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Product information

wedi building boards have a blue core made from CFC-free extruded polystyrene rigid foam. This makes the wedi building board an ideal basis for any type of plaster and tile. wedi building boards can be applied to practically any substrate, they are waterproof, insulating, versatile, light and robust.

These large building boards stand out because of their distinctive width, of up to 1.20 m. This means that the XL and XXL building boards are easy assembly with all the benefits of the classic wedi building board such as being light and easy to handle, despite their size. Simple to assemble and big in quality.

  • The blue XPS core is 100% waterproof and remains fully functional even after possible damage.
  • abP*: building board butt joints can be 100% sealed, simply by using wedi 610. Because no other seal is required, craftsmen will benefit from increased security and a shorter tiling time.
  • The cemented surface is a good adhesive under-surface. The fibre fabric also absorbs tensile forces.
  • All building board systems have great heat insulation properties,

Energy efficient

Excellent thermal insulation properties even at low strength
Hygienic icon

Hygienic

Protection against mold and fungal growth

Field-tested

The original pioneers, successfully leading the way for 40 years

Reliable

100% Waterproof from 2mm thick XPS core

Fast

Balances uneven walls, directly tileable

Technical Details

Technical data of building board XL & XXL
Sound insulation DIN EN ISO 140-3 (at board thickness of 12.5 mm)Rw, P 23 dB
Fire behaviour EN 13501E
Bending stress based on DIN 532933900 kPa (mean value)
Adhesive tensile strength0,28 N/mm2
Weight: wedi building board (1250 x 600 x 4 mm) wedi building board XXL (2500 x 1200 x 50 mm)2,7 Kg 13,8 Kg
Linear coefficient of thermal expansion0,017 mm/(mk)
Technical properties – Rigid foam
Long-term compressive strength (50 years) ≤ 2% compression EN 16060,08 N/mm2
Compressive resistance or compressive strength at 10% compression EN 8260,25 N/mm2
Associated modulus of elasticity EN 82610 –18 N/mm2
Thermal conductivity EN 131640,036 W/mK
Tensile strength EN 16070,45 N/mm2
Shearing resistance EN 120900,2 N/mm2
Shear modulus EN 120907 N/mm2
Bulk density EN 160232 kg/m3
Resistance to water vapour diffusion(μ) EN 12086100
Water absorption under long-term immersion EN 12087≤ 1,5 Vol.-%
Capillar action0
Linear coefficient of thermal expansion0,07 mm/mK
Temperature limits-50°C / +75°C
Fire behaviour EN 13501E
Propellant gas, carbon dioxide, GWP value1
  • Design surface Top Wall all colors
    wedi Top Wall
  • Flush-to-floor shower Fundo Integro
    Fundo Integro
  • Flush-to-floor shower Fundo Integro
    Fundo Plano
  • Flush-to-floor shower element Fundo Primo
    Fundo Primo
  • Shower element Fundo Ligno Plus for suspended timber floors
    Fundo Ligno Plus
  • Corner shower point drainage
    Fundo Borgo
  • Round shower Fundo Trollo
    Fundo Trollo
  • Snail shower Fundo Nautilo
    Fundo Nautilo
  • Shower element wedi solso
    for wedi Solso
  • Fundo Plano Linea
    Fundo Plano Linea
  • Fundo Riolito Neo
    Fundo Riolito Neo
  • Fundo Riolito
    Fundo Riolito
  • Fundo RioLigno
    Fundo RioLigno
  • Fundo Riofino
    Fundo Riofino
  • Fundo Discreto
  • wedi building board
    Building board
  • Vapor building board
  • Construct building board
  • Preline building board
  • Shower vandal module with and without niche
    Sanwell shower wall module
  • Shower screen with and without niche
    Sanwell wall elements
  • Bathroom niches wedi sanoasa
    Sanwell niches
  • Angle unit for pipe cladding
    Mensolo L and U angle unit
  • Bathtub cladding wedi Bathboard
    wedi Bathboard bath and shower tray cladding
  • wedi I-Board:
    wedi I-Board and wedi I-Board Plus WC dry wall installation cladding
  • wedi Subliner Dry
  • Subliner Dry and Flex
  • Subliner Flex
  • Tiled bathtub Sanbath
    Sanbath Wave bathtub
  • Sanoasa floating bench
  • Sanoasa bench 1-4
  • Sanoasa corner seat element
  • wedi Sanoasa Comoda
  • wedi Sanoasa Bellina
  • Sanoasa lounger 4
  • wedi Tools edge insulation strip
  • wedi 320 universal tile adhesive
  • wedi 360 flexible medium-bed mortar
  • wedi 610
    wedi 610 adhesive sealant
  • wedi 620 sealant
  • wedi 520 sealant
  • wedi Tools wall sealing set
  • wedi Tools sealing tape, corners and sealing gaiters
  • wedi Tools joint reinforcement tape
  • wedi Tools cut-resistant tape
  • wedi Tools washer
  • wedi Tools metal dowel
  • wedi Tools cavity dowels set
  • wedi Top Wall installation set

Downloads

abP building board and Fundo with Ardex X77
 
abP building board and Fundo with Kiesel
 
abP building board and Fundo with Mapei
 
abP building board and Fundo with PCI
 
abP building board and Fundo with Sakret
 
abP building board and Fundo with Schoenox
 
abP building board and Fundo with wedi 320
 
abP wedi 520
 
Application guidelines wedi building boards - wall and floor apllications
 
Building Board DIN EN 13501-1 Klasse E MPA - fire behaviour classification
 
Building board XL 100 mm, 2600 x 900 x 100 mm
 
wedi certificate BBA building boards
 
Brochure - Bathroom inspiration
 
Brochure - Modular construction
 
Brochure - Tips and tricks for wall solutions
 
Brochure - wedi world of systems
 
DOP Declaration of performance - wedi construction panel / Fundo sealing system
 
ETA Denmark - test certificate
 
ETA test certificate
 
M1 emissions classification for building materials
 
Certificat - GEV EMICODE for wedi 610 Joint Sealant
 
Certificate VOC-regulation
 
Certificate - Environmental product declaration for wedi building board as per ISO 14025 and EN 15804
 
Certificate ISO 50.001 - Energy management system (valid from 2022-2025)
 
ISO 9001:2015 certificate
 

Usage

  • XL and XXL building boards stand out because of their exceptional width up to 1.20m. The XL and XXL building boards bring together all the benefits of classic wedi building boards and are also particularly light and easy to handle, despite their size. Simple to assemble and big in quality.

FAQ

Frequently asked questions about the building board