A 2 month old deck that was installed by a home owner and subsquently had major structural problems.
Hard to see in this picture but the cedar deck boards are not secured at every joist with 2 screws per joist. In some cases there are only 6 screws in a 10' board when there should be 48+. This will lead to major twisting, cupping and bowing of the deck surface.
The 4x4 post for the second floor deck in the picture is not plumb vertically. It had to be removed from a hole 5 feet deep and it was in concrete and a new post intalled.
The beam is buried in the ground when at minimum it should be on deck blocks but preferably on concrete piers. This major structural weight bearing point will therefore fail much sooner due to sitting in wet earth. The joists are not attached to the rim joist and where attempts were made in some areas to attach them, the screws missed the joists completely.
The ledger board was not attached to house correctly. The board was not level and the anchor screws were not tightened completely.
The joist hangers did not have the nails completely hammered in and there should be 6 nails per joist hanger. Some only had 4 or even 2!!
That is why there is a permit process to ensure decks are installed correctly to ensure a homeowners safety and subsquent owners of the home know they have a well built product. Home owners should always understand and inform themselves of how to complete a project correctly. Lots of advice out there for DIY handy person, you just need to track it down.
Dave - 360renos
No comments:
Post a Comment