animalmom
Herd Master
You could frame out the shelter in wood, like in @BarnOwl's picture and use the panels I suggested instead of the tin panels. The suggested panels will work well on the roof and sides and are lighter/easier to handle and cut.
As to how tall before they can't jump on the roof... darn good question. We have some shelters that are 4 feet tall and they jump on that. We locate the shelters so they are not close to fencing as we worried about the wee darlings getting on the roof and jumping out. We have one doe that liked to jump on the roof and pop over the fence into the geese yard. She soon discovered that it wasn't all that much fun with the geese. We moved the shelter 4 feet from the fence and she didn't do that any more.
With the slope in the roof, to allow runoff, your goats may decide it isn't much fun to get up on a roof they are going to slide off of... really disrupts sleeping.
As to how tall before they can't jump on the roof... darn good question. We have some shelters that are 4 feet tall and they jump on that. We locate the shelters so they are not close to fencing as we worried about the wee darlings getting on the roof and jumping out. We have one doe that liked to jump on the roof and pop over the fence into the geese yard. She soon discovered that it wasn't all that much fun with the geese. We moved the shelter 4 feet from the fence and she didn't do that any more.
With the slope in the roof, to allow runoff, your goats may decide it isn't much fun to get up on a roof they are going to slide off of... really disrupts sleeping.