The spackiling was applied Thursday 8-10-17 and allowed to dry. On Friday, it was sanded and a second layer applied. The moisture in the spacking was causing the paper machete to weaken. I broke through in one spot so I had to patch it in the back. On Saturday, the finishing touches were given and I started to cover it with duct tape for good release on the inside. The tape did not stick to the spackling, so I primed the spacking like you would on a wall. After the paint dried, the tape stuck and all of the spackling was covered. I placed peel ply down first over the tape only, in order to provide a peel ply'd inside surface. The plan is to add 3 or 4 plys on the inside for strength. I layed down two BID on top of the peel ply, feathering them at the edges. The outside was then peel ply'd