Which is the best sill insulation?

[Nygge72]

The image is a bit unfair. Probably to clearly simulate the rubber's position. When the sill is anchored, it sinks down and becomes super tight. These work really well.

It's important to buy the right size so it matches the frame's dimensions.

What is the advantage of these compared to LDPE? Just trying to understand the differences. And how do you attach this? Do you nail it directly onto the sill, or?

 

[Plupp 382478]

Rubber VS plastic.
Rubber is well known for sealing. There are certainly more detailed differences, outside of my expertise.

I have not only used it on baseboards but also under thresholds in the basement where there was a lack of space for insulation. Used it in car interiors between metal-metal, metal-wood so no squeaking occurs, just because "I had it at home" but still.

It should just be rolled out and the baseboard placed on top, but I have stapled it in the middle during block assembly and then raised the wall so it works as long as the wall doesn’t slip forward or backward and crumple. Then you have to lift and adjust.

 

[Nygge72]

Rubber VS plastic.
Rubber is well known for sealing. There are certainly more detailed differences, outside my expertise.

I have used this not only on beams but also under thresholds in the basement where there was no space for stuffing. Used it in car interiors between metal-metal and metal-wood to prevent squeaking, admittedly just because "It was available" but still.

It should only be rolled out and the sill placed on top, but I have stapled it in the middle for block assembly and then raised the wall, so it works as long as the wall does not slide forward or backward and crumple. If it does, you have to lift and adjust.

Yes, I'm thinking I'll raise an entire wall at once, so I thought I should be able to staple it down at the edges (outside the protrusions) as well as in the middle so it should stay in place without wrinkling?

 

[Plupp 382478]

Yes, I'm thinking of raising an entire wall at once, so I thought you should be able to staple it at the edges (outside the elevations) and in the middle, so it should stay in place without wrinkling?

Absolutely! Good luck!

 

[Nygge72]

But if you are going to have a west coast board on the outside, should this sill insulation also cover it? Or is it enough to just place it on a protection for mice, for example, and the sill insulation only covers the sill?