Transcript
TM
Kerto-Ripa
LONG-SPAN ENGINEERED TIMBER SOLUTIONS
KERTO-RIPA™
The Kerto-ripa panel is a structural engineered timber building element made from glued Kerto members. It is used to create the ground, intermediate floors and roofs of residential, commercial and public buildings. Kerto-Ripa can be used in both thermoinsulated structures and non-insulated structures.
PrE-FabrICaTED To aChIEvE raPID CoNsTruCTIoN
BENEFITS FOR THE CONTRACTOR • Fast installation – up to 1000m2 of weather protection in one day • Reduces the need for protective covering during construction at the building site • Pre-fabrication ensures even quality • Reduces turnaround time for construction projects • Carefully-timed delivery for the building phase • Clear, long spans • Environmentally sound
TYPES OF PANEL Kerto-Q panel
OPEN PANEL
Kerto-S rib htot
1800mm or 2400mm or 2500mm
Kerto-Q panel
CLOSED PANEL Kerto-S rib
Kerto-Q panel htot
1800mm or 2400mm or 2500mm
Ceiling finish to required spec
CLOSED PANEL INSULATED
Can be designed to meet client requirements
Kerto-Q panel Insulation Kerto-S rib Kerto-Q panel
htot
1800mm or 2400mm or 2500mm
07/0029
Ceiling finish to required spec
0809-CPD-0577
LONG-SPAN ENGINEERED TIMBER SOLUTIONS –
KERTO-RIPA
TM
ROOFING SOLUTIONS Kerto-ripa panels are an ideal solution for flat or low pitch roofs, and can be designed to the client's thermal requirements.
FLAT OR LOW PITCH ROOFS Roof covering to design specification
Its rapid installation (up to 1000m2 a day) provides a weatherproof seal for the building, reducing the need for a protective covering during construction. Long clear spans (up to 18m*) are available allowing buildings to be constructed with fewer columns and beams creating greater design flexibility. *Transportation costs to be considered for spans over 13.5m
Thermal insulation to required depth
Kerto-Q panel
Main frame
Ma x 18 m
Main frame
ROOF PANEL DIMENSIONS MAX SPAN L (mm)
MAX SNOW LOAD (kN/m2) 0.6 1
8000
230
230
9000
275
275
10000
310
310
12000
350
410
13000
410
450
14000
450
500
16000
550
550
18000
650
650
NOTES: EXAMPLE DEPTHS; OTHER DEPTHS POSSIBLE ON REQUEST. FLAT ROOF WIND CONDITIONS APPLIED. FOR OTHER CONDITIONS PLEASE CONTACT OUR TECHNICAL TEAM ON 01205 883 835.
KERTO-RIPA
TM
–
LONG-SPAN ENGINEERED TIMBER SOLUTIONS
FLOORING SOLUTIONS Kerto-ripa panels are also suitable for both ground and intermediate floors delivering clear spans of up to 9m. The panel is pre-fabricated to allow quick and simple installation, easily accommodating coordinated services within the floor zone. For cases where increased acoustic performance is required, The SoundBar System can be added to exceed building regulations.
GROUND & INTERMEDIATE FLOORS Optional Metsä Wood SoundBar acoustic deck shown. Please contact Metsä Wood for more information
Kerto cover strip
to Up
Thermal insulation to required depth for sound and thermal isolation.
FLOOR PANEL DIMENSIONS MAX SPAN L (mm)
MAX LIVE LOAD (kN/m2) 3 4
4000
230
230
5000
310
350
6000
350
350
7000
350
450
8000
500
550
9000
550
650
NOTES: EXAMPLE DEPTHS; OTHER DEPTHS POSSIBLE ON REQUEST. BASED ON 2.5KN/M2 DEAD LOAD. FOR OTHER CONDITIONS PLEASE CONTACT OUR TECHNICAL TEAM ON 01205 883 835.
n spa 9m
KERTO® CHARACTERISTIC VALUES 5TH PERCENTILE VALUES SYMBOL
KERTO-S
KERTO-Q (27-69MM)
fm,0,edge,k s fm,0,flat,k
44.0 0.12 50.0
32.0 0.12 36.0
N/mm2
ft,0,k ft,90,edge,k
35.0 0.8
26.0 6.0
N/mm2 N/mm2
fc,0,k fc,90,edge,k fc,90,flat,k
35.0 6.0 1.8
26.0 9.0 2.2
N/mm N/mm2 N/mm2
fv,0,edge,k fv,0,flat,k
4.1 2.3
4.5 1.3
N/mm2 N/mm2
E0,k
11600
8800
N/mm2
Edgewise stability design only
G0,k
400
400
N/mm2
DENSITY connection design only
Þk
480
480
kg/m3
SYMBOL
KERTO-S
KERTO-Q (27-69MM)
E0,mean
13800
10500
N/mm2
Edgewise deflection design
G0,mean
600
600
N/mm2
DENSITY weight and loading
Þmean
510
510
kg/m3
PROPERTY BENDING STRENGTH
Edgewise Size effective paramater Flatwise
N/mm2
TENSION STRENGTH
Parallel to the grain Perpendicular to the grain edgewise COMPRESSION STRENGTH
Parallel to the grain Perpendicular to the grain edgewise Perpendicular to the grain flatwise SHEAR STRENGTH
Edgewise Flatwise MODULUS OF ELASTICITY
Parallel to the grain stability design only SHEAR MODULUS
MEAN VALUES PROPERTY MODULUS OF ELASTICITY
Parallel to the grain deflection design SHEAR MODULUS
ACOUSTIC VALUES
FLOOR FINISH
PROPERTY
DRY SCREED SYSTEM
CONCRETE SCREED SYSTEM
SOUNDBAR SYSTEM
250mm Ripa element
--
Ln,w = 70 Rw > 50 *
--
250mm Ripa element 27mm Resilient bar 12.5mm Palsterboard
Ln,w = 54 Rw > 65 *
X07 / X08 Ln,w = 48 (-2;4) Rw = 77 (-15;30)
X09 / X10 Ln,w = 45 (-2;8) Rw = 77 (-15;31)
275mm Ripa closed Panel
--
Ln,w = 68 Rw > 54 *
X13 / X14 Ln,w = 68 (-1;-1) Rw = 54 (-1;9)
NOTES:
Report number 168 35407.X Ln,w (C-l, 100-2500; C-l, 50-2500) in dB Rw, (C50-5000; C-tr, 50-5000) in dB
Qualitied values: Ln,w in dB, Rw in dB
*Acoustic performance assessed
KERTO®
Manufactured by Metsä Wood since 1975, our Kerto is a unique product which not only serves as the flange material for our (FJI) I-Joists but is the perfect choice for long spans, rimbeams, lintels and high-load structural applications. Kerto has BBA certification and PEFC environmental accreditation.
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4
5
PEFC/16-37-006 KErTo CErT: No 00/3717
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8
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Promoting sustainable forest management for more info: www.pefc.org
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Kerto is produced from rotary-peeled 3mm graded softwood veneers, which are then glued together to form a continuous 1.8 or 2.5 metre wide product. The 21mm to 90mm thick billets are then further machined to the finished dimensions.
1 Sawing
5 Gluing
9 Rip-sawing
2 Rotary Peeling
6 Layup
10 Despatching
The result is an engineered wood product that maintains the natural beauty of wood whilst being strong enough for most types of construction applications.
3 Clipping
7 Hot Press
4 Drying
8 Cross-cutting
There are two key types of Kerto:
KERTO-S
KERTO-Q
WITH LONGITUDINALLY LAID VENEERS
WITH CROSS LAID VENEERS
Produced so that all its veneers are laid in the same direction, Kerto-S delivers a product perfect for beams whatever the specification and for achieving long spans with minimal deflection.
Produced in a similar way to Kerto-S but with approximately 20% of its veneers laid crossways, Kerto-Q delivers exceptional dimensional stability and performs well where high compression strength is required. Kerto-Q is ideal as a rimboard in timber frame construction.
LONG-SPAN ENGINEERED TIMBER SOLUTIONS –
KERTO-RIPA
TM
For more information visit www.metsawood.co.uk or call our technical team on 01205 883 835. Metsä Wood is a wood products company delivering service-oriented solutions developed in collaboration with its customers. Its premium solutions are based on ecological, high quality Nordic wood as a raw material. Wood is the only building material that is truly renewable, if well managed. Forest certification schemes give assurance that the timber is legal and from sustainable sources. Metsä Wood sources certified timber over uncertified and is an approved Chain of Custody supplier. MW0023 Mar 12. The photographs in this brochure are for illustration purposes only. Metsä Wood reserves the right to change the range without notice. Every effort has been made to ensure that colours are accurate within the limitations of natural lighting conditions and the four colour printing process.
METSÄ WOOD Telephone: +44 (0)1205 883 835 Email:
[email protected] www.metsawood.co.uk
MW 0023 MAR 12
