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Posted by willshak on September 26, 2007, 10:26 am
on 9/26/2007 9:56 AM beerguzzler50@yahoo.com said the following:
>
>> on 9/26/2007 8:57 AM beerguzzle...@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
>> To email, remove the double zeroes after @
>>
>
> My deck will be about 3.5 feet above the ground.
>
>
My deck (18" above ground) was erected by me. It was 20' x 18', all PS
lumber, and I had 12 PT 4x4 posts buried 3' in the ground (3 rows of 4,
and no concrete).
All the joists were 2 x 8 16" OC and the ledger end, rim and end joists
were 2 x 10s. It was there for about 18 years and never moved up,
down, or away from the wall..
At 3.5' feet high, I would suspect that you wouldn't have any racking
either. However, it would depend upon what your building inspector wants.
--
Bill
In Hamptonburgh, NY
To email, remove the double zeroes after @
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