[Pontiac]

The slate was found to the rear of one of the houses which was made from wattle.

Wattle : a fabrication of poles interwoven with slender branches, withes, or reeds and used especially formerly in building

I was not familiar with the word.

[tet68]

Wattle and daub construction, where a wall made of interwoven reeds or limbs are covered with mud.

[SunkenCiv]

Apparently there’s a whole canal full of wattle, the wattle canal, huge battle was fought there in WWII.

I’d often wondered what wattle, of wattle and daub, was. Sometimes, rather than using mud, the “plaster” was made of dung, probably because so much was around all the time. They figured out how to treat it so there was no smell. That’s their story anyway.