Roof certifications are performed by certified roofing contractors or roofing inspectors who physically inspect roofs and provide written reports on the condition of the roof including ridges, rakes and drip edges, drains, downspouts, gutters, flashing, protruding roof pipes, chimneys, vents, and valleys.
The goal is to determine the remaining life expectancy of a roof and certify that its life expectancy has been verified. Most certifications are considered valid for between two and five years depending on the state and county in which certification takes place.
If a roof requires repairs, the certifying contractor will typically issue certification only once the roof has been repaired.
Roof Certification Considerations
Roof certification takes the following items into consideration:
Roof pitch effects the cost of replacing a roof. As roof pitch increases , so does the price of replacing your roof . Steep pitches that re accompanied by lots of intricate details like dormers, skylights, antenna mounts and valleys will significantly increase the price of roof replacement
The age of a roof is an very important element of the roof certification process .The average life expectancy of an asphalt shingle roofs in North America is around 15 years, while the life expectancy of wood shakes is only around 10 years. Roofing products like slate can last well over 50 years as can metal roofs and some synthetic roofs. Most roofing manufacturer warranties are prorated - meaning manufacturers will only pay out a very small prorated portion of their warranty if and when claims are approved - but very few warranty claims are ever successful as evidenced by countless class action lawsuits against some of Americas largest roofing manufacturers.
There are local by-laws in many local counties and cities which define the number of layers of roofing which can be applied to a roof before a complete tear-off is necessary. Tear-offs increase the cost of roof replacement as the cost of labor and sending material to landfill increases annually.
Roof Certification frequently requires seller disclosures relating to any previous roof repairs that may impact the future of a roofs performance.
Roofing companies will typically not honor claims related to natural disasters or severe weather conditions such as hurricanes, nor damage caused by foot traffic and improperly installed roofing and roofing accessories including skylights , solar panels and TV Antenna. In some states like Florida natural disasters like hurricanes are optionally covered by a citizens insurance
Roof inspections inspect the roofing surface, excluding antennae and other installed accessories such as solar heating systems, lightning arrestors, and satellite dishes; roof drainage systems; flashing; skylights; and exterior of chimneys.
Roof Inspection Checklist.
(Download this Checklist in PDF format visit Roofers World- Official Site Sponsor
��Using a pair of binoculars or standing on a ladder at roof level, look at the overall appearance of your roof. In particular, look for the following indicators of potential roof problems:
�� Are there any blistered, curled, or split shingles? A few can be repaired, but if the general appearance of the roof is poor, it may be time to re-roof.
�� Are there loose or missing shingles or tiles?
�� Do you see any exposed nails? They are a source of leaks.
�� If your roof is covered with composition (asphalt) shingles, look for dark patches indicating the granular coating has worn away.
�� Look for significant accumulation of granules in your rain gutters. Some granules are normal, but a lot, combined with dark patches on your shingles, is a sign of an aging roof.
�� Look for sagging along the ridges or in the middle of the roof.
�� Check where ridges and hips meet. Shingles may break or work loose in these spots.
�� Any rusty metal or displaced shingles along the valley are signs of roof weaknesses.
�� Inspect the flashing around plumbing vents and chimneys. Loose shingles or rusty, loose flashing is another sign of trouble. Step flashing around chimneys must be well embedded in the mortar between bricks.
�� Where a vertical side of the house meets the roof, such as along dormer walls, flashing should be firmly in place or it is a potential leak.
��Check the gutters closely for sagging and signs of leaks between sections. Are thedownspouts firmly in place and directing water away from the house foundation?
�� If you have a shake or shingle roof, inspect the flashing around chimneys and vertical walls carefully because acid in the wood can eat away at the flashing over the years. In consistently moist areas, prevent mildew by regularly removing wet leaves that collect in certain parts of the roof.
2. From inside:
�� In the attic, look for signs of leaks. Dark stains on the rafters or the underside of the roof decking material generally indicate water trails. Look for water signs around plumbing vent pipes and along chimneys, skylights, and valleys.
�� If you find dark spots, see if they are still wet or are old. Push a sharp screwdriver into the wood. If it is soft, it is a sign of rot. If the wood is stained but still dry and firm during your rainy season, it may be an old leak that has been repaired.
�� Look up through the roof for any pinpoints of light. If you find one, run a thin length of wire up through it so you can find it on the roof. Do not widen the hole. Shake roofs in particular may show daylight during the summer months, but the wood will swell shut again with the first rains.
�� Look for sagging sheathing between rafters. This is one sign of an old roof in need of repair. Sagging or cracked rafters will certainly require repair or replacement as part of a new roof installation.
3. Flat roof:
�� Look for any blisters on the roof. If not already broken, blisters eventually will break, which may allow water to enter the roof. If you find any blisters, slit them with a knife and then coat with asphalt roofing patch material commonly known as roofing cement.
�� Look for depressions around vent pipes where water can collect and begin leaking through cracks in the surface. Fill them with roofing cement.
�� Check all flashing for any separations by the parapet that rings the flat roof.
�� Clean drains at the low end of the roof so water can run off without interruption
Below is a list of downlaodable Roof Inspection Checklists from referenced 3rd party information sources .
This list is by no means extensive, notwithstanding the listed providers offer good examples of what a roof inspection checklist should look like;
8) Citizens Insurance Roof Inspection Checklist ( Florida)
These suggestions courtesy of http://accurateinspections.com/roof.htm
1. Trim back tree branches that scrape against or overhang the roof. Keep branches away from chimney to avoid fire hazard and allow proper draft for safe and efficient chimney operation.
2. Check for curled, damaged, loose, or missing shingles.
3 . Check the lower edge of roof sheathing for water damage.
We will describe the roof surface; roof drainage systems; flashing; skylights; and chimneys;
4. Examine all roof flashing and the flashing around chimneys, vent stacks, roof edges, dormers, and skylights.
5. Make sure that the chimney cover (cap) is in good condition, and that it is tall enough to prevent creosote build-up.
6. Check vents and louvers for free air movement. Clean screens and remove bird nests, spiders, insects, and dust.
7. If there are wind turbines on the roof, check ball bearings. Clear gable vents of bird's nests and other obstructions.
8 . Check for damaged gutters, downspouts, hangers, and strainers. If needed, clean out gutters and downspouts. Make sure they are free from leaks and rust.
9. Check the condition of paint on gutters.
10. Examine television antenna guy wires and support straps.