Tarp over wall tent

[Bhoesl]

For those of you who use a tarp over top of your wall tent, do you put the tarp directly over the canvas at the top, or do you rig up something along the ridge to maintain a gap between the tarp and the canvas?

 

[glass eye]

For those of you who use a tarp over top of your wall tent, do you put the tarp directly over the canvas at the top, or do you rig up something along the ridge to maintain a gap between the tarp and the canvas?

I don’t use a canvas tent but I do set up a tarp above my tent even though it has a rainfly.
A gap between the tarp and tent will keep it cooler in the heat and drier in the rain.

 

[undercover]

Condensation forms on tent walls and ceilings and if a tarp presses directly against the fabric, moisture can transfer through and soak your gear,
if you’re using a tarp only as extra rainfly reinforcement in a downpour and have zero cordage or anchor points, direct contact is better than no cover at all — but treat it as a last resort, not the plan.

 

[Bhoesl]

I understand about condensation. I guess maybe I didn’t explain my question properly. I definitely plan to keep the tarp tied off higher along the side walls, leaving an air gap. My question was about along the ridge, if people just pass the tarp directly over the ridge of the tent, or if I should come up with a support / spacer of some kind to run along the top of the ridge to maintain that air gap.
Hopefully that makes sense, I can picture the idea in my head but not sure I’m explaining it well.