Clean the roof with alcohol and glue the car with an aluminized heat shield. You can choose the size that best suits your project, you can simply cut the sheet to the shape or size you want to satisfy your different projects. Aluminum foil has low air permeability, especially for oxygen, water vapor and light protection performance, which can form heat reflection, and also has the characteristics of shape retention and stiffness. Embossed Aluminum Heat Shield Automotive 20 X 27.5 High The aluminized heat barrier is made of woven silica with a flexible aluminized surface. Some of the applications include firewall, hoods, hoses, doors and anywhere you want to control heat It is not visible when you are standing on the floor. When gluing, it must be applied in a cool place. Suitable size: 30 x 100 cm, thickness: 0., 8 mm. For the sake of beauty, stick it only on the roof of the car. The aluminized heat shield can adapt to rainy days, sunny days, strong winds, and the aluminum foil is firmly glued, and the effect is remarkable after pasting. Aazon.co: Adhesive Backed Aluinized Fiberglass Heat Sheet Heat Protection Barrier Cover... Its reflective surface can always filter heat and provide the greatest protection. Car Heat Insulation Snapklik.co : 4 Pcs 12 X 24 Aluinized Heat Shield Theral Barrier Adhesive Backed Heat Blanket Thermal Lining