plz send pic to relate better n glass or transparent acrylic sheets would do the job, giving justice to grass as well. glass n heavy stuff as roof on lawn is subjective to location space n relevance as it needs proper support n frame work. might come with alternative once actual site is known. plz send pictures. thanks shradha shah beescheese design

HDF is High Density Fibreboard as opposed to MDF which is medium density fibreboard. If sealed properly it can be used outdoors as panels set within hardwood frames. Better still is marine grade plywood

As it's being used in External area few materials that can give similar look & feel 1 ) Wood finish ACP panel 2)Wooden logs with PU coating ( Expensive) 3) Wooden coated Allumnium pipe sections 4) wood finish All weather Shera boards

There is nothing special about Kerala climatic conditions that require anything special (yes, I have several years experience with kitchen cabinets there). You can use BS 710 or 303 plywood with laminate on them with excellent results. Several interior firms also use HDF/MDF with laminate without much complaints from their clients.