ROOF LEAK REPORT
Chattahoochee Technical College
Building 200, Room 262
Appalachian Campus
Presented to: Mr. Jim Looney
Prepared by: Roy Weidman
May 15, 2012
Introduction
At the request of Mr. Jim Looney, Roy Weidman of Atlanta Roofing Resources
examined leaks occurring in Building 200, in Room 262 at the Chattahoochee
Technical College Appalachian Campus on January 23, 2012. Following the
initial examination, a contractor proposed to provide roof repair services to
stop the leaks entering Room 262 on a time and material basis, not to exceed two
men, one day.
Repair Attempt Results
After receiving the authorization to proceed with the repairs, a contractor
completed repairs to observed defects and stopped several of the leaks.
However, two leaks still persisted. On April 26, the contractor returned two men
to Building 200. The men spent the better part of another day repairing a
defective tie-in between the original roof over Room 262 and the building
addition. After the next heavy rain, Roy Weidman of Atlanta Roofing Resources
checked to determine if the repairs were successful, and found that there was
still some seepage coming through the roof into Room 262.
Based upon the lack of success in making effective repairs to the leaks, and the
overall poor condition of the roof over Room 262, Atlanta Roofing Resources
recommends the following:
1. The information gathered before, during, and after the two roof repair
attempts indicates that the roof is beyond repair. The only way to stop the
water from entering the roof on a temporary basis is to roof over the defective
roof section. This type of repair will result in approximately one year of leakfree performance. A recommended roof repair scope of work and budget
estimate for the repair in 2012 is provided in the final section of this report.
2. The entire roof area over Room 262 should be scheduled for complete
removal and replacement in the next available budget cycle. A roof
replacement scope of work and a budget estimate for complete replacement
in 2013 is provided in the final section of this report.
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Leak Conditions
The ceiling tile in Room 262 had fallen in due to roof leaks in mid-January 2012.
Other ceiling tiles were found to be badly stained.
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Roof leaks had streaked down the outside walls.
Roof leaks had stained the ceiling mounted lighting fixtures.
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By March, the stains on the ceiling had grown in size and number.
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Atlanta Roofing Resources marked the areas on the roof surface with blocks and
“X”s in the gravel where the leaks were occurring below.
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May 15, 2012
In April, Atlanta Roofing Resources responded to a request to identify and
diagnose two leaks. One leak was entering the front classroom wing hall in
Building 200. This leak was associated with a vent curb.
Contractor reinforced the vent curb flashings and made miscellaneous repairs to
other membrane defects in the area. This leak has stopped.
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May 15, 2012
One leak was still occurring in Room 262, along the low parapet wall, at the tie-in
with the new addition roof.
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May 15, 2012
The roofing repair men found that water was seeping under the defective tie-in
between the new addition wall at the left of the photograph and the old roof over
Room 262.
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It took two men the better part of a day to prepare and reinforce the forty foot
long tie-in between the wall and the Room 262 roof.
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Despite investing a total of four man-days of repair, the roof over Room 262 still
continues to leak. Although the leaks have now been reduced to minor drips, the
conditions are still intolerable for a college classroom.
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May 15, 2012
Chattahoochee Technical College
Appalachian Campus
Building 200, Room 262
2012
Extensive Roof Repair Recommended Scope of Work
1. Remove the buildup of excess gravel and repair debris from the roof over
Room 262 and dispose of off site.
2. Remove all loose gravel from the building addition parapet wall,
approximately 40 feet long, extending out over Room 262 in a 15 width,
sufficient to extend the preparation beyond the area of chronic leakage.
3. Remove the heavy build up of hot applied asphalt and prior repair materials
from the roof surface.
4. Remove all embedded gravel down to a smooth felt surface in a 12 inch width
at the base of the flashing at the upper wall, at the termination of the repair
area, and at the metal edge gravel stop.
5. Dispose of all materials and loose gravel removed off site.
6. Sweep and blow off dust and debris.
7. Prime the clean, dry, prepared surface with rapid drying primer applied at the
rate of 100 square feet per gallon. Allow to dry.
8. Overlay the entire cleaned, primed repair area with one ply of smooth and
one ply of mineral surfaced of cold applied modified bitumen membrane.
9. Strip in the terminations of the modified bitumen membrane with one ply of
12 inch glass mesh embedded in and top dressed with modified asphalt
mastic.
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May 15, 2012
Chattahoochee Technical College
Appalachian Campus
Building 200, Room 262
2013
Roof Replacement Scope of Work
1. Remove the existing gravel, roof membrane, satellite dish, metal edge,
gutters, debris, and unused equipment from the roof over Room 262 and
dispose of off site.
2. Allow the light weight concrete deck to air dry.
3. Mechanically attach a venting base sheet to the deck.
4. Install tapered isocyanurate insulation to the venting base sheet to direct
water to the gutters and away from the walls.
5. Install high density barrier board over the tapered insulation.
6. Install a 20 year warranted Energy Star rated white reinforced membrane
system.
7. Install new all and projection flashings.
8. Install new edge metal, gutters, and downspouts.
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