Step 1 select a tin roof type.
How to install tin roof under deck.
Install the purlin along the house and the outer purlin.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
For an r panel style you will need to install it with 5 16 inch lap screws.
Mark the line 2 inches in from the.
Secure it in the same manner as the first.
Then stretch a string between them.
How to build a tin roof over a deck step 1.
Mark the porch with a line parallel to the edge farthest from the house.
Position the next panel further from the house but overlapping the first by at least 6 inches.
Lower than the purlin along the house 12 x 1 4 3.
Install subsequent rows of panels working your way to the downwind side of the deck s lower surface until finished.
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.
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.
For example assume the porch measures.
Step 2 take measurements.
Measure the porch to find the best length and width for a tin porch roof.
Place the first screw.