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Heat, noise, climate and how uPVC systems behave in Indian conditions.
Radiation, conduction and air leakage are three different problems with three different fixes. Where the heat actually enters, and what stops it.
Traffic noise is a sealing problem before it is a glass problem. Gaskets, laminated interlayers and realistic expectations.
Most efficiency literature comes from cold climates where the problem inverts. What actually reduces cooling load, and what is worth paying for.
Hot-dry, coastal, temperate, hill and high-rainfall regions each demand something different. The frame stays the same; everything around it changes.
Salt air leaves the profile alone and attacks everything metal in the assembly. Where coastal windows actually fail, and how to specify around it.
Wind-driven rain finds the weakest seal in the wall. How drainage channels are meant to work, and why they are the first thing to check.
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