Very happy and I am about to purchase more secondary double glazing plus some polycarb replacements for that greenhouse. A 20mm translucent standing seam polycarbonate system. Suitable for translucent canopies and walkways. Minimal Emissivity (Lower E) glass is a skinny metallic coating applied to the glass area. It demonstrates heat https://tweezers-with-fine-tips57706.spintheblog.com/35142539/considerations-to-know-about-heat-loss-prevention