GAINA’s ceramic beads reflect the sun’s infrared rays, allowing the GAINA-coated surface to adapt to the surrounding temperature and minimize heat transfer.

Less humidity, comfortable living…even in the summer months!

Painted area:
walls/ceilings – about 415.1m2 (4,467 sq. ft.);
roof (waterproof roofing) – about 160m2 (1,722 sq. ft.);
exterior – about 175m2 (1,884 sq. ft.)

This couple built a house resembling a resort cottage in Aichi Prefecture. They painted GAINA on the exterior as well as on the interior walls and ceilings. The first thing the couple noticed was how refreshing the air was in the new home.

“The air is not humid at all, even without the use of an air-conditioner; the house is very comfortable! Even the dehumidifying crystal packs we placed in the closets remain dry.”

say the owners. The combination of GAINA’s permeability and natural wood create a refreshing atmosphere. The insulation effect was greater than expected as well. In their previous home, the couple suffered during the hot and humid summers, but now they rarely need to turn on the airconditioner.

“Every day is so comfortable, thanks to GAINA!”

says the satisfied couple.

Cooler houses, reduced need for air-conditioners!

Many people have benefitted from GAINA’s insulation performance. “It was so hot, we needed air-conditioning 24-hours a day,” says one Tokyo resident. When a friend recommended GAINA, which offers superior insulation without complicated construction, this owner decided to his roof and exterior walls. Now his house is surprisingly cool. A resident of Shizuoka Prefecture says,

“I don’t feel the heat as much during the summer.”

A home-owner in Aichi Prefecture, who couldn’t stand the heat on the second floor of his house, says,

“There is no major temperature difference between the first and second floors anymore. I can just open the windows and it feels cool.”

One Ibaraki Prefecture resident measured the temperature of his roof after applying GAINA. He comments,

“I was surprised to see that the temperature dropped more than 28°C(82°F).”

GAINA’s heat prevention mechanism

The sun’s infrared rays repeatedly reflect off, bend around, and move around GAINA’s ceramic beads, reducing the amount of energy entering the house(see the picture above: left hand side). The heat prevention materials in the ceramic beads also reflect infrared rays (see the picture above: right hand side).

GAINA prevents external heat generation, cooling internal temperatures

Air-conditioning improves with internal GAINA coating

Even when the room temperature is low, if the temperature of the ceiling and walls are high, heat can permeate inside. With an internal coat of GAINA, cool air from the air conditioner and GAINA-coated surfaces immediately adapt, keeping heat transfer to a minimum. (Same mechanism as Interior coating improves heat retention described above)

Sensory temperature drops with internal GAINA coating

In the room on the left,
when room temperature is 20°C (68°F) and wall/ceiling surfaces are 40°C (104°F), sensory temperature is 30°C (76°F). In other words, 20°C (68°F) + 40°C (104°F) ÷ 2 =30°C (86°F).

In the GAINA-coated room on the right,
even when room temperature is the same 20°C (68°F) and wall/ceiling surfaces adapt to room temperature, sensory temperature remains at 20°C (68°F).

The difference is minus 10°C (18°F). In other words, 20°C (68°F) + 20°C (68°F) ÷ 2 = 20°C (68°F).