Page 8 - 2020 Sustainability report DOW Thailand Group

Collaborations to protect the climate

Innovative environmentally friendly sprayed roof insulation
Dow has collaborated with a Japanese roof insulation expert, Toyokoh, to launch innovative and
eco-friendly roof insulation, Sosei, which is applied by spraying directly on the rooftop. The solution is
designed to meet the humid climate in Thailand and the ASEAN region. The sprayed insulation is seamless and
can protect against heat effectively, resulting in energy saving from making the building cool. Utilizing Japan's
experience of facing frequent severe storms, the innovation can prevent water from leaking, reduce noise,
and improve roofs' durability. Moreover, it can be applied from the outside without affecting indoor activities.
The sprayed insulation addresses the need for roof renovation without activity interruption, such as the roof
of factories, hospitals, and warehouses.
Sosei eco-friendly solution is 3-layer insulation sprayed directly onto roof tiles. It utilizes Dow's innovative
VORACOR™ polyurethane foam and Dow's HYPERLAST™ waterproof coating, followed by a color coating
layer, resulting in excellent thermal protection properties. In comparison, the average temperature underneath
this roof insulation is 8-15 degrees Celsius lower than conventional roofs. Moreover, it does not cause global
warming because of its zero Ozone Depleting Potential (ODP) and a very lower Global Warming Potential
(GWP) than the typical foaming process. "Toyoko" is Dow's first partner to apply this innovation in Thailand
and Southeast Asia.

8 2020 Sustainability report