Score the surface of the aged wood on your porch surface with a craft knife if you want to create board lines. Check and mark the layout of the porch support pieces you cut from Gatorfoam. Arrange them so that they support the porch when the porch fits tight back against the cabin wall facade. If the wall facade battens push the porch away from the facade, trim them so they are even with the top of the porch.
When you are sure your porch will fit correctly against your facade, glue the porch supports in place and weight or clamp them until the glue dries.
Before you glue the porch in place, you will need to create and attach the roof support posts. Take two forked twigs at least the height of your walls. Hold the twig straight out from the cabin wall, at the outer edge of your porch, with the larger part of the fork heading towards the centre of the roof. (see photo). Have a helper hold the roof against the peak of the cabin facade, and mark your twigs so that they can be cut on an angle to act as roof supports. Cut them to the correct length after you have the roof angle correct! When the twig posts will meet and support the angle of the roof, trim the base to fit correctly on the front of the porch.
Coat the base of the roof support twigs with glue, then screw them in place through the bottom of the Gatorfoam porch piece. Drill a pilot hole first to make sure you don't split the twigs, and don't over tighten the screws or you will break the surface of your Gatorfoam. Set the porch aside until the roof supports are dry. Slip the porch into place and have a helper hold the roof in place on the facade, make sure the twigs are at the correct angles to support the roof , that the roof is touching along the entire length of the facade roof peak, and have your helper check the roof is square, not leaning towards the front or back! If everything lines up, glue your porch in place on the support foundation and against the cabin. Clamp it in place until the glue dries.
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