Attic Insulation and Ventilation for Riverbend Homes
Half the roof problems Trill sees in Godfrey trace back to attic ventilation. Undersized intake causes ice dams in winter and overheated attics in summer (cooking the shingles from below). Mismatched intake-to-exhaust ratios can pull conditioned air out of the home through gable vents. Trill Roofing assesses and corrects attic insulation and ventilation across Godfrey and the Riverbend. We work alongside our roofing crew so insulation and ventilation get sized correctly against the roof system.
What Attic Work Trill Handles
Attic services tied to roof performance:
- Intake ventilation: Soffit vents (continuous or individual) sized to net free area requirements for your attic square footage.
- Exhaust ventilation: Ridge vents, box vents, or power fans. Ridge vent is preferred when the roof has a usable ridge.
- Balanced ventilation calculation: 1:300 ratio of net free area to attic floor (with vapor barrier) or 1:150 without.
- Insulation top-up: Blown cellulose or fiberglass added to existing insulation to reach current code (R-49 for Climate Zone 4 – Madison County).
- Air sealing: Sealing penetrations at top plates, electrical, plumbing, and recessed lights before insulation top-up.
- Bath fan venting: Verifying bath and kitchen fans actually exhaust outside, not into the attic.
- Ice dam prevention: Ice and water shield extension, intake/exhaust balance, insulation gap correction.
Attic work and roof work are connected. A new roof on a poorly ventilated attic shortens shingle life by 30-50%. Trill includes ventilation assessment in every roof replacement quote so the underlying conditions get addressed. Illinois IDFPR licensed (#104.020330), fully insured.
Trill Roofing
2705 St Ambrose Dr Suite 1, Godfrey
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Great business to work with. My house, garage and studio now have matching shingles on the roof. Guttering was added to the house. Prompt service and fair pricing.
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I am very pleased with the total roof replacement and attic vents installation completed last week by Andy’s crew. Andy was reachable and responsive through the entire process! No question was too big or small! His crew had to stay an unplanned … More second day because of the steepness of my roof. There was not an ounce of frustration shown. I am pleased with the workmanship of his crew! They worked non-stop for two days, well into the evenings! At the end, I noticed a couple things to tweak and they did it without question or hesitation. I would highly recommend them!
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Trill Roofing went above and beyond on our roof. I have an old house. The roof had been untouched for many years. Much of the sheathing had to be replaced as well as rafters. In a time when it’s hard to get contractors to show up, … More Trill Roofing was on site, working on my roof exactly when they said they would start. They explained the process and answered all of my questions. I learned a lot about roofing systems.
I look forward to working with Trill on my upcoming siding and gutter projects. -
Andy, at Trill Roofing, is awesome to work with. We had storm damage, which insurance denied. Andy went the distance, he took multiple pictures which confirmed the damage, sent them to the insurance, and they finally approved roof replacement. … More None of the other roofing companies did that. They did an awesome job! Very quick and efficient. We highly recommend them.
