Blown-in insulation
Snapshot: Homeward Insulation describes calibrated blown-in fiberglass or cellulose for Indianapolis-area attics and suggests a typical attic target of R-38 to R-49. ENERGY STAR’s zone 5 retrofit table is higher for an uninsulated attic (R-60).
What does the company say blown-in insulation is?
The official blown-in page describes a calibrated blower that feeds fiberglass or cellulose through a hose into an attic at a density matched to the manufacturer’s specification for a target R-value.[1] It says fiberglass is widely used in Indianapolis-area attics and does not settle in the way the page describes, while cellulose is noted for recycled content and sound dampening.[1] The page also mentions pairing blown-in work with air sealing, ventilation baffles and, case by case, a radiant barrier or attic fan.[1]
What R-value does the company suggest?
A tip on that page says most Indianapolis-area homes benefit from an attic R-value in the R-38 to R-49 range, and that the company will audit current levels.[1] ENERGY STAR’s recommended retrofit table for climate zone 5, which includes Indianapolis on standard IECC maps, lists R-60 for an uninsulated attic and R-49 when 3 to 4 inches already exist, with floor insulation at R-30.[2] This wiki reports both figures and does not treat the company tip as a substitute for the ENERGY STAR table or for a site-specific audit. See climate zone and R-values.
Where does it say the work is done?
The page says it serves the greater Indianapolis area: Indianapolis, Brownsburg, Zionsville, Carmel, Fishers, Westfield, Noblesville and Whitestown, and it includes short neighborhood notes for Carmel, Fishers, Zionsville and Meridian-Kessler.[1] Those notes are marketing examples, not a performance study. Confirm a specific address when requesting an estimate.
Asked questions
Does the company use fiberglass or cellulose?
The official page describes both and says the blower is calibrated to a manufacturer specification for the target R-value.
Is R-38 to R-49 the official ENERGY STAR figure?
No. That range is a company tip. ENERGY STAR’s zone 5 retrofit table uses R-60 or R-49 depending on existing insulation.
Continue reading
- Indiana climate zone and R-values
- How home insulation works
- Services
- Service area
- Hiring an insulation contractor
Citations
- ^ a b c d e Blown-In Insulation. Homeward Insulation (homewardinsulation.com). Retrieved 9 November 2026.
- ^ Recommended Home Insulation R-Values. ENERGY STAR. Retrieved 9 November 2026.