How to Know Whether You Need a New Roof
Inspections Extend the Life of Shingles, Cedar Shakes, and Framing
Jul 25, 2008
An inspection should be done on a periodic basis, and after each storm. Norm Abram of This Old House says, “You don't have to climb onto the roof. Get a pair of binoculars and scan it from the ground or a short ladder.”
Things to Focus on During the Roof Inspection
- Roof Shingles – Most homes have the asphalt variety but there are exceptions. Things to look for here are cracking, curling, cupping, and discoloration. Any missing ones should be replaced. Is the home outfitted with a metal roof? Look for corrosion; a clue would be unusual discoloration. Fungus, moss, and algae will aggravate corrosion. Cedar shake shingles will begin to crack and bow when they've about come to the end of their lifespan. Replace as needed. A slate roof? Any unusual flaking indicates a problem.
- Flashing at the Roof Line, Vents, and Valleys – All these items should be maintained properly. Metal flashing is intended to go under shingles to keep water out. Places to look for galvanized flashing are around the perimeter of the roof-line, the roof surface and anything that extends out of it (chimney, stink-pipes, other vents, skylights, etc.), and in the valleys. Check flashing for dried, cracked roof cement at joints, and for metal corrosion. These are all potential problem areas. Replace corroded flashing and apply fresh cement where needed. Better too much than too little!
- Roof Structure, Framing (trusses or rafters), and Sheathing – These are the structural elements to look at. The tip-off for problems is generally a sagging condition. The ridge line should not sag. If sagging is present between rafters, the sheathing may be at fault.
- Gutters and Downspouts - Give these a good look. The gutter guards should be clear and in good shape. Rainwater from the gutters and downspouts should be routed away to prevent foundation repairs.
- Perform an Attic Inspection – Viewing the interior of the attic a great analysis tool. Things to look for? Daylight coming in, for one thing. That's a potential leak. Discoloration on the sheathing or trusses can indicate where rain water has invaded the home.
While in the attic, look closely at the ridge vents and soffit vents to be sure nothing is impeding air flow. These areas may be blocked if there is undue humidity or mold present.
Is it Re-Roofing Time?
The inspection results will answer that question. A roof can be helped along for a long life merely by being proactive with inspections and small repairs. Replacing the odd shingle here and there and slapping on a bit of roof cement will do it.
Most roofs don't last as long as they should because homeowners have an “out of sight, out of mind” attitude. This leads to seeking a premature roofing quote.
But if it's finally time for a replacement, take your time and do your research when you select a roofing contractor. Look for a company that's been around for a while, has references, is in good standing with the Better Business Bureau, and is licensed and bonded.
 |
