Spacing on a deck refers to the small edge to edge gap between decking boards not the ends of the boards.
Gap between siding and deck.
In the old days the builder would install the trim bring the siding up to it and caulk the corner.
I have flashed my deck ledger board with that 2 sided copper vinyl stuff.
Smaller gaps also mean less airflow.
Generally an acceptable gap between deck boards is between 1 8 inch and 1 4 inch.
Trim boards that sit on top the siding.
Adjust for the extra 1 16 inch at the interim temperatures.
If there are any gaps between the framing and the deck boards water will collect there and capillary action will then pull it as far into the gap as it can go.
Basically it is an air gap created between the outer wall and the inner wall of a structure.
The nail heads should be driven to the top of the siding only and not below where visible product fibers can be seen.
Adhesive flashing over the top of the framing helps protect the framing and seals around the screw holes but it potentially makes things worse for the decking.
Without the right deck spacing the boards may expand cup and buckle out of place.
Both sizes have their pros and cons.
While this gap is fairly small it is still a crucial component to any good deck.
3 16 gap at butt joints between horizontal sections and where the siding meets doors windows and corner trim.
When temperatures are between 40 f and 75 f leave 1 4 inch gaps.
The eighth inch spacing provides for a safer surface for walking.
Leave a gap between the decking board closest to the house and.
Now i realize that i need to leave a 2 minimum gap between decking and hardiplank siding which means 2 of gray vinyl flashing will be visible.
On most new homes the trim goes up after the siding is installed which creates a large gap that should not be caulked.
Siding for deck builders reusing what you remove keeps the job green and saves the trouble and expense of matching the finish.
Smaller gaps mean fewer trip hazards or opportunities for high heels or a child s fingers to get caught in the cracks.
By putting up an external siding wall and stepping it off from the inner wall by even as little as 3 8 of you prevent the outside moisture from ever reaching the inside wall in the first place.
Anchor deck joists to the ledger with joist hangers filling each hole with galvanized joist hanger nails rated for pressure treated wood.
This keeps the siding out of debris that may collect in the inside corner of the flashing and prevents mold from growing on it.
Below 20 f go for 3 8 inch gaps.