Oral cancer can develop in the lips, gums, and tongue, as well as the lining of the cheeks and the floor and roof of the mouth. White, red, or mixed red and white spots (or patches) on your tongue, gums, or any other tissues in your mouth. A sore or irritation in the mouth that bleeds easily and doesn't heal.
Normally shingles are grouped horizontally in groups of three or four. Either glue or small tacks holds together the pre-grouped shingles.  â¦    also, 3 bundles of 30 year shingles = one square=100 sq ft coverage.------------------------------------ A standard 3-tab shingle contains 1/3 of a square.... that is, it takes three bundles of shingles to cover 100 square feet.
Check the wrapper of whatever shingle youâre looking @ - it will tell you how many nails & where they should be placed. For âmostâ Dimensional shingles, you are supposed to put 4 nails ea. & by the time you get another course installed, you end up with 8 total (4 in the center & 4 in the top.