As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
How to put bundles of shingles on roof.
Only stack a few bundles high so there s no risk of them toppling over.
Do not take them out of their packaging before setting them down.
However shingles are packaged in a way that they are light enough for the average person to carry around.
Laminate shingles should preferably not be bent over the roof ridge or hips.
With three tab shingles which are thinner and lighter you can lay them over hips or roof ridges.
Repeat this process until you ve put all shingle bundles on the roof.
There are also 29 standard sized shingles.
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.
Leave them in the package for extra protection and so they stay together.
I have roof top delivery for every roof except a small multi layer steep tear off every now and then.
Carefully lay the bundles flat out on the roof.
The stair step method tends to spread and mix the bundles better.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
Prevent shadowing by checking to make sure all the bundles have the same lot number on the wrapper not just the same color.
If the adjacent shingles come from other bundles that are a slightly different color the roof may look patchy even striped.
Lightly lay the shingles on the roof flat.
Continue climbing up the ladder and onto the roof.
Learn how to install roofing shingles on your home.
One of my builders loads the roofs but stacks them like dominoes hard to grab shingles since i have to bend over for every bundle.
Choose a new location for other bundles so that the roof doesn t have to hold too much weight in one area.
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A shingle bundle typically weighs 75 80 pounds so stacking many of them could put a lot of pressure on the roof which may cause damage.