Roofing System -Part #3 - Allsafe Home Inspection Service, Inc.
Roofing System -Part #3 - Allsafe Home Inspection Service, Inc.
Roofing System -Part #3 - Allsafe Home Inspection Service, Inc.
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476
6.04(1)(a)2. The Inspector shall Ob Observe bserve<br />
the exposed roof drainage system.<br />
6.04(1)(b)2. The Inspector shall Identify dentify the<br />
roof drainage system, Gutters, Leaders,<br />
Downspouts<br />
Oth Other) )<br />
(Aluminum, Copper, Wood, Vinyl,<br />
eport On<br />
66.04(1)(c)2. 04(1)(c)2 The Inspector shall Report<br />
exposed roof drainage systems.<br />
477
Gutters & Downspouts<br />
are important because:<br />
They control roof drainage<br />
They prevent paint failure<br />
They prevent decay<br />
Th They prevent t soil il erosion i<br />
They prevent wet basements<br />
478
Typical gutter / downspout problems<br />
Gutters:<br />
D Downspouts: t<br />
Missing<br />
Clogged<br />
Loose<br />
Leaks at seams<br />
Leaks at ends<br />
Damaged<br />
Decayed<br />
Clogged<br />
Rusted<br />
Improper pitch<br />
Spill over<br />
Spill behind<br />
Missing<br />
Clogged<br />
LLoose<br />
Leaks<br />
Damaged<br />
Rusted out<br />
Disconnected<br />
Crushed<br />
Obstructed<br />
Discharge near<br />
foundation<br />
479
ROOF DRAINAGE?<br />
Report on missing gutters as they cause wood to decay,<br />
finish failure, failure erosion and wet basement problems<br />
problems.<br />
480
Compliments of the ASHI Reporter,<br />
October 2004 by Don Lovering<br />
1” of slope for every 16<br />
feet of gutter<br />
481
Compliments of the ASHI Reporter,<br />
October 2004 by Don Lovering<br />
482
Compliments of the ASHI Reporter,<br />
October 2004 by Don Lovering<br />
483
DECAYED WOOD<br />
GUTTER - REPORT IT!<br />
484
Wood ood Gutters need to be cleaned<br />
and treated with boiled linseed oil<br />
Historically a popular choice prior to 1960 1960.<br />
Typicallyavailableina4by6inchesinclearfir.<br />
The interior leg of a gutter should be 1 /8 to 1/4 inch<br />
hi higher h th than th the outside t id lleg iin order d tto spill ill water t<br />
outward.<br />
485
WOOD GUTTER - DECAY @ RAKE BOARD –<br />
MISSING DRIP EDGE FLASHING<br />
486
LEAK AT GUTTER SEAM<br />
487
YANKEE INGENUITY<br />
488
Identify COPPER<br />
489
COPPER<br />
490
COPPER GUTTER & DOWNSPOUT PARTS<br />
491
ALUMINUM GUTTERS<br />
492
Talk “tech” but know your Client!<br />
493
494
IF THE GUTTER IS IMPROPERLY PITCHED, WHAT<br />
HAPPENS TO THE WATER IN THE WINTER?<br />
495
REPORT DAMAGE<br />
496
497
RReportt l loose gutters tt<br />
498
IS THIS PROPER?<br />
499
Dope Slap!<br />
500
Identify Galvanized Steel<br />
Gutters and Downspouts<br />
Downspouts,<br />
most are fully depreciated.<br />
501
Galvanized Steel Gutters<br />
502
Identifyy vinyl y gutters g<br />
• Color coordinated<br />
• Snap together<br />
• Easy for do-it-yourselfers<br />
• Durable<br />
• Don’t place a ladder against one<br />
503
Galvanized<br />
downspout<br />
INSIDE CORNERS DECAY FROM<br />
ROOF DRAINAGE SYSTEM PROBLEMS<br />
504
Leaf Guard<br />
505
H How Gutter G tt HHelmet® l t® WWorks k<br />
The secret is surface tension. You can<br />
see surface tension at work when you<br />
hold a water glass sideways under a<br />
running faucet; the water does not run<br />
off the glass, but flows all around the<br />
outside. t id<br />
In the same manner, water running off<br />
of your y roof clings g to your y Gutter<br />
Helmet, travels around its curved nose,<br />
and then flows smoothly into your<br />
gutters. Leaves, pine needles, and<br />
other debris debris, however however, fall to the<br />
ground below. Your gutters stay clear,<br />
and you keep your feet on the ground.<br />
506
507
Deicing cable systems can prevent ice damming on roof<br />
and in gutters and help with icicles on covered gutter<br />
systems systems.<br />
Deicing cables maintain a pathway for melting water to<br />
exit the roof and drain through the gutter system.<br />
Deicing cables may cause a ice dam higher on the roof.<br />
508
A downspout is a vertical pipe<br />
used to drain rainwater from a roof.<br />
509
INTERIOR DOWNSPOUT DRAINS<br />
Why disconnect?<br />
During a heavy storm, each downspout can deliver 12 gallons<br />
a minute to the sewer system, which can contribute to<br />
basement backups and sewer overflows.<br />
Disconnecting an interior drained downspout, can make a<br />
difference in keeping excess water out of the sewer system system.<br />
510
DISCLAIM UNDERGROUND DRAINS<br />
EXPLAIN WHAT A DRYWELL IS<br />
511
512
Downspouts can<br />
cause soil erosion<br />
513
WHY IS THIS DOWNSPOUT<br />
DISCHARGE A PROBLEM?<br />
PROBLEM?<br />
514
515
The freeze, crack or block drainage<br />
516
517
Study this picture!<br />
518
Why is it critical that this roof drain be<br />
maintained in a functional condition?<br />
519
Can you give an example of when a<br />
gutter might be a safety hazard?<br />
C Can you give i an example l of f when h a<br />
downspout might be a safety hazard?<br />
520
SKYLIGHTS<br />
521
THE INSPECTOR SHALL<br />
REPORT ON THE SKYLIGHTS<br />
What do you REPORT if you don’t<br />
go on th the roof?<br />
f?<br />
522
TYPES OF SKYLIGHTS:<br />
Flat & fixed or<br />
openable<br />
Pyramid skylight<br />
Dome skylight Tubular skylight<br />
523
524
525
Cross Section<br />
526
Ready for the step flashings<br />
527
528
What will you Report Report ?<br />
529
What will you Report ?<br />
530
WHAT FIELD PROCEDURES DO YOU FOLLOW?<br />
531
What will you Report Report ?<br />
532
Failed seals<br />
are re common<br />
533
What will you Report Report ?<br />
534
SKYLIGHT<br />
FLASHING<br />
535
Crazing Cracks<br />
This type of skylight of prone to<br />
develop crazing cracks and flashing 536<br />
leaks. Advise your client.
Why is the tar present?<br />
537
What will you report?<br />
538
What will you report?<br />
539
What will you report?<br />
540
What will you report?<br />
The flashing details at the<br />
skylight k li ht ddo nottconform f<br />
with acceptable building<br />
practices. There is a risk<br />
of leakage and interior<br />
water damage.<br />
needed.<br />
Repair is<br />
541
Look for one piece of flashing per row of shingles<br />
542
543
Reporting on signs of water<br />
penetration is required in<br />
the S.O.P.<br />
Skylight<br />
Ceiling<br />
544
545
Skylight checklist:<br />
One piece of flashing per row of shingles<br />
No tar or caulking on the flashings<br />
Evidence of repairs<br />
Skylight curb elevated above the roof<br />
W Workmanlike k lik manner<br />
Cracks, crazing, seal failures<br />
Stains on ceiling above skylight = roof leak<br />
Stains on ceiling below skylight = flashing leak<br />
Stains on walls adjacent j to skylight y g = condensation<br />
Missing hardware<br />
Broken hardware<br />
546