As long as both thatch and roof structures are at the correct angle water will not penetrate more than an inch 25mm or so.
Thatch roof construction.
Since the bulk of the vegetation stays dry and is densely packed trapping air thatching also functions as insulation.
Thatch roofing is a traditional roofing method that involves using dry vegetation such as straw water reed rushes sedge and so on to create a roof covering.
The binding wire is a part that we can see as chrome nickel wire.
People would have different type of thatched roof materials to applied.
The rod wire shank and hem wire would be used for sewing or screwing the roof.
Thatching is the craft of building a roof with dry vegetation such as straw water reed sedge cladium mariscus rushes heather or palm branches layering the vegetation so as to shed water away from the inner roof.
Thatched roofing has been around for centuries as an effective way to build weatherproof roofing with materials at hand.
It may help the rod wire to create reed layer and keep them together as the sub construction.
Dickie wright from rj wright and son master family thatchers explains the key elements to thatching a roof as he demonstrates his skills at the royal bat.
To this day thatched roofing is still used in green house construction as well as roofing for outside structures such as landscaping huts and poolside cabanas.