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Posted by willshak on September 26, 2007, 9:27 am
on 9/26/2007 8:57 AM beerguzzler50@yahoo.com said the following:
>
>> EXT wrote:
>>
>>> Personally, I would (and have done it this way) drill all the way through
>>> the concrete foundation and run long bolts, or threaded rod, bolting your
>>> ledger board to the wall. This way anchors cannot slip out if they don't
>>> have a good purchase on the concrete. Remember to insert spacers between the
>>> concrete and the ledger board, so that the bolts run through the spacers so
>>> that the ledger has an air space between it and the concrete. This will help
>>> keep it dry.
>>>
>>>
>>>> I am building a PT deck attached to my house and have a question about
>>>> attaching the deck ledger board. Most everything I have read talks
>>>> about connecting it to wood, not concrete.
>>>>
>>>> Here's what I was thinking of doing. All my joists are going to be
>>>> 2x8, so I was going to use 2x10 for the ledger board. I am going to
>>>> run 2 lapping strips of Grace Vycor ledger/flashing (it is like ice/
>>>> water shield, only 9" wide) under the siding and ledger board. Then I
>>>> am going to drill into the concrete and use 1/2"x5.5" RedHead wedge
>>>> (hot dipped galvanized) anchors--2 of them in every other joist bay
>>>> (16" OC). Next I was going to use vinyl deck ledger flashing since I
>>>> have heard that aluminum won't last well with the PT.
>>>>
>>>> I want to do this right and have it last...am I on the right track?
>>>>
>> Hi,
>> And flashing just to be sure to keep water away.
>> That's what I did when built a deck.
>>
>
> Why space the ledger out from the wall? If it for moisture, isn't
> that what the flashing accomplishes. Good idea on the stainless wedge
> bolts. I would think that if the ledger is spaced out, you loose the
> strength of the ledger being up against a solid surface and are now
> just relying on the actual bolts.
Depends upon how high off the ground the deck sits. The deck I had
before it was torn up for a sunroom was no more than 18" off the ground.
The posts were 3' into the ground and it was not attached to the house
at all. No need for a ledger or flashing. The siding wasn't even
removed, so the rain and snow melt just ran down between the wall and deck.
--
Bill
In Hamptonburgh, NY
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