We borrowed a rather ancient-looking sand blaster on the advice of a neighbour, even though every instinct screamed against using such a thing on wood. Having done some research, we got fine-ground nutshells as the blast media, as well as fine sand to use on stone walls. The reasoning was that sanding every beam by hand is an extremely slow process, and it's difficult to get old plaster out of cracks and pits. So, only one way to see if the neighbour was right.
|I never knew this is what a sand blaster looked like.|
|Six-metre oak beam spanning kitchen, before.|
|And after cleaning with ground nut shells.|
After this success, I collected and sieved the material to reuse on the beams in an adjoining room. Maybe not the smartest, as the now dust-loaded material basically created a smoke screen that was neigh on impossible to see through. Well, that and blasting parts of old clay plaster. The results were ok though.
|Left: before. Right: after.|
In other news, the guys are back putting paper lining inside the roof as preparation for the cellulose insulation getting blown in.
And after rerouting some piping at the back of the house, the water issue in the cellar seems to have abated, while the roof water issue has been discovered and will be soon resolved (it was driving rain getting behind flashing, as the dormers are not plastered yet.