KEFA Coating Presentation to New York City Transit 2 Broadway January 25, 2007 Robbie Wood and Regis Doucette

KEFA Coating We create dry surfaces We improve the indoor climate Micro porous coatings

KEFA Pedigree On the market for over 30 years Product applied over 400,000,000 sq ft In over 40 countries First application Still working Products are based on 3 patents Developed in co-operation with Swedish, US, UK Universities

What is a KEFA Coating ? A microporous coating Water based Harmless to health Harmless to environment It works forever It works automatically/passively Not a 1-use like intumescents

Some KEFA Benefits KEFA – Condensation Protection KEFA – Mold Protection KEFA – Facade Paint KEFA – Heat Protection ALL NATURAL NON-CHEMICAL

KEFA Coating x 500

Microporous structure provides interesting properties Condensation protection Improves rust protection + detects corrosion Mold remediation Insulates Dries out fresh construction Improves insulation Does not attract dust and dirt Noise damping

KEFA Coatings Speed up evaporation

Dew point with dry periods between condensation periods KEFA Coating requires a cyclic condensation process

Condensation protection Jaeger Arrow

The MP structure provides interesting properties Condensation protection Improves Rust Protection. Detects corrosion Mold Remediation Insulates Dries out construction Improves insulation Does not attract dust and dirt Noise damping

KEFA Coating with sand grain

KEFA Coatings Adsorption/evaporation capacity

Metal KEFA Coating Surface temperature over dew point No condensation, No corrosion

KEFA Coating Metal Surface temperature at dew point Condensation forms on surface Corrosive stage No condensation on KEFA Coating

KEFA Coating Metal Surface temperature under dew point Condensation water dripping from metal The drop is more corrosive than the film.

KEFA Coating Metal Surface temperature under dew point Condensation forms also between metal and KEFA Coating. Condensation water is absorbed and spread evenly in the coat. No corrosive drops

KEFA Coating Metal Surface temperature over dew point

KEFA Coating Metal Surface temperature over dew pooint Dripping stops. Water film still corrosive KEFA Coating surface dries considerably faster than metal surface. No corrosion

KEFA Coating Metal An air stream speeds up evaporation

KEFA Coating Metal An air stream speeds up evaporation KEFA Coating dries very fast

Condensation on Concrete Differs from condensation process of metal Concrete is a poor heat conductor

Concrete KEFA Coating Concrete temperature at air temperature Day. High temperature No condensation

Concrete KEFA Coating Evening. Air temperature sinks No condensation Concrete temperature over air temperature

Concrete KEFA Coating Concrete temperature over air temperature Night. Air temperature sinks further No condensation

Concrete KEFA Coating Morning. Air temperature rises Condensation forms on concrete Condensation forms between concrete and GT Concrete temperature below air temperature

Concrete KEFA Coating Concrete temperature under air temperature Condensation water absorbed by KEFA Coating Late morning. Air temperature rises

Concrete KEFA Coating Concrete temperature at air temperature Condensation water evaporates KEFA Coating surface dries out rapidly Noon. Air temperature rises further

Condensation protection Granary, Germany

Condensation protection Granary Germany

Condensation protection Helicopter Hangar, Norway

Condensation protection Aircraft Hangar, Norway

Rust Protection Water Supply Berlin

Rust Protection Reduced Maintenance Norwegian Ferry

The MP structure provides interesting properties Condensation protection Improves Rust Protection. Detects corrosion Mold Remediation Dries out construction Improves insulation Insulates Does not attract dust and dirt Noise damping

Why avoid mold? Mold looks bad and creates smell Mold is an early step in the degradation process Mold can produce mycotoxins Dangerous to your health

Conditions for growth of mold and other organisms Presence of spores Average over the year >3 000/sqft air Nutrition = all organic material Construction material, dust, dirt, pollen Free water Condensation, construction water, leakage water Time and temperature

Temperature °F 1,0 0,95 0,90 0,85 0,80 0,75 RH= a w High probability Too dry Possible Within 8 weeks Within 4 weeks Too hotToo cold Probability of mold growth Cold bridges increase a w dramatically

Norwegian bakery 2 months after application KEFA Antimold Paint 1 Antimold Paint 1

Norwegian bakery KEFA 2 years after application

Example

What Kefa Does Not Do

Kefa Also Does Not Cost extra money over time Require extra coats of coating every year And we do not work as designed if Kefa is top coated by any other coating that would bury our special coating underneath, thereby defeating the purpose of preventing condensation from humid air There are no natural or induced cycles of drying in the environment (e.g. HVAC)

Cycle Is Important !!!

Why Kefa -- ABC’s A lways work—no power, no “one time only” reaction like intumescent coatings, always “on” B eautification– avoid unsightly mold, rust, broken concrete, flaking paint C ost Control from elimination of problems such as recoating requirements, damaged substrates from water, operational interuptions while fixing condensation problem, other….

Berlin Condo

Georgia Steel Building

Berlin Condo (cont.)

Stockholm Subway

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