Tulex
Solar Addict
Putting up 3 separate panel batches on 3 different roofs, each will have 2 rows of 7. Using Unirac system. The clamps to mount the panels are U shaped, one inch wide with about a 3/16" lip on each side.
So, side to side spacing is fixed to the clamp. I assume expansion isn't an issue, as the rails will expand just the same.
But, when searching for how much gap to leave between rows, there are multiple sites that say 4-7 inches for expansion. That makes no sense, at least not for expansion, as nothing expands that much, and most images of installs have nowhere near that much space.
So, what is the minimum gap I should have between rows? Being in NY, snow is an issue. My thought is that the larger the gap, the more room for snow to gather/get a foot hold. Maybe that isn't the issue I think it will be?
So, side to side spacing is fixed to the clamp. I assume expansion isn't an issue, as the rails will expand just the same.
But, when searching for how much gap to leave between rows, there are multiple sites that say 4-7 inches for expansion. That makes no sense, at least not for expansion, as nothing expands that much, and most images of installs have nowhere near that much space.
So, what is the minimum gap I should have between rows? Being in NY, snow is an issue. My thought is that the larger the gap, the more room for snow to gather/get a foot hold. Maybe that isn't the issue I think it will be?