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Side by Side Comparison - Durolast Outperforms the Rest
| Company |
Duro-Last |
A |
B |
C |
Membrane Type |
PVC |
TPO |
EPDM |
Modified Bitumen |
| Custom Prefabricated Deck Sheets? |
YES. Eliminates 80-85% of Field Seams |
NO. All seams are hand-made on site |
NO. All seams are hand-made on site |
NO. All seams are hand-made on site |
| Sheet Construction |
Factory prefabricated into panels up to 2,500 sq. ft. |
Roll goods only, 500 sq. ft. coverage per typical roll |
Roll goods only, 1,000 sq. ft. coverage per typical roll |
Roll goods only, 100 sq. ft. coverage per typical roll |
All Flashing Material Reinforced? |
YES |
NO |
NO |
NO |
| Flashing Method |
All Heat-Welded |
Glue & Heat- Welded |
Glue |
Hot mopped, cement or torch applied |
| Curbs & Stacks Custom Prefabricated? |
YES |
NO |
NO |
NO |
| Scuppers and Parapets Custom Prefabricated? |
YES |
NO |
NO |
NO |
| Coverage for Ponding Water? |
YES |
NO. Typically voids warranty |
NO. Typically voids warranty |
NO. Typically voids warranty |
| Coverage for Consequential Damages? |
YES |
NO |
NO |
NO |
| Warranty Coverage |
Repair or Replacement |
Repair Only |
Repair Only |
Repair Only |
| Warranty provided at no additional cost? |
YES |
NO |
NO |
NO |
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Who We Help
Watertight Exteriors, Inc. is a full service low slope and flat roofing company serving all of Chicago and Chicago suburbs in Illinois.
| Counties |
Towns |
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Cook County
DuPage County
Kane County
Kendall County
Will County |
Aurora, IL
Batavia, IL
Chicago, IL
Bolingbrook, IL
Downers Grove, IL
Glen Ellyn, IL
Lemont, IL
Lombard, IL
Lisle, IL
Montgomery, IL
Naperville, IL |
North Aurora, IL
Oswego, IL
Plainfield, IL
Sugar Grove, IL
Warrenville, IL
West Chicago, IL
Wheaton, IL
Winfield, IL
Woodridge, IL
Yorkville, IL |
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