| mudflap 2006-06-11, 2:21 am |
| J Geez wrote:
> Is there a material that lays between the foundation and treated sill....or
> is is still common to just lay the sill right on top of the concrete
> foundation?
>
>
It is common (at least one sees it a lot) but for the cost
of a separation layer of plastic or metal...
As far as treated wood, it depends on your local market.
Where I am it used to be quality pine and it was treated
throughout. Them days are long gone and only surface
treated spruce is available now. It's crap.
There IS a dark polyethelene ribbon available for this
and it's cheap. I think it 'may' perforate on cement
particles or under splintered wood so I don't use it.
I used a 6x1/8 ribbon of hard packing foam that came with
some materials and then bolted down the sills. I've also
used 30 gauge stainless flashing under wooden posts on 3
houses now.
Cement products continuously bleed calcium and have some
moisture retention/absortion. It's the moisture that
can migrate to wood and then provide a home for mildew
and assorted rot bacteria.
HTH
|