How To Install Tin Roof On Lean To

The point of the triangle is where the metal will wrap around.

How to install tin roof on lean to.

Make a ledger board to fasten to the existing wall and support the upper end of the lean to roof. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. Secure the slats with 3 inch metal to wood screws. I installed all the metal roof by my self and managed to not die in the process.

Lay the slats at 2 foot intervals length wise as you work from the roof s bottom and upward. Close or seal off the ends with a wood or plastic strip under the panel at each end. Install slat boards to the roof so that you can easily attach the new tin. Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed. Compute the depth of the shed by taking the square root of the difference. Also snip the other side directly across to prevent it from flattening.

On lean to roofs where a sloping roof plane meets the siding endwall flashing is necessary. These will stop the entry of rain wind and pests. 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 line. Start at the highest point and the furthest point from the trash container and take off all the old.

Measure the width of the outside wall and cut the board with a circular saw to the same length. Tin roof installation requires the use of purlins which are horizontal nailing strips on the roof deck. Install the roofing screws vertically along each rib in the panel. Draw a right angled triangle on a piece of paper that shows the length of the roof and the planned height of the opening.

To install the drip edge use tin snips to cut a triangle from the side that sits on the plywood where the metal will wrap around the corner. Use a 2 by 4 inch board for a short roof up to about 8 feet a 2 by 6 for a longer one.