Green Roof and Roof Garden

Advantages of the Green Roof, a roof garden

Beyond the obvious advantages of beauty, creative engagement and confort that plants offer to humans, you will be surprised by the advantages and benefits of a green roof. Read carefully the following paragraphs and you will agree with us.

• Reduce the indoor temperature of the building to 10 ° C. A roof with plants is warmed and frozen much slower than a no-plant roof.
• Reduce the cost of heating and cooling the building up to 50%. Air conditioning or heating appliances work more efficiently while reducing energy costs.
• In the green roof the surface temperature of the roof is less than 35 ° C !!! The temperature on the surface of a conventional roof can reach 80 ° C! Plants in a roof absorb the heat for the needs of their metabolism.
• In a very short time, you will pay off your investment! 
• It reduces external noise by at least 10 Decibel more than a conventional insulation external noise. The multifarious surface of the plants and the trapped on the substrate and the plants, air, has sound-proofing effect. Ideal solution for buildings close to powerful noise sources (highways, factories, airports etc).
• The green roof filters and exploits rainwater. A planted roof retains and filters 75% of rainwater, providing flood protection in the city, and also protecting water from pollution.
• Reducing electromagnetic radiation by 99.4%. A research conducted in Munich, in the city of Kassel, showed that: reduced  up to 99.4% the penetration of electromagnetic radiation and microwaves in a building whose roof was planted!
• Fire protection. A research conducted in Berlin for the resistance of a green roof to the fire was, proved that: Prevent the fire from its spreading, more than gravel rooftops. This is due to water retention of succulents which used for planting. (Kohler, 2004).

In the "movie shelter" at UFA Studios in Babelsberg, Germany, used in the 1930s to store major works (such as Marlene Dydrich's films), for fire safety, they used thick walls to separate the rooms, a planted roof for secure fire protection . (Kohler, 2004).

 

Significant cost savings in building maintenance

The green protects the surface of the roof and the sealing layer from:

• Rain, snow, hail
• Radiation UV
• Mechanical stresses
• Doubles the life time of the roof and sealing layer from 30 years to over 60 years
• Reduces the cost of sealing and maintenance of concrete

1. Trust Andreoy Insulation SA as well as thousands of others. It applies:

• Quality Control System ISO 9001: 2015 & Environmental Management System ISO 14001: 2015
• Occupational Health and Safety Management System ISO 45001:2018

1. All the construction crews of Andreoy Insulation SA consist of:

• Civil Engineers
• Certified technicians on Insulations / Insulators by ESYD in accordance with the International Standard ISO / IEC 170244
• Specialized and certified insulators according to DIN CERTCO

1. Andreoy Insulation SA is a member of:

• Pan-Hellenic Association of Insulation Companies  (PESM)
• European Federation of Associations of Insulation Contractors (FESI)
• Panhellenic Association of Inflated Polystyrene - EPS HELLAS
• Association of Greek Manufacturers of Aluminum and Related Products (SEKA)
• Hellenic Institute of Fire Protection of Constructions  (ΕLIPYKA)

Ask our offer and prices for roof garden

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1. Fill in the  contact form
2. Call us at the following telephone numbers: 210 62 55 780, 22 210 79 950
3. Come to our technical departments in Athens and Chalkida
4. Visit our Facebook and Twitter pages and send a message

Do you have a house, a block of flats, a commercial building or industrial building? Contact us and tell us your problem that you have with your roof!

A civil engineer or a specialized technician will explain you the construction method, the materials that will be used, and the price per m², that will cost any insulation and waterproofing solution for your roof.

Andreoy Insulation SA is available in Athens, Attica, Chalkida, Evia, Thiva and Viotia.

 

Construction method of Roof garden, green roof

Surface cleaning

Cleaning of the surface with special machines and local surface repairs (wherever required).

Waterproofing with Flex thermo

The final waterproofing of the system is made by installing a flexible FLEXTHERMO white two-component sealer that creates an elastic waterproofing membrane and offers great adhesion. It is recommended to reinforce the first layer with 5mm, 160gr / m2 A-FIBERGLASS MESH hard-wearing glass mesh to prevent cracks from the stresses that transferred from the substrate.

Installation of thermal insulation

Installation of Thermo Energy Plus Graphite thermal Insulating Plates. If required, the thermal insulating plates are glued with Athermo ,high strength mortar and adhesion & jointing of joint joints with the same material (if applicable). The thickness of the thermal insulating material needed is assessed by our certified insulators and is arranged upon consultation with the owner.

Creation of slopes and second layer of thermal insulation

Laying Τherbobeto® heat-insulating lightweight concrete to create 2% slopes. If required, two coats are made. After the laying with Terbobeto®, the surface is smooth with the use of scraper.

Primer adhesion 

Application of asphalt varnish with high adhesion

First waterproofing

Coating of the first THERMODIEN NERO membrane 4kg -10^οC  which is perpendicular to the slopes coated widthwise 15cm & along 15cm between the rolls, while the joints widthwise do not coincide.

Second waterproofing

Then follows the hot gluing of the second bitumen membrane THERMODIEN ENERGY PLUS SBS (ΕΝ 13707) with a non-woven polyester weight carrier 6Kg per m², -20^οC & weight of polyester cloth180gr/m² .The bonding of the membranes is perpendicular to the slopes with a width of 10cm & 15cm between the rolls, the widthwise joints do not coincide.

Protection and separation layer

Placement of a geotextile  with weight 200 gr, is used to protect the sealing layer and to separate it from the rooftop

Drainage of the system

It is necessary to drain the water from the green roof. Gravel, drainage membrane or other materials specified by the research may be used.

Ventilation system

Installation of special type ventilators from which water vapor is discharged at about 30-60 m² & at the highest points of insulation.

Special system pieces

Special membrane pieces are installed to further strengthen the system seal. The special pieces are placed on the perimeter parapets.

Mechanical fastening of the membrane

Mechanically fastening of the membrane with special blade pieces and sealing with polyurethane mastic.

Gutter protection

Reinforcement in the gutter nozzles with special membrane placement and ROOF ENERGY COOL coating as well as polyurethane mastic. At the end of the work, protective grills are placed in all the gutters so that they do not block from tree leaves and other objects.

Creation of green roof or roof garden

After completing the roof insulation and sealing system, you can create your own beautiful garden with a selection of flowers, low trees, corridors, etc. in cooperation with your agronomist.

We use only certified insulating materials and our own certified & specialized insulation crews.