Hanse Haus GmbH HANSE HAUS BUILDING SYSTEMS HANSE

APPROVAL
INSPECTION
TESTING
CERTIFICATION
Hanse Haus GmbH
Ludwig-Weber-Strasse 18
D-97789 Oberleichtersbach
Germany
Tel: 0049 9741 8080 Fax: 0049 9741 808 119
TECHNICAL APPROVALS FOR CONSTRUCTION
Agrément Certificate
15/5182
e-mail: [email protected]
website: www.hanse-haus.co.uk
Product Sheet 1
HANSE HAUS BUILDING SYSTEMS
HANSE HAUS INTERMEDIATE FLOOR, ROOF, INTERNAL AND EXTERNAL WALL PANELS
This Agrément Certificate Product Sheet (1) relates to Hanse
Haus Intermediate Floor, Roof, Internal and External Wall
Panels consisting of prefabricated timber-frame, mineral wool
insulation and oriented strand board sheathing for use above
the damp-proof course in the construction of new, detached
dwellings up to two storeys high.
(1) Hereinafter referred to as ‘Certificate’.
CERTIFICATION INCLUDES:
• factors relating to compliance with Building Regulations
where applicable
• factors relating to additional non-regulatory information
where applicable
• independently verified technical specification
• assessment criteria and technical investigations
• design considerations
• installation guidance
• regular surveillance of production
• formal three-yearly review.
KEY FACTORS ASSESSED
Strength and stability— the floor, wall and roof panels will have adequate strength and stiffness when used in accordance with the
provisions of this Certificate (see section 6).
Thermal performance — roofs constructed from the panels can contribute to achieving U values specified in the national Building
Regulations (see section 7).
Air permeability — buildings constructed from the panels can achieve adequate air barrier continuity provided there is effective
sealing around junctions, openings and penetrations (see section 8).
Behaviour in relation to fire — with adequate protection, the wall and intermediate floor panels meet the required fire resistance
periods given in the relevant national Building Regulations (see section 10).
Resistance to airborne sound — test data indicate that walls and floors constructed from the panels can provide satisfactory
resistance to airborne sound transmission (see section 12).
Durability — provided the panels remain protected from weather and ground moisture, they may be expected to achieve a life of at
least 50 years (see section 15).
The BBA has awarded this Certificate to the company named above for the system described herein. This system
has been assessed by the BBA as being fit for its intended use provided it is installed, used and maintained as set
out in this Certificate.
On behalf of the British Board of Agrément
Date of First issue: 17 February 2015
Brian Chamberlain
Claire Curtis-Thomas
Head of Approvals — Engineering
Chief Executive
The BBA is a UKAS accredited certification body — Number 113. The schedule of the current scope of accreditation for product certification is
available in pdf format via the UKAS link on the BBA website at www.bbacerts.co.uk
Readers are advised to check the validity and latest issue number of this Agrément Certificate by either referring to the BBA website or contacting the BBA direct.
British Board of Agrément
Bucknalls Lane
Watford
Herts WD25 9BA
©2015
Page 1 of 13
tel: 01923 665300
fax: 01923 665301
[email protected]
www.bbacerts.co.uk
Regulations
In the opinion of the BBA, Hanse Haus Intermediate Floor, Roof, Internal and External Wall Panels, if installed, used
and maintained in accordance with the provisions of this Certificate, can satisfy or contribute to satisfying the relevant
requirements of the following Building Regulations (the presence of a UK map indicates that the subject is related to
the Building Regulations in the region or regions of the UK depicted):
The Building Regulations 2010 (England and Wales) (as amended)
Requirement: A1
Loading
Comment:
Floors, walls and roofs constructed from the panels will have sufficient strength and stiffness when designed
in accordance with section 6 of this Certificate.
Requirement: B3
Internal fire spread (structure)
Comment:
Intermediate floors incorporating the panels can be designed to have a fire resistance of 30 minutes. See
section 10.1 of this Certificate.
Requirement: C2(c)
Resistance to moisture
Comment:
The panels can contribute to limiting the risk of surface condensation and can contribute to satisfying the
risk of interstitial condensation. See sections 9, 13.1 and 13.2 of this Certificate.
Requirement: E2(a)(b)
Protection against sound within a dwelling-house etc.
Comment:
The intermediate floor and wall panels, incorporating suitable plasterboard linings, can satisfy this
Requirement. See section 12.1 of this Certificate.
Requirement: L1(a)(i)
Conservation of fuel and power
Comment:
The panels can contribute to satisfying this Requirement when appropriate compensating fabric measures
are taken. See sections 7 and 8 of this Certificate.
Regulation:
7
Materials and workmanship
Comment:
Regulation: 26
Regulation: 26A
Regulation: 26A
Regulation: 26B
The panels are acceptable. See section 15 and the Installation part of this Certificate.
Comment:
The panels can contribute to satisfying these Regulations when appropriate compensating fabric/services
measures are taken. See sections 7 and 8 of this Certificate.
CO2 emission rates for new buildings
Fabric energy efficiency rates for new dwellings (applicable to England only)
Primary energy consumption rates for new buildings (applicable to Wales only)
Fabric performance values for new dwellings (applicable to Wales only)
The Building (Scotland) Regulations 2004 (as amended)
Regulation:
8(1)
Durability, workmanship and fitness of materials
Comment:
The panels can contribute to a construction satisfying this Regulation. See section 15 and the Installation
part of this Certificate.
Regulation:
Standard:
Building standards applicable to construction
Structure
9
1.1(b)
Comment:
Standard:
2.3
Comment:
Standard:
3.15
Comment:
Standard
5.2
Floors, walls and roofs constructed from the panels will have sufficient strength and stiffness when designed
in accordance with section 6 of this Certificate.
Structural protection
Intermediate floors incorporating the panels can be designed to have a fire resistance of 30 minutes with
reference to clauses 2.3.1(1) and 2.3.1(2). See sections 10.1 and 10.5 of this Certificate.
Condensation
The panels can adequately limit the risk of surface condensation and will contribute to minimising the risk
of interstitial condensation, with reference to clauses 3.15.1(1), 3.15.3(1), 3.15.4(1) and 3.15.5(1) of this
Standard. See sections 9.2, 9.3, 13.1 and 13.2 of this Certificate.
Noise reduction between rooms
Comment:
The intermediate floor and wall panels, incorporating suitable plasterboard linings, can satisfy this
Standard with reference to clause 5.2.1(1). See section 12.1 of this Certificate.
Standard:
Standard:
Carbon dioxide emissions
Building insulation envelope
6.1(b)
6.2
Comment:
Standard:
7.1(a)
The panels can contribute to satisfying these Standards, with reference to clauses 6.1.2(1), 6.1.6(1), 6.2.1(1),
6.2.4(1) and 6.2.5(1) when appropriate compensating fabric/services measures are taken. See sections 7
and 8 of this Certificate.
Statement of sustainability
Comment:
The panels can contribute to meeting the relevant Requirements of Regulation 9, Standards 1 to 6, and
therefore will contribute to a construction meeting a bronze level of sustainability as defined in this Standard.
(1) Technical Handbook (Domestic).
(2) Technical Handbook (Non-Domestic).
The Building Regulations (Northern Ireland) 2012
Regulation: 23
Fitness of materials and workmanship
Comment:
The panels are acceptable. See section 15 and the Installation part of this Certificate.
Page 2 of 13
Regulation:
29
Comment:
Regulation:
30
Comment:
Regulation:
35(1)
Condensation
The panels can contribute to minimising the risk of interstitial condensation. See sections 9.2, 9.3, 13.1
and 13.2 of this Certificate.
Stability
Floors, walls and roofs constructed from the panels will have sufficient strength and stiffness when designed
and constructed in accordance with section 6 of this Certificate.
Internal fire spread — Structure
Comment:
Intermediate floors panels incorporating suitable plasterboard linings can be designed to have a fire
resistance of 30 minutes. See section 10.1 of this Certificate.
Regulation:
Regulation:
Conservation measures
Target carbon dioxide emission rate
39(a)(i)
40(2)
Comment:
Regulation:
50
Comment:
The panels can contribute to satisfying these Regulations when appropriate compensating fabric/services
measures are taken. See sections 7 and 8 of this Certificate.
Projection against sound within a dwelling or room for residential purposes
The intermediate floor and wall panels, incorporating suitable plasterboard linings, can satisfy this
Requirement. See section 12.1 of this Certificate.
Construction (Design and Management) Regulations 2007
Construction (Design and Management) Regulations (Northern Ireland) 2007
Information in this Certificate may assist the client, CDM co-ordinator, designer and contractors to address their
obligations under these Regulations.
See sections:
3 Delivery and site handling (3.2) and 17 General (17.1) of this Certificate.
Technical Specification
1 Description
1.1 Hanse Haus Intermediate Floor, Roof, Internal and External Wall Prefabricated Panels comprise a range of timber
components for the construction of the floor, wall and roof building. Assembly is carried out on-site, onto previously
prepared foundations of an agreed size and layout.
1.2 The prefabricated panels consist of oriented strand board(1) (OSB/4), used as timber sheathing, bonded to
mineral wool insulation of the required thickness. Component sizes and material grades are given in Tables 1 and 2,
and fixing details for connecting components in Table 3.
(1) The top and bottom sheathing on the suspended floor elements is composed of particle board or OSB/4, and timber respectively.
Table 1 Dimensions of components and panels
Prefabricated panels
Intermediate floor
Component
Dimensions of components
(mm)
OSB top sheathing
Timber beam joists
18
70 x 220 to 200 x 260
(at max 625 mm centres)
100
30 x 60 mm at 417 mm axial spacing
1.25 x 2.50
8
25 x 84 at edges
50 x 84 at maximum 313 mm centres
25 x 84
45 x 82
84
various, to suit studs
20 x 100, 50 x 100
30 x 100, 50 x 100
1.25 x 2.54(1)
Timber for noggins
Timber connection post
Mineral wool insulation
Timber sole/head plates
Timber top chord
Timber bottom chord
8, 15(2)
25 x 124 at edges
50 x 124 at max 313 mm centres
25 x 124
48 x 122
124
various, to suit studs
50 x 124
30 x 140 and 50 x 140
1.25 x 2.54(1)
Timber rafter
Timber transverse beam
Wood fibreboard (HB.E)
Mineral wool insulation
Batten
70 x 220 to 100 x 260 at 625 mm spacing
40 x 220 to 100 x 260 at maximum 625 mm centres
15
220-260
30 mm x 60 mm at 417 mm axial spacing
1.25 x 2.50
Mineral wool
Batten
OSB sheathing
Timber stud frame
Internal wall
Timber for noggins
Timber connection post
Mineral wool insulation
Timber sole/head plates
Timber top chord
Timber bottom chord
OSB sheathing
Timber stud frame
External wall
Roof
(1) Factory-assembled multi-panelled wall elements up to 13.60 m are available.
(2) For gable external wall.
Page 3 of 13
Dimensions of prefabricated
panels
(m)
Table 2 Material grades
Material
Solid timber
Oriented strand board
Wood fibreboards
Glued, laminated timber
Grade/value
Standard reference
C24
Service class 1
EN 338 : 2009 and/or EN 14081-1 : 2005
EN 1995-1-1 : 2004
OSB/4
EN 300 : 2006 and/or EN 13986 : 2004
HB.E
EN 622-2 : 2004
GL24h, GL28h, GL32h
EN 14080 : 2013
Particle board
P4
EN 312 : 2010 and/or EN 13986 : 2004
Mineral wool
thermal conductivity
(D value 0.035 W∙m–1∙K–1)
EN 13162 : 2012
S235
EN 1993-1-1 : 2005
Steel beam and plates
Table 3 Details of fixings
Element
Floors
Timber batten to beam
OSB sheathing to beam
Steel beam/steel plates to wall frame
Joist hangers to wall and beam
Walls
OSB sheathing to connection post
OSB sheathing to timber stud frame
Roofs
Timber batten to rafter
Lath to rafter
Joist hangers to wall and beam
Fixing descriptions
Standard
3.1 mm x 90 mm nails
1.83 mm x 65 mm staples, galvanized and resinated
(at 120 mm spacing)
EN 14566
EN 14592
In accordance with structural design detail
4.0 mm x 40 mm steel nails
EN 1993-1-8 : 2005
EN 10230-1 : 2000
1.15 mm x 32 mm staples, galvanized and resinated
two-component glue
EN 14545 : 2008
EN 301 : 2013/EN 302-1 : 2013
1.8 mm x 65 mm staples, galvanized and resinated
28 mm x 65 mm nails
4.0 mm x 40 mm nails
EN 14592 : 2008
EN 14545 : 2008
1.3 Ancillary items or components used with the panels to complete the construction but outside the scope of this
Certificate include:
• foundation fixings — anti-corrosion anchor ties, and tension and angle brackets. Fixed to the concrete as per design
specification(1)
• fixings — including joist hangers(1)
• internal finishes — plasterboard or gypsum board (manufactured in accordance with BS EN 520 : 2004). Used on
internal linings of walls(1)
• vapour control barrier — 0.2 mm thick polyethylene (PE) foil to BS EN ISO 12572 : 2001, sd (equivalent air layer
thickness ) >100 m(1)
• windows and doors — framed openings created by using appropriately-sized elements; windows are installed in
the factory(1)
• lintels (factory installed) — glued laminated timber (GL24h), dimension depends on opening size
• steel beam — 120 mm and 200 mm wide (steel grade S235)(1)
• PE foil(1)
• foundation and damp-proof course (dpc) — to agreed specification, on individual project basis
• adhesives — including sole plate grout silicone and BASF melamine-based glue
• Terofol tape
• underfloor heating systems.
(1) bought-in, to Hanse Haus’s specification.
Page 4 of 13
Figure 1 Panel details
wood fibre board 15 mm
battening 30/60 mm
220 mm to 260 mm mineral wool
vapour barrier
roof panel
floor joist according to structural design
18 mm OSB board
100 mm mineral fibre insulation
12.5 mm gypsum board (GKF)
30/60 mm battening
floor panel
124 mm mineral wool
84 mm mineral wool
124 mm x 50 mm vertical timber
frame with cable duct
84 mm x 50 mm vertical timber
frame with cable duct
8 mm OSB
8 mm OSB
124 mm x 25 mm timber frame
84 mm x 25 mm timber frame
122 mm x 48 mm connection post
84 mm x 48 mm connection post
staples
staples
external wall panel (horizontal section)
internal wall panel (horizontal section)
Page 5 of 13
2 Manufacture
2.1 The panels are manufactured by conventional techniques from a range of engineered and solid timber
components to provide completed modular prefabricated kits under controlled factory conditions.
2.2 The external and internal wall panels are glued to the framing structure at the factory with two-component glue and
mechanical fasteners. In addition, the insulation slabs are also glued over their entire surface onto the OSB sheathing.
2.3 To ensure product quality is consistently maintained to the required specification, the BBA has:
• agreed with the Certificate holder/manufacturer the quality control procedures and product testing to be undertaken
• assessed and agreed the quality control operated over batches of incoming materials
• monitored the production process and verified that it is in accordance with the documented process
• evaluated the process for management of nonconformities
• checked that equipment has been properly tested and calibrated
• undertaken to carry out the above measures on a regular basis as part of a surveillance process to ensure that
standards are maintained and that the product or system remains as Certificated.
2.4 The management system of Hanse Haus GmbH has been assessed and registered as meeting the requirements of
DIN EN ISO 9001 : 2008 (Certificate 0810-2013-Q) and DIN EN ISO 14001 : 2009 (Certificate 0910-2013-U)
by PÜG Prüf- und ÜberwachungsgesellschaftmbH.
3 Delivery and site handling
3.1 The panel components are fabricated in the factory and are supplied in kit form. Timber components are
prefabricated and brought onto site as assembled elements.
3.2 The panels must be lifted in accordance with the Certificate holder’s instructions and adequately restrained to
avoid overturning and sliding.
3.3 Where temporary storage of the components is necessary, items must be stored inside and under cover in a dry,
heated environment to prevent moisture ingress.
Assessment and Technical Investigations
The following is a summary of the assessment and technical investigations carried out on Hanse Haus Intermediate
Floor, Roof, Internal and External Wall Panels.
Design Considerations
4 General
4.1 Hanse Haus Intermediate Floor, Roof, Internal and External Wall Panels are suitable for use above the dpc in
the construction of a detached dwelling up to two storeys(1). It is essential that the panels are constructed strictly in
accordance with the Certificate holder’s designs. All constructions incorporating the panels must be assessed and
approved by a suitably qualified and experienced individual, who must also ensure that the panels meet the relevant
national Building Regulations and are protected from moisture (see section 13).
(1) See section 6.6 of this Certificate
4.2 All structural calculations and production drawings are undertaken by the Certificate holder’s own design team
when preparing design guidance.
4.3 The panels are used to construct the inner leaf of an external wall. All masonry below the dpc must be built in
accordance with EN 1996-1-1 : 2005 or EN 1996-2 : 2006, and roof tiles and slates applied in accordance with
BS 5534 : 2014.
4.4 Foundations must be checked for use by the Certificate holder’s technical staff, and be suitably level and square
to accept the panels.
5 Practicability of installation
The panels should only be installed by installers who have been trained and approved by the Certificate holder.
6 Strength and stability
6.1 The roof, intermediate floor, external and internal wall panels will have adequate strength and stiffness
when used in accordance with the provisions of this Certificate.
6.2 Designs of typical structures carried out by a suitably qualified chartered structural engineer have been examined
by the BBA and demonstrate that the system can be designed to comply with:
• EN 1990 : 2002
• EN 1991-1-1 : 2002
• EN 1991-1-3 : 2003
Page 6 of 13
• EN 1991-1-4 : 2005
• EN1995 -1-1 : 2004.
6.3 The timber used for panels must have a moisture content of less than 15 % for walls, and 18 % for roofs and
intermediate floors.
6.4 The roof incorporating the panels must be designed to support a uniformly distributed imposed load or
concentrated loads in accordance with Table NA.7 of the UK National Annex to BS EN 1991-1-1 : 2002.
6.5 Snow and wind loads depend on the geographic location, footprint size and shape of building, and must be
verified in accordance with EN 1991-1-3 : 2003 and EN 1991-1-4 : 2005 and their respective UK National
Annexes. Due consideration should be given to the higher pressure coefficients applicable to corners of the building, as
recommended in EN 1991-1-4 : 2005.
6.6 The maximum characteristic value of a uniformly distributed imposed load for intermediate floors must be 1.5 kN·m–2,
or 2 kN for an imposed point load, in accordance with EN 1991-1-1 : 2002.
6.7 The intermediate floor panels are designed so that the maximum deflection does not exceed the values shown in
Table 4.
Table 4 Permissible beam deflection (Table 7.2 of EN 1995-1-1 : 2004)
Beam type
Instantaneous deflection
Net final deflection
Final deflection(1)
Beam on two supports
L/300 to L/500
L/250 to L/350
L/150 to L/300
Cantilever beams
L/250 to L/250
L/125 to L/175
L/75 to L/150
(1) Final deflection of timber joists must be designed to be less than L/300.
6.8 The wall diaphragms shall be designed to resist both horizontal and vertical imposed loads in accordance with
clause 9.2.4 of EN 1995-1-1 : 2004.
6.9 Stability checks against wind loads for each specific site must be carried out to ensure that the panels are stable
against sliding and overturning moment. Adequate, anti-corrosion hold-down bolts to resist against shear force and
sliding should be specified. The size and number of bolts required depends on the geographic location, footprint size
and shape of building. Stability calculations are available from the Certificate holder justifying any requirements for
bolting the floor and wall panels to the foundation.
6.10 The strength of all connection details that tie the wall panels to other structural elements must be evaluated,
and provide adequate stability for the overall building design. The specification and design for these items must be
determined by a suitably qualified and experienced individual responsible for the stability of the building. Guidance on
the design of connection details may be obtained from the Certificate holder.
6.11 As part of the structural design, consideration should be given to the vibrations in residential floor panels
in accordance with clause 7.3.3 of EN 1995-1-1 : 2004 and clause NA.2.7 of the UK National Annex to
BS EN 1995-1-1 : 2004.
7 Thermal performance
7.1 Calculations of thermal transmittance (U value) should be carried out in accordance with BS EN ISO 6946 :
2007 and BRE Report 443 : 2006, using the values in Table 5.
Table 5 Thermal conductivity values
Component
Thermal conductivity
(W·m–1·K–1)
OSB sheet
0.13
Mineral wool
0.035(1)
Timber studs
0.12
(1) Declared value (D).
7.2 Indicative calculations, Table 6, indicate that walls (and roofs in Scotland and Wales) will need additional
thermal insulation in order to meet the minimum U values specified in documents supporting the national Building
Regulations for limiting excessive heat loss. Roofs and walls will need additional thermal insulation in order to meet
notional dwelling U value requirements, unless compensating fabric and/or services measures are taken.
Page 7 of 13
Table 6 Panel U values (without additional insulation) (1)
Element
Panel stud/rafter dimensions
(mm)
Stud/rafter centres
(mm)
timber bridging fraction
U value(2)
(W·m–2·K–1)
Wall
50 x 124
625
19.4%(1)
0.35
Roof
70 x 220(3)
100 x 260(4)
625
625
23.5%
39.2%
0.19
0.23
(1) Includes studs, chords, noggins, connections posts and 50 mm sole plates and top rails.
(2) Values include plasterboard lining and a well ventilated airspace adjacent to the cold side of the panels. Roof panels include 30 mm x 60 mm
plasterboard battens at 417 mm centres.
(3) Includes 40 mm thick cross beams at 625 mm c/s.
(4) Includes 100 mm thick cross beams at 625 mm c/s.
7.3 Junctions between the panels will adequately limit excessive heat loss when suitable weather cladding is applied.
Care must be taken to ensure good junction detailing and air barrier continuity.
7.4 Care must be taken in the overall design and construction of junctions with other elements to minimise thermal
bridges and air infiltration. Detailed guidance can be found in the documents supporting the national Building Regulations.
8 Air permeability
Buildings incorporating the panels can achieve adequate resistance to heat loss by air infiltration, provided there
is effective sealing around junctions between roof and wall elements during site assembly. Care should be taken
to ensure junctions with other elements and openings comply with the relevant guidance for airtightness as given
in the relevant documents referred to in section 7.4.
9 Condensation risk
Surface condensation
9.1 Walls and roofs will limit the risk of condensation adequately when the thermal transmittance (U value) does
not exceed 0.7 W·m–2·K–1 and 0.35 W·m–2·K–1 respectively at any point and the junctions with other elements
and openings comply with section 7.4.
Interstitial condensation
9.2 Walls and roofs incorporating the system will adequately limit the risk of interstitial condensation when they
are designed and constructed in accordance with BS 5250 : 2011, section 4, Annex G, Annex H and, using
the properties in Table 7, Annex D.
Table 7 Water vapour resistance factors (μ) values and
equivalent air layer thickness (sd) value
Component
(μ)
OSB sheet (warm side)
50
–
OSB sheet (cold side)
30
–
1
–
Mineral wool
Woodfibre board (HB.E) (15 mm)
11
sd
(m)
0.17
9.3 The risk of interstitial condensation is greatest when the building is drying out after construction. Guidance
on preventing condensation is given in BRE Digest 369 and BRE Report 262 : 2002.
10 Behaviour in relation to fire
10.1 When tested to EN 13501-2 : 2007 and EN 1365-1 : 1999, an intermediate floor construction
achieved the results shown in Table 8.
Table 8 Fire performance and construction detail of floor
Performance(s)
R 30, RE 30, REI 30
Load
Bending moment
33.0 (KN·m)
Constructions
Floor
Dimension of floor construction 4950 mm (length) x 3000 mm (width) x 300.5 mm (thickness).
OSB sheet 18 mm fixed to timber joists by steel galvanized staples (1.83 mm x 65 mm) at
120 mm centres
Timber joists (70 x 240) mm at 625 mm centres
One layer of mineral wool WLG 040, 100 mm thick with bulk density 15 kg·m3
Transvers grid pastern 30 mm x 60 mm with 417 mm axial spacing. The slats are fixed by
2 nails (3.1 mm x 90 mm), to each timber joist.
Plasterboard GKF 12.50 mm thick fixed to transverse grid by screws 3.9 mm x 30 mm at
170 mm centres.
The joints between boards are fixed by mastic KNAUF Fugenfüller Leicht.
Page 8 of 13
10.2 For the external wall panel, a fire rating of 30 minutes can be achieved by appropriate fire protection.
10.3 The height of the top floor of the dwelling must not exceed 5 metres.
10.4 The OSB/4 linings have a Class 3(1) surface spread of flame classification.
(1) ‘High risk’ in Scotland.
10.5 Constructions incorporating the wall and roof panels must include suitable provision for fire stopping at
junctions with other elements.
11 Proximity of flues and appliances
When installing the panels in close proximity to certain flue pipes and/or heat producing appliances, the following
provisions of the national Building Regulations are applicable:
England and Wales — Approved Document J
Scotland — Mandatory Standard 3.18, clauses 3.18.1(1) to 3.18.6(1)
(1) Technical Handbook (Domestic).
Northern Ireland — Technical Booklet L.
12 Resistance to airborne sound
12.1 Laboratory test data relating to measurements made in accordance with EN ISO 10140-1 : 2010 and
EN ISO 10140-2 : 2010 indicate that the wall and floor constructions detailed in Tables 9 and 10 and Figure 2
are resistant to airborne sound transmission.
Table 9 Airborne sound insulation (dB) — laboratory test results
Construction
Airborne sound insulation Rw (dB)
Intermediate wall
Rw (Cl;Clt) = 43(–3–7)
(1)
(1) Element dimension = 4373 mm x 2640 mm; plasterboard weight = 12.9 kg·m–2; OSB weight =
5.3 kg·m–2; mineral wool weight= 18.8 kg·m–3; surface related weight = 47.3 kg·m–2.
Table 10 Airborne sound insulation (dB) — laboratory test results for
intermediate floors
Construction
Airborne sound insulation Rw (dB)
Intermediate l floor
Rw (Cl;Clt) = 52(–6–14)
Figure 2 Example detail of floor cross-section for airborne sound insulation
30 mm polystyrene
minimum 150 kPa
10 mm wood fibre board
18 mm OSB board
2 x 12.5 mm dry screed boards KnaufTUB
beam in accordance
with structural design
80/30 mm battening
1.83 x 65 mm staple
2 nails 3.1 x 90 mm
on each connection
12.5 mm gypsum board (GKF)
100 mm mineral
fibre insulation
Page 9 of 13
12.2 It is essential that care is taken in the design and during installation to avoid direct paths for airborne sound
transmission, and to minimise paths for flanking sound transmission.
13 Weathertightness
13.1 When the elements are used to form the inner leaf of an external cavity wall, the outer masonry leaf must
be designed and constructed in accordance with EN 1996-1-2 : 2005, incorporating dpc’s and cavity trays
positioned in accordance with EN 1996-1-2 : 2005. A breather membrane is required with this type of
construction.
13.2 When used with other outer leaf constructions, cladding or render systems, the final weather resistance of the
building is dependent upon the efficient positioning and sealing of all joints. The guidance given in BRE Report 262 :
2002, Section 3, should be followed with regard to rain penetration in that the designer selects a construction
appropriate to the local wind-driven rain index, paying due regard to the design detailing, workmanship and materials
to be used.
13.3 Roofing should be in accordance with BS 5534 : 2014, and detailed to ensure moisture is prevented from
coming into contact with the elements.
13.4 The performance of windows and doors is not covered by this Certificate.
14 Maintenance and repair
14.1 Although maintenance is not envisaged for the completed building, regular checks should be carried out on the
finishes to ensure that any damage is detected and repaired as soon as possible.
14.2 Any damaged panels must not be used or installed.
15 Durability
15.1 Provided the installation of the floor, external wall and roof panels remains weathertight, a life of at least
50 years may be expected for the structural building components. Consideration must also be taken with the
type of external finishes used with elements with regard to service life expectancy.
15.2 External wall insulation finishes used in conjunction with the wall panels must meet the appropriate national
Building Regulations (see section 14).
15.3 Timber used in areas that could be at risk (eg sole plates(1)) must conform to use Class 2 in accordance with
EN 335 : 2013 and should be preservative-treated in accordance with the recommendations given in BS 8417 : 2011.
15.4 Fasteners must meet the requirements of service Class 2 in accordance with EN 1995-1-1 : 2004.
(1) All other wood-based components must conform to use Class 1 in accordance with EN 335 : 2013.
16 Reuse and recyclability
The timber components of the panels can be recycled.
Installation
17 General
17.1 Erection of the Hanse Haus Intermediate Floor, Roof, Internal and External Wall Panels (Figure 3) must comply
with the details given in the Certificate holder’s construction manual and the provisions of this Certificate. This
information covers information about the necessary equipment (eg crane use, hoisting straps positions) and any erection
techniques to be adopted, as well as weather protection and temporary bracing methods.
17.2 The main contractor must ensure that the accuracy of the foundation is in accordance with the Certificate
holder’s instructions. This includes:
• level of the foundation or other bearing support (eg the level the foundation must be within the tolerance of ± 5 mm)
• overall width and length of the building footprint
• diagonals used for checking the overall squareness of the building.
18 Procedure
General
18.1 A suitable dpc is laid on top of the foundation.
18.2 The anchorage of the panels to the foundation concrete slab is made in accordance Certificate holder’s design
specifications.
18.3 The factory-assembled intermediate floor and wall panels are interconnected on site by solid timber corner posts
supplied with the system, in a predetermined order on a project-specific basis.
18.4 The completion of joints between adjacent panels of the system must be fully sealed to ensure against moisture
ingress. All connections between intermediate floor, wall and roof elements are carried out strictly in accordance with
the Certificate holder’s installation procedures using the appropriate fixings.
Page 10 of 13
19 Finishing
19.1 Once installation of the panels is completed, the external and internal finishes can be installed.
19.2 The roof tiling/slate battens must be applied in accordance with BS 5534 : 2014.
Figure 3 Typical installation details
external wall
staple at approximately
150 mm centres
connection lath glued
and fixed with nails
internal wall
external wall to internal wall connection
external wall
construction
angle fastened to wall
element with threaded nails
steel plate
moisture barrier
dpc
mortar bed
heavy duty anchor
Terofol tape for
plinth sealing
foundation
external wall panel to foundation connection
Technical Investigations
20 Tests
Tests were carried out to determine:
• Intermediate floor fire resistance
• Airborne sound.
21 Investigations
21.1 An examination was made of technical data relating to structural properties and design calculations
21.2 A visit was made to an existing site to assess the installation process and performance of the system in service.
Page 11 of 13
Bibliography
BS 5250 : 2011 Code of practice for control of condensation in buildings
BS 5534 : 20 14 Code of practice for slating and tiling (including shingles)
BS 8417 : 2011 Preservation of wood — Code of practice
BS EN 520 : 2004 Gypsum plasterboards — Definitions, requirements and test methods
BS EN ISO 12572 : 2001 Hygrothermal performance of building materials and products —Determination of water
vapour transmission properties
DIN EN ISO 9001 : 2008 Quality management systems — Requirements
DIN EN ISO 14001 : 2004 Environmental management systems — Requirements with guidance for use
EN 300 : 2006 Oriented strand boards (OSB) — Definitions, classification and specifications
EN 301 : 2013 Adhesives, phenolic and aminoplastic, for loadbearing timber structures — Classification and
performance requirements
EN 302-1 : 2013 Adhesives for load-bearing timber structures — Test methods Part 1: Determination of longitudinal
tensile shear strength
EN 312 : 2010 Particleboards — Specifications
EN 335 : 2013 Durability of wood and wood-based products — Use classes: definitions, application to solid wood
and wood-based products
EN 338 : 2009 Structural timber — Strength classes
EN 622-2 : 2004 Fibreboards — Specifications — Requirements for hardboards
EN 1365-1 : 1999 Fire resistance tests for loadbearing elements — Walls
EN 1990 : 2002 Eurocode — Basis of structural design and UK National Annex for BS EN 1990
EN 1991-1-1 : 2002 Eurocode 1 — General actions — Densities, self-weight, imposed loads for buildings and UK
National Annex for BS EN 1991-1-1
EN 1991-1-3 : 2003 Eurocode 1 — General actions — Snow loadsand UK National Annex for BS EN 1991-1-3
EN 1991-1-4 : 2005 Eurocode 1 — Actions on Structures — General actions — Wind actions and UK National
Annex for BS EN 1991-1-4
EN 1993-1-1 : 2005 Eurocode 3 — Design of steel structures — General rules and rules for buildings and UK
National Annex for BS EN 1993-1-1
EN 1993-1-8 : 2005 Eurocode 3: Design of steel structures — Design of joints
EN 1995-1-1 : 2004 Eurocode 5 — Design of timber structures — General — Common rules and rules for buildings
and UK National Annex for BS EN 1991-1-5
EN 1996-1-1 : 2005 Eurocode 6: Design of masonry structures: General rules for reinforced and unreinforced
masonry structures and UK National Annex for BS EN 1996-1-1
EN 1996-1-2 : 2005 Eurocode 6. Design of masonry structures. General rules. Structural fire design and UK National
Annex to BS EN 1996-1-2:2005
EN 1996-2 : 2006 Eurocode 6 — Design of masonry structures — Design considerations, selection of materials and
execution of masonry
EN 10230-1 : 2000 Steel wire nails — Loose nails for general applications
EN 13501-2 : 2007 Fire classification of construction products and building elements — Classification using data
from fire resistance tests, excluding ventilation services
EN 13162 : 2012 Thermal insulation products for buildings — Factory made mineral wool (MW) products—
Specification
EN 13986 : 2004 Wood-based panels for use in construction — Characteristics, evaluation of conformity and
marking
EN 14080 : 2013 Timber structures — Glued laminated timber and glued solid timber — Requirements
EN 14081-1 : 2005 Timber structures — Strength graded structural timber with rectangular cross section — General
requirements
EN 14545 : 2008 Timber structures — Connectors — Requirements
EN 14566 : 2008 Mechanical fasteners for gypsum plasterboard systems — Definitions, requirements and test methods
EN 14592 : 2008 Timber structures — Dowel-type fasteners — Requirements
EN ISO 6946 : 2007 Building components and building elements — Thermal resistance and thermal transmittance —
Calculation method
EN ISO 10140-1 : 2010 Acoustics — Laboratory measurement of sound insulation of building elements Part 1 :
Application rules for specific products
Page 12 of 13
EN ISO 10140-2 : 2010 Acoustics — Laboratory measurement of sound insulation of building elements Part 2 :
Measurement of airborne sound insulation
BRE Digest 369 : 1992 Interstitial condensation and fabric degradation
BRE Report (BR 262 : 2002) Thermal insulation : avoiding risks
BRE Report (BR 443 : 2006) Conventions for U-value calculations
Conditions of Certification
22 Conditions
22.1 This Certificate:
• relates only to the product/system that is named and described on the front page
• is issued only to the company, firm, organisation or person named on the front page — no other company, firm,
organisation or person may hold or claim that this Certificate has been issued to them
• is valid only within the UK
• has to be read, considered and used as a whole document — it may be misleading and will be incomplete to be
selective
• is copyright of the BBA
• is subject to English Law.
22.2 Publications, documents, specifications, legislation, regulations, standards and the like referenced in this Certificate
are those that were current and/or deemed relevant by the BBA at the date of issue or reissue of this Certificate.
22.3 This Certificate will remain valid for an unlimited period provided that the product/system and its manufacture
and/or fabrication, including all related and relevant parts and processes thereof:
• are maintained at or above the levels which have been assessed and found to be satisfactory by the BBA
• continue to be checked as and when deemed appropriate by the BBA under arrangements that it will determine
• are reviewed by the BBA as and when it considers appropriate.
22.4 The BBA has used due skill, care and diligence in preparing this Certificate, but no warranty is provided.
22.5 In issuing this Certificate, the BBA is not responsible and is excluded from any liability to any company, firm,
organisation or person, for any matters arising directly or indirectly from:
• the presence or absence of any patent, intellectual property or similar rights subsisting in the product/system or any
other product/system
• the right of the Certificate holder to manufacture, supply, install, maintain or market the product/system
• actual installations of the product/system, including their nature, design, methods, performance, workmanship and
maintenance
• any works and constructions in which the product/system is installed, including their nature, design, methods,
performance, workmanship and maintenance
• any loss or damage, including personal injury, howsoever caused by the product/system, including its manufacture,
supply, installation, use, maintenance and removal
• any claims by the manufacturer relating to CE marking.
22.6 Any information relating to the manufacture, supply, installation, use, maintenance and removal of this product/
system which is contained or referred to in this Certificate is the minimum required to be met when the product/system
is manufactured, supplied, installed, used, maintained and removed. It does not purport in any way to restate the
requirements of the Health and Safety at Work etc. Act 1974, or of any other statutory, common law or other duty
which may exist at the date of issue or reissue of this Certificate; nor is conformity with such information to be taken as
satisfying the requirements of the 1974 Act or of any statutory, common law or other duty of care.
British Board of Agrément
Bucknalls Lane
Watford
Herts WD25 9BA
©2015
Page 13 of 13
tel: 01923 665300
fax: 01923 665301
[email protected]
www.bbacerts.co.uk