Danish Greenhouse Supply A/S Assensvej 332 , Tommerup , DK-5690 Denmark About Solutions products Companies Danish Greenhouse Supply A/S Products Blackout with Aluminium Upper Layer Blackout with Aluminium Upper Layer From Blackout system 0 Share The aluminium upper layer reflects sunlight but retains heat at night. Choosing a white under layer intensifies supplemental lighting. Customer reviews No reviews were found for Blackout with Aluminium Upper Layer. Be the first to review! Add your review Publish your review Great! review successfully added!