Whereas all indications and recommendations supplied herein are stated to the best of our experience and knowledge, they should nevertheless be considered as indicative only and should be confirmed by exhaustive practical applications. Therefore, before using this product, we recommend in any case to perform preliminary tests with the purpose of verifying the complete suitability for the intended use. In case of uncertainties and doubts contact our technical office. This sheet supersedes any other previously released.

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Thermal and acoustic insulation - Screed

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THERMAL – ACOUSTIC INSULATION - Screed

DIATHONITE FOR SCREED

Lightened screed, premixed, breathable and thermal

Premixed screed, fiber reinforced with cork (gran. 0 -3 mm), clay, diathomaceous earth and hydraulic bind er. Natural compound ready to use for indoor and outdoo r, suitable to realize thermal and acoustic lighten ed screeds.

MIXING Mix the product in a concrete mixer adding 12-15 lt of water per bag of Diathonite for Screed used (25 kg). Mix for about 4-5 minutes. It is fundamental not to exceed mixing time. Do not mix the product by hand. The amount of water indicated on the packaging is merely indicative. It is possible to obtain more or less fluid mixture depending on the application. Never add antifrost products, cement or aggregates. APPLICATION 1. It is FUNDAMENTAL to wet the sub-strate, particularly during summer time. 2. Prepare the area creating reference bands to obtain the required thicknesses (points and reference bands must be created with Diathonite for Screed with an inter-axial distance not higher than 2 m). The screed must have a minimun thickness of 5 cm. 3. Where the screed thickness is smaller (for example where there are piping) use a reinforcement mesh (metal or fibre glass). 4. Apply the product following the traditional method for screed. Prop and smooth to obtain a perfectly even surface. 5. The maximum thickness that can be realized with one coat is 6 cm. For higher thicknesses lay the screed in two coats of equal thickness. 6. Diathonite for Screed can be applied using traditional pumps for screed.

ADVANTAGES • Insulation against cold and heat (it is the only

product that acts as cold-insulation thanks to the cork and as warmth-insulation thanks to the stone)

• Highly breathable • Fire resistant • Very fast application system (by plastering

pump). APPLICATION FIELDS Ready to use screed for indoor and outdoor. Suitable to realize thermal screed for residential buildings, public buildings, hotels, conference rooms and all those places that need to be insulated from the rooms below. YIELD 6 kg/m2 (±5%) per cm of thickness. COLOUR

Grey. PACKAGING 25 kg paper bags. Pallet: n° 50 paper bags (1250 kg).

STORAGE • If stored in dry places on pallet the storage time

is 12 months. • If stored on site, it must be protected from sun,

water, ice, at temperatures between +5°C and +35°C.

PREPARATION OF SUPPORT • Sub-strate must be completely hardened, dry and

resistant. • The surface must be thouroughly clean, well

consolidated, without debris or detaching parts. • Sub-strate temperature must be comprised

between +5°C e +35°C.

For application video, product page, safety data sheet and other information

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DIATHONITE FOR SCREED Lightened screed, premixed, breathable and thermal

Thermal and acoustic insulation - Screed DIASEN Srl - Z.I. Berbentina, 5 - 60041 Sassoferrato (AN)

Tel. +39 0732 9718 - Fax +39 0732 971899 diasen@diasen.com - www.diasen.com

Technical Data

Features Units

Yield 6,0 ± 5% per cm of thickness kg/m2

Minimum thickness 5,0 cm Aspect powder - Colour grey - Granulometry 0 - 3 mm Density 600 (±10%) kg/m3

w/c ratio 0,50 - 0,60

12 - 15 l per bag of 25kg l/kg

Mixture consistency sprayable - Application temperature +5 /+35 °C Drying time (T=20°C; R.H. 40%) 15/20 days

Storage 12 months in original

containers and dry places months

Packaging Paper bag 25 kg kg

LEED® Credit s

Standard GBC HOME

Thematic area Credit Point

Energy & Atmosphere

EAp1 - Mimimum energy performance compulsory

EAp2 - Minimum performance of the wall compulsory EAc1 - Optimize Energy Performance from 1 to 27

EAc2 - Enhanced performance of the wall 2

Materials & Resources

MRp2 - Construction Waste Management compulsory

MRc2- Construction Waste Management from 1 to 2

MRc3 – Low emission materials from 1 to 3

MRc4 – Recycled Content from 1 to 2

MRc5 – Materials extracted, processed and produced in short distance (regional materials)

from 1 to 2

MRc6 – Materials derived from renewable sources 2

Indoor Environmental Quality QIc3 – Humidity control 1

QIc11 – Acoustic 2

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DIATHONITE FOR SCREED Lightened screed, premixed, breathable and thermal

Thermal and acoustic insulation - Screed DIASEN Srl - Z.I. Berbentina, 5 - 60041 Sassoferrato (AN)

Tel. +39 0732 9718 - Fax +39 0732 971899 diasen@diasen.com - www.diasen.com

Standard LEED Ital y for New Construction & Major Renovation, v. 2009

Thematic area Credit Point

Energy & Atmosphere EAp2 - Mimimum energy performance compulsory

EAc1 – Optimize Energy Performance from 1 to 19

Materials & Resources

MRc2 - Construction Waste Management from 1 to 2

MRc4 – Recycled Content from 1 to 2

MRc5 – Materials extracted, processed and produced in short distance (regional materials)

from 1 to 2

MRc6 – Rapidly renewable materials 1 Indoor Environmental Quality QIc3.2 - Management Plan IAQ - Before Occupancy 1

QIc4.1 - Low Emitting Materials – Adhesives, primers, sealants, cementiciuos and wooden products

1

Final performances

Units Regulations Result

Thermal conductivity (λ) 0,060 W/mK UNI EN 12667 -

Footstep insulation index (Diathonite Screed 5,0 cm + Diafon)

L’nw = 58 dB UNI EN ISO 140-7 DPCM 05.12.1997

-

Resistance to compression > 5,0 N/mm² UNI EN 13813 C5

Tensile resistance > 2,0 N/mm² UNI EN 13813 F2

Resistance to water steam diffusion (µ) 4 - UNI EN ISO

12572 Highly

breathable

Fire resistance (Euroclass) A1 - EN ISO 1716 EN ISO 1182 EN 13501-1

-

Bulk density of dry mortar 800 (±10%) kg/m3 - -

LEED® Credi ts Standard LEED for New Construction & Major Renovation,

LEED for Schools, LEED for Core & Shell, v. 2009

Area tematica Credito Punteggio

Energy & Atmosphere EAp2 - Mimimum energy performance obbligatorio

EAc1 – Optimize Energy Performance da 1 a 19

Materials & Resources

MRc2- Construction Waste Management da 1 a 2

MRc4 – Recycled Content da 1 a 2 MRc5 – Regional Materials da 1 a 2 MRc6 - Rapidly Renewable Materials 1

Indoor Environmental Quality

IEQp3 - Minimal Acoustical Performance* obbligatorio

IEQc3.2 - Construction Indoor Air Quality Management Plan — Before Occupancy

1

IEQc4.1 - Low Emitting Materials - Adhesives and Sealant

1

IEQc9 - Enhanced Acoustical Performance* 1 IEQc11 - Mold Prevention* 1

* credits valid only for LEED for Schools, LEED for Core & Shell, v. 2009 standard.

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DIATHONITE FOR SCREED Lightened screed, premixed, breathable and thermal

Thermal and acoustic insulation - Screed DIASEN Srl - Z.I. Berbentina, 5 - 60041 Sassoferrato (AN)

Tel. +39 0732 9718 - Fax +39 0732 971899 diasen@diasen.com - www.diasen.com

APPLICATION in combination with sound proofing mat Diafon 1. Lay Diafon mats over the surface to cover with the

synthetic film facing upwards. 2. Remove the adhesive and seal the mats overlapping

them of 40/50 mm to realize a continuous soundproofing layer. The surface must be completely covered.

3. Diafon mat must be skirted over the wall to avoid the formation of acoustic bridges between the floor and the structure of the building. The height of the skirting must be higher than the finished floor, the skirting angle must 90°.

4. Apply Diathonite for Screed as stated in paragraph “Application”, with a minimum thickness of 5 cm, using in case an electro-welded mesh.

5. Lay the floor (ceramic, marble or parquet flooring) using a suitable glue.

6. Cut Diafon over the paved surface. 7. Lay the skirting board without putting it into contact

with the floor.

DRYING TIME At 20°C and with relative humidity level of 40%, the product dries 15/20 days. • Drying time is influenced by humidity level and

temperature and may significantly change. • Protect Diathonite for Screed while curing from ice,

direct sun light and wind to avoid successive cracks. • With high temperature, direct sunlight or strong wind it

is necessary to wet the plaster even 2/3 times a day for the next 2/3 days after the application.

• Once the application has been completed, to avoid damages before the application of the screed, the screed must not be subjected to pedestrian traffic or to heavy loads.

• It can be directly paved with ceramic, terracottas, gres, clincker or floating parquet.

• The screed can be coated even with glued parquet after at least 28 days of curing. Before lay the parquet, levigate the surface with a sanding disks machine and apply a consolidating antidust primer (such as WATstop). WATstop must be applied with a coverage of 1,0 kg/m2 to floor in contact with the ground, with a coverage of 0,6 kg/m2 to floor not in contact with the ground. • Diathonite for Screed can be coated with liquid waterproofin (such as Acriflex Fybro, Acriflex Winter) or with Diasen coatings (Floorgum Paint, Oriplast Reflex, Oriplast, Epokoat, Polikoat) without using a primer. • Diathonite for Screed is not suitable to place underfloor heating system.

SUGGESTIONS • Temperature must be between +5°C and +35°C. • During summer season, apply the product during the cooler hours of the day, away from sun. • If applied outdoor, do not apply with imminent threat

of rainwater or ice, in condition of strong fog or with relative humidity level higher than 70%.

• Application time is about 20-30 minutes, but it may change depending on temperature and ventilation.

• Outside it is very important to create suitable dilation joints at regular intervals (i.e. 4 x 4 = 16 m2; 4 x 5 = 20 m2; 5 x 5 = 25 m2). Joints must be properly realized to avoid cracks and lesions on the final coat.

• If Diathonite for Screed is laid over wide surfaces (higher than 60m2) it is necessary to realize joints also indoor.

CLEANING Wash tools with water before product hardening. SAFETY For the handling, see product safety data sheet.