Systems

ITS™

(Insulated Timber System)

Insulated Logs

The ITS™ system consists of self-supporting panels that make up the structural and cladding elements of the house. The panels, made of glued wood veneers and insulated with cork in their core, offer a high level of thermal resistance and allow for very rapid assembly on site.

ITS
ITS™ is born from the conjunction of the log house constructive technique with the Timber Frame system. In addition to reconstituting the log with glued laminated wood, adding cork in its core to increase its thermal performance, the pieces are joined together to form self-supporting structural panels, thus giving the constructive system unmatched benefits, both in terms of insulation and for its fast construction (2 days for walls and roof assembly).
ITS™ houses, mounted on both sides of the finished walls, can be delivered fully equipped, including exterior carpentry, as well as the channels for built-in electrical installation, offering a rapid execution time without setting or drying times, characteristic of the construction with wet conglomerates (traditional construction).
The reduced thickness of its walls optimizes the living space (+/- 8% more than in bricks), and increases the comfort of its occupants, thanks to the naturally perspirable materials that regulate the interior humidity, with low thermal inertia and the absence of thermal bridges (+/- 30% of heat loss in traditional construction). Suitable for any type of site (landlocked lot, narrow, unstable, steeply sloped, …), the ITS™ construction is up to 10 times lighter than a concrete construction and 20 times lighter than steel, requiring much less substantial and less expensive foundations and is suitable for low lift fields, or in poorly stabilized areas.
The solution to a dry, clean, fast and energy-efficient construction.
An ITS™ house is usually built on a concrete slab, on the ground or on a crawl space, allowing the construction to rise 20 cm above ground level. A sealing strip at the base prevents the rise of moisture in the walls through capillarity.
Structure

ITS™ house consists of NATURLAM® wood panels formed from joined glued laminated wood logs, insulated with cork at their core. The individual pieces of wood are stacked through a longitudinal fitting system, forming structural walls which are intersected at the angles with vertical wall studs to consolidate and to brace the building.

Watertightness

Each piece of wood is treated at the factory according to biological risks and exposure to weather. Likewise, the fittings are designed to prevent the entry and stagnation of rainwater.

Airtightness and internal water vapour tightness

In each enclosure area, a sealing strip ensures tightness between each piece of the construction. Wood and cork, due to their insulating characteristics, prevent the creation of dew points that are detrimental to the building’s durability. The water vapour inside the building is regulated thanks to the hygroscopic properties of wood and cork.

Bracing

Insulation

The ITS™ house is highly insulated. Its coefficient of thermal transmittance is U = 0.29 W / m2K, according to EN 12664: 2001. On the other hand, noise reduction is 33dB, according to ISO 717-1: 2013.

External cladding

NATURLAM® panels are finished in the factory leaving the wood visible on the outside, with the application of a perspirant outer lacquer.

Internal lining

As with the outer coating, the NATURLAM® wood panels are generally visible in the interior and are coated with a perspirant varnish (clear or white). Other coating materials, such as plaster or stone, may be used as finishings.

External wall - 180mm section:
Exterior/interior wall - 90mm section:
Axonometry outer wall - 180mm section:

The evaluation of the ITS™ kit according to the Basic Work Requirements (BWR) was carried out in accordance with EAD 340308-00-0203. The characteristics of the components must correspond to the respective values established in the technical documentation of ETA 18/0984 of 08/07/2022, verified by Itecons.

The ITS™ system is made up of differentiated elements with the following characteristics:

Designation

Applying

Performance

Result

Standard

NATURLAM W180 (Monolam or Bilam) 

External walls

Air permeability (Bilam)

Façade = class 4

Corner = class 3

EN 1026



Watertightness (Bilam)

Façade = class E1500

Corner = class E1200

EN 12208



Weighted apparent noise

reduction index (Monolam)

Rw = 33 dB

EN ISO 10140-1, 2, 3 e 4, EN ISO 717-1 e 2



Thermal resistance and thermal transmittance

RT = 3.03 m2K/W

EN ISO 6946 
EN ISO 10211



Shear strength in the plane direction against horizontal loads (Bilam)

Rigidity = 2490 N/mm
Resistance = 12.45 kN

EN 594



Compression strength

FC,k = 0.83 x 750 kN = 622.5 kN

EN 26891



Durability

External components = risk class 2, 3 Interior components = risk class 1

EN 335

NATURLAM W90 (ICB)

Internal walls

Weighted apparent noise

reduction index (ICB)

Rw = 26 dB

EN ISO 10140-1, 2, 3 e 4, EN ISO 717-1 e 2

NATURLAM R230 (ISOL 160)

Roof covering

Thermal resistance and thermal transmittance

Upward flow = RT = 4.62 m2K/W
Downward flow = RT = 4.69 m2K/W

EN ISO 6946
EN ISO 10211

CRIPTOLAM F210

Flooring slab

Weighted apparent noise

reduction index

Rw = 53 dB

EN ISO 10140-1, 2, 3 e 4, EN ISO 717-1 e 2



Impact sound insulation

Ln,w = 59 dB

EN ISO 10140-1, 2, 3 e 4, EN ISO 717-1 e 2



Thermal resistance and thermal transmittance

Upward flow = RT = 4.15 m2K/W
Downward flow = RT = 4.32 m2K/W

EN ISO 6946
EN ISO 10211

Fonte: Itecons

Acoustic performances

Determination of the insulation index to percussive conduction sounds CRIPTOLAM F210 - ITeCons
Determining the sound insulation index for airborne sounds CRIPTOLAM F210 - ITeCons
Determining the sound insulation index for airborne sounds NATURLAM W180 - ITeCons
Sound insulation index: Determination of the sound insulation index to airborne sounds Rw. Range: Rw≤72dB ISOLAM W180 - ITeCons
Sound insulation index: Determination of the insulation index to percussive conduction sounds, Ln,w. Range: Ln,w ≥ 25 dB CRIPTOLAM F210 - ITeCons
Sound insulation index: Determination of the sound insulation index to airborne sounds Rw. Range: Rw≤72dB CRIPTOLAM F210 - ITeCons
Sound insulation index: Determination of the sound insulation index to airborne sounds Rw. Range: Rw≤72dB ISOLAM W90 - ITeCons

Certifications

CE Marking 1029 - ITS Certificate of Good Standing for Performance 1029-CPR-PT21/07791 - SGS
ISO 9001:2015 certification Certificate of conformity PT20/07363 - SGS
ISO 14001:2015 certification Certificate of conformity PT20/07364 - SGS

ETA

European Technical Assessment ETA 18/0984

Organic emissions

Evaluation of the emission of volatile and semi-volatile organic compounds into indoor air NATURLAM W180 BILAM - ITeCons

Permeability & watertightness

Determining the air permeability and water tightness of timber log walls NATURLAM W180 BILAM - ITeCons
Determining the air permeability and water tightness of a wall with an integrated corner NATURLAM W180 BILAM - ITeCons

Seismic performances

SERIES Timber Buildings SEISMIC ENGINEERING RESEARCH INFRASTRUCTURES FOR EUROPEAN SYNERGIES – SEISMIC PERFORMANCE OF MULTI-STOREY TIMBER BUILDINGS Rusticasa building – Final Report – SERIES

Technical assessments

Technical Evaluation of the ITS System. Specifications, Test Methods and Results - ITS (Insul. Timber Syst.) – ITeCons
ANNEX 1 - Numerical modelling of CRIPTOLAM F210 and ISOLAM R230 panels – TecMinho
Experimental evaluation of the ISOLAM W180 unit and numerical modelling of the CRIPTOLAM F210 and ISOLAM R230 panels. - TecMinho
DELAMINATION TESTS: according to UNE EN 391, shear according to UNE EN 392 and bending according to UNE EN 408 - INIA

Thermal efficiency

Determination of thermal resistance and thermal transmission coefficient “ISOLAM R230” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “CRIPTOLAM F210” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “ISOLAM W180 - Unfinished outer face / Unfinished inner face” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “ISOLAM W180 - Unfinished outer face / Rounded inner face” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “ISOLAM W180 - Raw unfinished outer face / Microchamfer inner face” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “ISOLAM W180 - Flat outer face / Unfinished rough inner face” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “ISOLAM W180 - Rounded outer face / Rounded inner face” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “ISOLAM W180 - Flat outer face / Rounded inner face” panel - ITeCons
THERMAL CONDUCTIVITY: Determination of the thermal conductivity of sections of Picea Abies (Spruce) wood - LNEC
SPECIFIC HEAT OF WOOD: Experimental determination of the specific heat of Japanese Cryptomeria wood - ITeCons
THERMAL CONDUCTIVITY: Determination of the thermal conductivity of wood sections of Japanese Cryptomeria - LNEC
Determination of thermal resistance and thermal transmission coefficient “NATURLAM W180 – Bilam” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “CRIPTOLAM F210 – 2025” panel - ITeCons
Determination of thermal resistance and thermal transmission coefficient “NATURLAM R230” panel - ITeCons

Vapour transmission

Water vapour transmission properties: Determination of water vapour transmission properties (Test method: ISO 12572:2016) / Cryptomeria + External wood stain - ITeCons
Water vapour transmission properties: Determination of water vapour transmission properties (Test method: ISO 12572:2016) / Cryptomeria + OTADUY IGUALAK IL-201 - ITeCons
Water vapour transmission properties: Determination of water vapour transmission properties (Test method: ISO 12572:2016) / Cryptomeria + IRUFIRE REAL INTEGRAL - ITeCons
Water vapour transmission properties: Determination of water vapour transmission properties (Test method: ISO 12572:2016) / Cryptomeria - ITeCons

See Other systems

TFS ™

(Laminated Timber System)

Timber Frame

LTS ™

(Laminated Timber System)

Laminated Logs

HTS ™

(Laminated Timber System)

Hybrid System