busdiver
Well-known member
what are these shaped bits for, always wondered....?? :?
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- Thread starter busdiver
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tomedwar72
Well-known member
They let any trapped water drain from the inside sill cavity. Water shouldn't get in there by rights but condensation builds up eventually, leaky/rusty window seals/apertures could let water run down inside of panel and find its way into the lower sill.
You can use them to squirt a bit of cavity wax into the inner & outer sill (with the thin extension on rattle can wax).
HTH
You can use them to squirt a bit of cavity wax into the inner & outer sill (with the thin extension on rattle can wax).
HTH
busdiver
Well-known member
thought that might be the answer, but when you usually only see a rusty edge it's not normally apparent, nice idea but probably answers why so many sills rot from the inside out. they get blocked or painted over
