It is possible to see daylight and not have a leak problem.
Other than leaks, you can sometimes see loose or missing shingles from the ground. To be certain about the condition of your roof, a roof check should be done by a professional roofer or house inspector. They will look for loose shingles, missing nails, detached flashing and other issues.
You should contact a roofing specialist to decide whether you need a new roof or not. But in the past my shingles roof has worked very successfully to weather conditions.
The added weight issue. This is why you see people supporting the new roof with columns.
You first have to measure your roof. Shingles are sold by the square. You will have to find the replacement shingle that you are interested in, then take your roof measurement to see how many squares you need. You might think about using a metal roof. They cost more at first, but last a lot longer.
Every roof requires regular inspections so repairs can be made before leaks set in. You can inspect your roof without every setting foot on your shingles by using a pair of binoculars. Staying on the ground and using your binoculars, you can inspect the shingles all around your roof. Look for any that are curled, broken or missing completely. The attic should be inspected for leaks. The binoculars and a good flashlight will allow you to see throughout the attic. Watch closely for rust stains on the nails and condensation. Finally, step back and look at the overall roof. Dark stains running down the shingles indicate a loss of the protective granules and could indicate that it's time for a new roof.
Well.. you have to take off your first roof. Then you need to make a "blue print" to make the drawing of your next roof. Then you put all of the roof tiles. make sure your roof is triangular because the roof can cave into your house when it rains and makes a big puddle of water. Sorry if this did not help at all...
What's above it on the roof ? Water may be running down a joist for a bit. A new roof, properly felted and roofed shouldn't have any place for it to leak. Type of roof could make a difference, I'm assuming asphalt shingles. If possible, look in the attic to see if you can see a water stain around the leaking area.
most roof replacements are around 15 to 20 years. your location and climate will dictate how the shingles wear. you will need to check with your local building dept. th see what is required by code for your area.
No. They can not see in ultraviolet light. They are known to glow when exposed to ultraviolet light, though.
By removing all the membrane down to the original slab then primming the slab and using 4 ply 15# felt and hot applied bitumen making sure the roof has pitch to the drainage systems and using 4 PSF sheet lead flashing below the membrane
You can see through them because light goes through them, and our eyes are built to see certain wavelengths of light.
To make the pretty blue and red lights higher and easier to see.