Walls and braziers are way too soft and they are easy to destroy by high-humours player so i've got idea to add quality do walls and braziers.
Soak for single segment of wall (stone hedge) is 15 (via wiki). So 15 is base amount of soak for 1.00p segment of wall. If we build this part of wall with high purity resources like dross we should be able to get higher purity of wall.
For example if we will use p10.0 dross and p1.00 granite we should be able to get average around p8.00 wall with soak 15x8=120 Soak. It will be hard to obtain but it will be worth to do too.
Braziers do average 3BB damage per second with p1.00. Like above, we should be able to raise theirs damage by using high purity iron bars. So if we will use p8.00 iron bars we will obtain brazier which do average 3x8=24BB damage per second. It will be great for players who don't spend all days to grind iron for endless amount of braziers on their homestead. They could buy iron for few high purity braziers instead.