Roof screws

[beartoothclimb]

I'm going to mount my solar panel using a couple thin L-braces on my ocelot. Im wondering if anybody has re-used their roof screws to mount thin items on top or if they just go longer and/or bigger screws to remount things.

 

[Alley-Kat]

I used NEW larger diameter screws and maybe slightly longer (but, not a lot longer) on my Bobcat.

 

[ski3pin]

I used NEW larger diameter screws and maybe slightly longer (but, not a lot longer) on my Bobcat.

Same here.

 

[Alley-Kat]

And, now that I've had a chance to look at mine, I used NEW holes, as well (left the original roof screws in place).

 

[beartoothclimb]

Thanks! Does anybody know what the stock length/size are so i don't have to pull one and reseal?

 

[marty]

The stock roof screw is a 3/4 # 8 sheet metal screw with a cupped neoprene washer under it. To mount a metal framed solar panel we would use six aluminum L brackets 1 1/4 inches wide with the bottom ear 1 1/2 inches and the ear connecting to the panel would be 2 inches. This way the panel is lifted about an inch above the roof and let the heat escape. The screws we use on the solar panel brackets are 3/4" # 10 screws. Marty

 

[craig333]

When I built my rack (didn't know it was going to hold solar panels at the time) I used one existing screw and one new one on each base. Has worked fine so far.

 

[trailrider]

Marty,

What sealant do you use around the roof screws?

Thanks,
Mike from St. Louis

 

[marty]

Hi Mike,
It is Dow Corning 999-A
Marty

 

[beartoothclimb]

Awesome. Thanks for all the help.