One square package is equal to 100 square feet of roof.
How to rack 3 tab shingles on roof.
Rubber roof shingles a shingle made from recycled rubber mostly tires.
The most common asphalt shingle and have 1 4 slots cut out to form three 12 inch rectangular tabs in their bottom half.
You will simply need to add up the total square footage of your roof and divide it by 100.
Known in the trade as vertical racking or staggering this how to lay shingles method enables the roofer to install a single column of shingles all the way to the peak without the wasted back and forth motion necessary to fill several rows of stair steps.
Before you go out and purchase your 3 tab shingles you will first need to figure out how many of them you will need.
You may carefully lay 3 tab shingle bundles over the roof ridges or hips so long as you don t lay too many bundles in the same spot.
Only stack a few bundles high so there s no risk of them toppling over.
I have heard of special methods being used for 3 tab asphalt shingle and low roof pitches less than 4 pitch that includes adhering the shingles and changing the reveal so that in the roofer would be nailing through 3 layers of shingles prevents wind lift off.
Align the 3 tab shingles with the horizontal lines and nail them in place.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
It is acceptable for some shingle types and it is the required method for a few shingle types.
Every 5 inches make a new mark until you get to the rop of the roof.
Like composite or synthetic it is manufactured to resemble cedar slate or asphalt shingles.
Use the chalk line to snap a straight line vertically every 6 inches.
In areas with high winds it is common to drive two nails above each cutout line.
This installation method is called racking racking is an improper installation method for many shingle types.
Many pros shingle in a vertical line up the roof because it s much faster.
Starting at the racked shingles fill in the courses.
Shed roof shingle types 3 tab roof shingles.