Nell
It’s the glue, obviously. Specifically, the solvent-based adhesive they use to bond that abysmal beige polyester filth to the concrete subfloor. It’s not just sticky; it’s a chemical hostage situation. The solvent evaporates, leaving behind this incredibly rigid polymer matrix that grips the carpet backing with the strength of a frightened octopus. And you know what’s in it? Toluene. Or something like it. Probably benzene actually, because who cares about safety? The trick is the tack. It has to be tacky enough to hold the corner down when you kick it, but flexible enough so it doesn’t crack when the building settles. Which it always does. That’s why you smell it. It’s not the carpet dying; it’s the adhesive slowly realizing it’s trapped in a windowless room with a radiator that hasn’t worked since 1998. It’s a battle of evaporation rates. If you get the viscosity wrong, the whole thing wrinkles. Like a drapes made of despair.