When a shingle loses its protective layer of granules uv rays from the sun begin to destroy it.
How to find roof rafters under shingles.
If you need to complete roof repairs such as installing new shingles or tiles you must know where the rafters are.
An 1 8 gap is specified by manufacturers between sheets of plywood that are nailed side by side over a shared top chord of a roof truss or a rafter.
The roof rafters provide integral structural support to the roof.
That ll get you pretty.
Fortunately there are several ways you can find roof.
When a large hailstone hits an asphalt shingle it can tear or even puncture the shingle.
In the photo below the impact depression is accompanied by a small hole.
Take a tip from professional roofers and use toe boards while doing the work.
The first is the use of the wrong type of fastener.
During a reroof start at the peak of the roof and remove all shingles prying them up with a pitchfork working your way down the roof.
Then the exposed part of the bracket rests on shingles.
Finding roof rafters from the top of the roof can be difficult since regular stud finders have trouble penetrating the plywood shingles or slate tiles covering the rafters.
Roof impact when a heavy object such as a tree branch drops on the roof it will cause a depression in the area and likely some structural damage to sheathing and roof trusses or rafters underneath.
More granules fall off around the damaged spot and the bruise grows.
Working your way up the roof expose all of the rotted wood.
About 500 people die each year in the united states as a result of falls from elevated places according to the centers for disease control.
If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.
Installing a roof by yourself can save money but it comes with risks of injury.
If you feel comfortable using these you can check the fascia and try to find the nail heads where the fascia is nailed to the rafter tails then follow that line up the roof.
Leave the next course of shingles intact by carefully removing the second set of four nails.
Pull up the felt paper underneath the shingles.
If this requirement is ignored and the sheathing is butted tight the wood has nowhere to go when the moisture makes it swell except to curl up along the shared seam.
But usually it just knocks granules off the surface.
There are a few reasons that roof rafters or roof trusses would show through the shingles of a completed roof.
When you install roof sheathing plywood you are suppose to use at least a 2 1 4 inch ring shank full head nail.
So this bracket slips up under the shingles and fastens through the roof.