Can a ledger be installed even if the house's 2x10 is only one single thickness?
100% normal. The Code doesn't provide a description for this connection other than to 'ensure that framing members are securely attached'. Best thing is hot dip galvanized lag screws & washers in pre-drilled holes. Important to check is that the rim joist is solid & not rotted due to poor building envelope detailing.
Yes Stephane. Single rim joist is very common. Galvanized lag screws or structural screws with the same load bearing capacity will be required to fasten the rim board to the house. Flashing and properly waterproofing the connection between the ledger and the rim board is important as well. Please reach out to me if you have more information.
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