The cooperative housing association has hired a carpenter/company to build decks along a row of townhouses from the 1950s. Over these 70 years, decks have long existed, which never needed to be anchored in the building's foundation. The carpenter wanted a support beam attached to the foundation, but I was hesitant - maybe the simplest method, but is it appropriate? It turned out the carpenter couldn't attach a support beam due to the porous foundation that just crumbled. Apparently, the outer layer of the foundation was harder, so there they could attach with shorter screws - so the carpenter chose to fasten joists directly to the foundation, using some sort of angle brackets.
I would never have screwed into this porous wall, and never chanced that the thin hard outer layer of the foundation will hold when 12 people are having a party on the deck. Yes, there are pre-cast concrete blocks, but these are quite a distance from the attachment in the foundation. (maybe 2 meters out)
Consideration 2, apparently, the carpenter is laying every other plank upright, i.e. the grain of the plank lies differently. I have learned that the plank should be able to warp, so that it forms an arch, for water drainage, but apparently, they deliberately lay every other one for better water drainage - completely incomprehensible to me!
Comments? What is the alternative to screwing into the foundation? (it's about 30 cm from the ground to the top of the joist)
I would never have screwed into this porous wall, and never chanced that the thin hard outer layer of the foundation will hold when 12 people are having a party on the deck. Yes, there are pre-cast concrete blocks, but these are quite a distance from the attachment in the foundation. (maybe 2 meters out)
Consideration 2, apparently, the carpenter is laying every other plank upright, i.e. the grain of the plank lies differently. I have learned that the plank should be able to warp, so that it forms an arch, for water drainage, but apparently, they deliberately lay every other one for better water drainage - completely incomprehensible to me!
Comments? What is the alternative to screwing into the foundation? (it's about 30 cm from the ground to the top of the joist)
To question 1, I answer, plintar.
To question 2, I answer, därom tvistar de lärde. There are a bunch of threads on this forum.
Stickan
To question 2, I answer, därom tvistar de lärde. There are a bunch of threads on this forum.
Stickan