and the preliminary cost of 120 m² x 70 EUR = 8 400 EUR. Prices do not include VAT. 1 m² wall price may vary depending on the complexity of the design and other technical parameters.
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"Ilanga" LLC,
Klaipeda University Business Incubator,
19th floor, 303 room
LT-92294 Klaipeda, Lithuania 
Company code: 141937650
Phone +370-698-31898
e-mail: info@modulina.lt

©2020 Sprendimas: ITgidas.lt.