To prepare the tabs and lay the starter course shorten the first starter shingle by 6 inches or about a half of one tab.
How to shingle roof three tabs.
The first full shingle that you lay will need to be laid along the centerline of your roof.
Place nails in the three tab shingles about 3 4 inch 1 8 centimeters above the cutouts near where the tab meets the upper part of the shingle.
Begin row 4 with a shingle cut in half 1 and tabs and complete that row.
Use the chalk line to snap a straight line vertically every 6 inches.
As described earlier use a utility knife and straight edge to cut at the slots in the shingle effectively creating three equal sized pieces of ridge cap from one 3 tab shingle.
For instance when using metal flashing with shingles with a typical 143 mm 5 5 8 exposure such as traditional 3 tab shingles the size of the flashing will be 250 mm x 200 mm 10 x 8.
The 250 mm 10 length is bent in half so that 125 mm 5 will reach up the wall surface and the other 125 mm 5 will extend onto the roof deck.
Step three measure the roof line.
Begin row 5 with the 1 tab shingle and row 6 with the 1 2 tab shingle.
Step two prepare start row of shingles.
Install a starter strip.
You will once again need 4 nails whenever you are installing the 3 tab shingles.
They will go in the same location as the nails that went in on the first line.
Mark a chalk line from the top to the bottom in the exact middle of the roof.
Repeat this on both sides of the roof.
Also place a nail 2 inches from each end of the shingle in line with the other two.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
If the slope is shallow so there s no.
You will shingle over this starter course so the bottom course will be double thickness.
Place the glue strip at and all along the drip edge and the rake edges as well.
How to do it.
However make sure that you do not nail into the tar strip.
Take enough shingles to create one row across the roof of your house and then cut out the tabs of each of those shingles.
Step 2 determine the prevailing wind pattern for the area.
In all use four nails per 3 tab shingle.
Make sure that the tabs are lining up with the bottom line and that the tabs are facing down.
Every 5 inches make a new mark until you get to the rop of the roof.
Row 7 begins with a full 3 tab shingle.
Align and install the 2 tab shingle aligned with the next 5 inch higher chalk line.
If possible have the shingles delivered via a boom directly onto the roof.