Position the next panel further from the house but overlapping the first by at least 6 inches.
How to install tin roof under deck.
Mark the porch with a line parallel to the edge farthest from the house.
Install the purlin along the house and the outer purlin.
Mark the line 2 inches in from the.
First mark all the purlin locations on the deck joists.
Install subsequent rows of panels working your way to the downwind side of the deck s lower surface until finished.
However with a seamed or crimped roof style you won t need screws.
Step 2 take measurements.
Secure it in the same manner as the first.
Step 1 select a tin roof type.
Then stretch a string between them.
Install the roofing screws vertically along each rib in the panel.
Lower than the purlin along the house 12 x 1 4 3.
Place the first screw.
Decide what type of tin roof you want by selecting either an r panel or v crimp style.
If the span under your deck is 12 ft for example the purlin at the outer end of the deck should be 3 in.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.
How to build a tin roof over a deck step 1.