How To Find A Rafters Under Shingle Roof

Then the asphalt shingles are fastened to the roof with roofing nails.

How to find a rafters under shingle roof.

The other method i have used is to pull a section of vinyl soffet open and spot the rafter end then use a tape to measure off at the ridge. The difficulty with scanning for rafters is that the asphalt shingles now create an irregular scanning surface that can result in false positives stud indication when a stud may not actually be present. More granules fall off around the damaged spot and the bruise grows. Verify spacing from the inside.

When a shingle loses its protective layer of granules uv rays from the sun begin to destroy it. Measure the distance from the inside wall to the center of the first rafter inside the attic. In many cases the rafters are exposed in. Tap the roof moderately with a rubber mallet or.

Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles. Go in the attic with a flashlight during or shortly after a heavy rain being careful not to step through the ceiling. Most roof decking is made from sheets of plywood. Roof leak leakage of the roofing that has caused rot and partial collapse of the sheathing in the area of the leak is the 1 cause of a roof dip.

Re shingle roof valleys install ice and water shield under shingles or install metal roof flashing and re shingle the valley roof nail leaks roof nail leaks can happen when roof nails have been loosened slightly from high winds or have simply pulled out over time. You may also find yourself dealing with mold and mildew problems. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof. In the absence of rain use a garden hose to thoroughly wet down the roof to create a manmade leak.

Starting at the bottom of the roof map out a guideline with chalk. When a large hailstone hits an asphalt shingle it can tear or even puncture the shingle. Learn how to remove roof shingles here. Subtract the width of your ridge beam.

If you re using a 2x4 it ll measure 1 5 inches 3 8 cm. In most buildings the rafters will be square to the soffet edge by virtue of the sheathing panels being square. Measure the width of the ridge beam. Examine the roof decking and rafters in the attic above the spot where the ceiling is wet.

Roof deck is the roofing material that sits on top of the roof trusses. The ridge beam is the vertical piece of plywood which will form the peak of the gable and to which you ll fasten the rafters on either sides. Position yourself on the roof between the apex and the bottom edge. But usually it just knocks granules off the surface.