Alain Decorniquet

Waterproofing - Roofing – Cladding Expert


58 years old

Seniority : 2 years, associate


  • Waterproofing
  • Metal roofing
  • Traditional roofing
  • Cladding lightweight facades
  • Photovoltaics

BNTEC: since 2002 – member of the standardization board – NF-DTU standards series
CCFAT (commission in charge of establishing technical notices): member of the specialised Groups 2.2 (cladding), 5.1 (roofing), 5.2 (waterproofing)
QUALIBAT: Member of the waterproofing/tank lining commission from 2009 to 2017
AQC and C2P: CFEC representative from 2012 to 2017
CSFE: President of the National Technical Commission from 2017 to 2021
CEREMA: Member of the “Waterproofing of Bridges and Roads” commission from 2020 to 2021


École Des Mines – d’Alès

Professional background

SMAC – Issy Les Moulineaux
Group Technical & Innovation Director
In charge of technical orientations and innovation
Management of a team of 12 people specializing in the following areas:
– Laboratory dedicated to asphalt
– Lightweight shell Technical Group / Technical Facades / BIM
– Photovoltaic, airtightness, thermal, RE2020 Specialist


Major Risks Director – Management of a team dedicated to high-stakes cases, all technical fields combined
Technical Director – Saretec Group Construction Specialists Department Waterproofing / Roofing / Cladding Specialist – Specialist listed in the Construction Insurance Settlement Convention
Member of the Executive Committee


Normandy Director – Development of all waterproofing and metal cladding techniques
Management of the Cléon asphalt plant – manufacture of low-temperature asphalt Building and civil engineering waterproofing

Key areas of expertise


  • Waterproofing of terrace roofs, all techniques: bitumen, synthetic, SEL (Liquid Waterproofing System), all material: concrete, steel, wood
  • Vegetalisation
  • Asphalt and aggregate coating car parks
  • Wooden decking, concrete protection slabs
  • Tank lining

Metal roofing

  • Complex metal roofs
  • Pathologies related to condensation, thermal bridges
  • Ribbed metal sheets
  • Hot roof, cold roof

Traditional roofing

  •  Tile and slate roofs,
  • Zinc, aluminium, copper and galvanised steel roofs
  • Standing seam roofing
  • Dry profile steel decking

Cladding – Lightweight facades

  • Rainscreen, Ventilated claddings
  • Double-skin cladding on liner trays
  • Complex cladding
  • Metal cladding – cassettes, slat, clapboard
  • Terra cota shingles
  • Façades on Wood Frame Construction
  • Façades on Wood Frame Walls


  • Photovoltaic systems on waterproofing
  • Photovoltaic systems on metal roofs
  • Photovoltaic systems on traditional roofs