SCANROC SYSTEM

Thermal efficiency

 

  • Thermal efficiency
  • Soundproofing

SCANROC facade systems have outstanding thermal and acoustic properties

SCANROC is the first Ukrainian manufacturer of ventilated facade structures to carry out voluntary research into the thermal and sound insulation properties of facade systems

SCANROC system thermal efficiency

Energy efficiency label for SCANROC facade system

Issued under the methodology for assessing the energy efficiency of energy labeling of facade systems #1 of 25.01.2019

authorization # VRV-217-6369.19-002

Parameter

UoM

Outcome

Effective heat transfer resistance [Rpr]

m2⋅K/W

4,25

Thermal dissimilarity [r]

0,83

Basic reference service life

years

25

Air permeability of thermal insulation material

m3/(m2⋅h)

0,228

Flammability class of insulation material

NG (non-combustible)

Determination of the energy efficiency classes of SCANROC facade system at the location in the enclosure

Location in the enclosure

Wall, facade insulation plus finish

Basement wall surface

Foundation wall surface

Energy efficiency class

Class C [K=4.07]

Class C [K=4.07]

Class C [K=4.07]

The energy efficiency class is determined by the energy efficiency criterion K by the formula:

 KKr + ki + Ka + kt + Ks = 0.83 + 0.19 + 1 + 0.8 + 1.25 = 4.07

where

Kr is the criterion of thermal dissimilarity of the structure found from the structure’s experimental tests

Kr = RΣпр/RΣ = 0.83 (according to test report # 101k/18 of 29.11.2018, see below).

where RΣ is the heat transfer resistance of the major structure field.

ki is the air permeability criterion for thermal insulation and windproofing

kiri [ і10 / іb] = 0.5 ⋅ 0.228 / 0.6 = 0.19

where

ri — is the scale factor assumed as 0.5 for facade thermal insulation structures as per GOST B. 2.6-35;

іb — is the basic air permeability assumed as 0.6 kg/(m·h· Pa);

і10 — is the material air permeability at a 10 Pa pressure drop found by experiments as per DSTU B V.2.6-37.

Ka is the flammability criterion of structure’s heat-insulating and finishing layers Ka = 1 structure (0.25 to 1 for G4-G1 noncombustible layers).

kt is the structure’s thermal reliability criterion from long-run tests

kt = 5 ⋅ (Rτ / R0) – 4 = (5 ⋅ 3.31 / 3.44 – 4) = 0.8

where

Rτ — is the structure’s heat transfer resistance from long-run tests obtained by experiments;

R0 — is the basic structure’s heat transfer resistance.

Ks is the system’s longevity criterion for weather impact cases, as defined шт DSTU B М.2.6-36 (for plastering systems) or DSTU B М.2.7-130, mode II (for other systems) and DSTU-Т B ETAG 017

Ks=1,25 ⋅ [Θδ / Θτ] = 1.25 ⋅ 25 / 25 = 1.25

where

Θδ is the basic structure’s effective life assumed as 25 years;

Θτ is the experimental structure’s effective life for basic reference years found as per techniques of DSTU B V.2.6-36: 2008 (Annex D), DSTU B V. 2.7-130, DSTU-N ETAG 017.

Description of the research target

The tests were implemented for SCANROC VFS-2 ventilated facade system, which consists of the following main parts:

  1. Wall structural layer.
  2. Metal frame to wall attachment system.
  3. Metal frame to which facade tiles are attached.
  4. Thermal insulation.
  5. Facade tiles.

SCANROC system’s important energy efficiency parameters

from the Findings based on the thermal performance assessment of SCANROC facade insulation system  with air layer and industrial finish
# VRV-217-6369.19-001 of 25.01.2019

Sample wall

Parameter

Outcome

Standard

Layer 1: aerated concrete block cladding

Layer 2: mineral wool (80 kg/m3) s = 100 mm

Wall + window

Temperature difference ΔТ

Basic reference heat transfer resistance R

1.0 °С

3.96
m2⋅К/W

≤ 4 °С

≥ 3.3 / 2.8
m2⋅К/W

Layer 1: Ceramic hollow block cladding

Layer 2: mineral wool (45 kg/m3) s = 50 mm

Layer 3: mineral wool (80 kg/m3) s = 100 mm

Temperature difference ΔТ

Прив. сопр. теплопередаче R

0.9 °С

4.25
m2⋅К/W

≤ 4 °С

≥ 3.3 / 2.8
m2⋅К/W

Layer 1: reinforced concrete wall panel

Layer 2: mineral wool (80 kg/m3) s = 100 mm

Temperature difference ΔТ

Прив. сопр. теплопередаче R

0.8 °С

4.63
m2⋅К/W

≤ 4 °С

≥ 3.3 / 2.8
m2⋅К/W

Minimum permissible value, RQ min, of heat transfer resistance of residential and public building envelope according to DBN V. 2.6-31: 2016

  • Minimum heat transfer resistance for temperature zone I Rq min = 3.3 [m2·K/W]
  • Minimum heat transfer resistance for temperature zone II Rq min = 2.8 [m2·K/W]

Sanitary & hygienic requirements allowable difference between the inside air temperature and the basic reference temperature of the enclosure’s inner surface ΔTsg, °С

  • Residential houses, pre-school institutions, educational institutions and health care institutions ΔTsg ≤ 4.0 °С

SCANROC facade system soundproofing

Frequency response of airborne noise insulation R of the outer wall s = 200 mm thick and 400 kg/m3 dense

from the Validation laboratory tests report for soundproofing of the outer enclosure made of 400 kg/m3 aerated concrete blocks with SCANROC ventilated facade insulation

# PRV-217-6369.18-100k/18 of 23.11.2018

Frequency response of aerated concrete wall s=200 mm without insulation and without SCANROC system

Frequency response of aerated concrete wall s=200 mm without insulation, but with installed SCANROC system

Frequency response of aerated concrete wall s=200 mm with insulation and SCANROC system installed

Frequency response of airborne noise insulation R of the outer wall s = 200 mm thick and 600 kg/m3 dense

from the Validation laboratory tests report for soundproofing of the outer enclosure made of 400 kg/m3 aerated concrete blocks with SCANROC ventilated facade insulation

# PRV-217-6369.18-98k/18 of 12.11.2018

Frequency response of aerated concrete wall s=200 mm without insulation and without SCANROC system

Frequency response of aerated concrete wall s=200 mm without insulation, but with installed SCANROC system

Frequency response of aerated concrete wall s=200 mm with insulation and SCANROC system installed

Supporting documents

Findings based on the energy efficiency class assessment of SCANROC facade insulation system with air layer and industrial finish

# VRV-217-6369.19-002
Issue date: 25.01.2019
[UA]

Findings based on the thermal performance assessment of SCANROC facade insulation system with air layer and industrial finish

# VRV-217-6369.19-001
Issue date: 25.01.2019
[UA]

Validation test report on determination of the reduced heat transfer resistance of SCANROC facade insulation systems with ventilated air gap

# PRМ-217-24/10/18/6369.18-101k/18
Issue date: 29.11.2018
[UA]

Validation laboratory tests report for soundproofing of the outer enclosure made of 400 kg/m3 aerated concrete blocks with SCANROC ventilated facade insulation

# PRV-217-6369.18-100k/18
Issue date: 23.11.2018
[UA]

Validation laboratory tests report for soundproofing of the outer enclosure made of 600 kg/m3 aerated concrete blocks with SCANROC ventilated facade insulation

# PRV-217-6369.18-98k/18
Issue date: 12.11.2018
[UA]

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