A building can provide food and present a habitat for termites. Termites need cellulose for digestion but not all building materials have this essential ingredient.
The types of building materials being used can be classified into excavation, concrete works, brickwork and block work, drainage and underground pipe duct, waterproofing, stone work, roof tiling, wood works, ironmongery, steel and metal works, plastering and paving, mechanical installations, electrical installations, communications, security and control systems, glazing, painting and landscaping.
For the purpose of this discussion these seventeen types are further sub-classified into hard materials: concrete works, brickwork, marble and granite, structural steel, wall claddings, suspended ceilings, curtain walling, pipework, gutter, ductwork, glazing, acrylic and polycarbonate sheet and glass wall lining. And a second subdivision for non-hard materials: timber formwork, sheet membrane waterproofing, felt roofing, structural timber, flooring, doors, frames and linings, furniture, fittings, shelving racks, playground equipment, insulation material, conduit and cables, paperhanging, turfing, planting and boulders. The non-hard materials are usually susceptible to termite attack although hard materials can also be at risk.
Shore D hardness which is a measurement for the resistance of a material against penetration of a needle under a defined force. It is determined as a digit from 0-100. The higher the number, the higher will be the hardness of the material.
Higher the Shore D hardness more resistant it is to attacks from Termite. The shore d hardness of uPVC is 80 hence making Plasowin uPVC doors & windows Termite proof.