- HEP Roofing
- Attic Insulation

Attic Insulation
Attic Insulation | Roof Replacement | Roofing | Karns
When storms, scorching summers, and long winters take their toll on Karns homes, HEP steps in with a seamless blend of attic-insulation expertise and precise roof replacement. Our crew evaluates your entire roofing system—from the decking and shingles to the insulation and ventilation—then designs a solution that lowers energy bills and guards against moisture, pests, and heat loss. By swapping worn materials for premium, energy-efficient components, we help you reclaim comfort and peace of mind in every season.
Homeowners across Karns trust HEP for punctual appointments, transparent pricing, and roofs built to withstand Tennessee’s toughest weather. Whether you’ve noticed rising utility costs, curling shingles, or unexplained drafts, our licensed professionals deliver craftsmanship that’s as dependable as it is affordable. Ready to upgrade your attic and roof in one smart move? Call HEP today and discover how effortless superior protection can be.
FAQs
Why is proper attic insulation important during a roof replacement in Karns?
Attic insulation and roofing work together as a system. When we replace your roof, it is the perfect time to verify that your insulation meets current energy codes (Climate Zone 4: R-38 to R-60). Adequate insulation reduces heat loss in winter and heat gain in summer, lowering HVAC run times and utility bills by as much as 15-20 percent. It also prevents ice dams, moisture buildup, and premature shingle aging, helping your new roof last longer. Addressing both components at once avoids future tear-outs and ensures the roof deck is sealed, ventilated, and protected in one integrated project.
What types of attic insulation do you recommend for homes in the Karns area?
Most Karns homeowners choose one of three options: (1) Blown-in fiberglass, the most cost-effective upgrade when you already have some insulation; (2) Blown-in cellulose, which offers slightly higher R-value per inch and better sound dampening; or (3) Open-cell spray foam applied to the roof deck for maximum air-sealing and thermal performance. We evaluate your attic height, existing insulation depth, budget, and moisture conditions before making a recommendation. All three products are code-compliant, but spray foam delivers the highest energy savings and best air-leak control when budgets allow.
How can I tell if my existing attic insulation needs to be replaced when I get a new roof?
During our roof inspection we look for insulation that is: matted or compressed below the top of joists, damp or mold-stained, less than 10–12 inches deep, or displaced by pests or previous wiring jobs. We also use an infrared camera to spot hidden gaps and thermal bridges. If any of these issues are present, adding or replacing insulation at the same time as the roof replacement is recommended. Because the roof decking is exposed during re-roofing, it is easier and often cheaper to correct problems in one visit rather than scheduling a separate insulation project later.
Will adding more insulation block my attic ventilation?
No—when installed correctly, extra insulation actually improves the roof’s performance without restricting airflow. We install baffle vents (rafter vents) at the eaves before blowing in new insulation. These plastic channels keep soffit vents clear, ensuring continuous air intake while letting insulation reach its full depth above the exterior walls. Ridge vents or box vents at the roof peak provide exhaust. This balanced system removes excess moisture year-round, preventing mold and helping shingles stay cooler in summer.
How long does attic insulation installation add to a roof replacement project?
Most Karns homes require only an additional half-day to full day. While the roofing crew is removing old shingles and underlayment, our insulation team can prep the attic, seal penetrations, and set up baffles. Once the new roof is watertight, we blow in insulation or apply spray foam. Coordinating both crews keeps total project duration to 1–3 days for an average 2,000 sq ft home, with little disruption to your schedule.
Are there rebates or tax incentives for upgrading attic insulation in Karns?
Yes. Tennessee Valley Authority (TVA) offers EnergyRight rebates that typically pay $200–$400 for qualifying attic insulation upgrades. In addition, the 25C federal Energy Efficient Home Improvement Tax Credit provides 30 % of material costs (up to $1,200 per year) for insulation installed after January 1, 2023. We supply the receipts and R-value certification you need for both programs and will guide you through the application steps so you recoup as much of your investment as possible.