HTG Supply 4 Foot IR Blocker Heat-Insulated DIY Grow Room Fabric (4 Foot x 50 Foot)

Block-IR infrared heat shielding keeps the heat where it belongs! Block-IR consists of two layers of infrared-blocking material bonded with polyurethane, which surrounds a core of non-conductive insulation. When sealed with foil tape, it creates a barrier that locks the heat and infrared light in. Rolls are 4ft wide.

DO IT YOURSELF: A DIY grower favorite – get creative and build your own custom grow tent/room
LOCKS IN HEAT & LIGHT: When sealed with foil tape, it creates a barrier that locks the heat and infrared light in
HEAVY-DUTY MATERIAL: Block-IR consists of two layers of infrared-blocking material bonded with polyurethane, which surrounds a core of non-conductive insulation
HOW TO USE: Staple to 2′ x 4’s and cut holes for ventilation with ease
PRODUCT SPECIFICATION: Comes with (1) roll of 4′ wide blackout canvas. Comes in 50′ or 100′ long rolls.