Rockwool Wall Insulation in Boerne: What to Know First
We provide independent Rockwool wall insulation service in Boerne, with most residential jobs completed in one day and a written price delivered before any work starts. As an independent Rockwool service provider, we source materials through our regular supply chain and do not represent the manufacturer. Most calls we get are from homeowners in neighborhoods like The Dominion of Boerne or near the Cibolo Creek corridor who noticed their walls aren’t keeping heat out the way they used to, or who bought a place with existing Rockwool that settled or got wet. Call (830) 529-7780 for a free estimate, or text us if that’s easier.
How Rockwool Products Fail - and How We Fix Them
- Comfortbatt R23 settled below top plates in 2×6 walls. The mineral wool fibers compress over time in Boerne’s heat-cycling climate, leaving a 2-3 inch gap at the top of stud bays that acts like a thermal chimney. We remove the settled batts, air-seal the top plate with acoustical sealant, and reinstall to full contact density.
- Comfortboard 110 absorbed roof leak water and lost R-value. Rockwool is hydrophobic but not waterproof; prolonged exposure to bulk water from a flashing failure wicks through facing paper and degrades the binder. We map the moisture intrusion, replace affected boards, and document the repair for your insurance adjuster.
- AFB evo batts pulled away from electrical boxes creating convection loops. The friction-fit design doesn’t always hold against Texas-sized wall penetrations for recessed cans or old-work boxes. We use fire-rated foam around each box, then reinstall batts with mechanical fasteners where the fit is loose.
- Rockwool cavity fill in balloon-framed Boerne ranch homes created a stack-effect highway. Homes near the historic district with no top plate blocking allow attic air to channel straight down wall cavities. We install fire-blocking at each floor level before reinsulating, which most crews skip because it’s hidden work.
- Comfortbatt installed backwards with vapor retarder facing the wrong direction. In Boerne’s mixed-humid climate, the kraft facing belongs toward the conditioned side; backwards installation traps summer moisture against the sheathing. We correct orientation and add supplemental air sealing where the facing was compromised during reversal.
Our Rockwool Wall Insulation Process
- 1
Call and scope. A live person answers. We ask about the home’s age, wall construction, and what you’re experiencing. We schedule a site visit with a written price to follow.
- 2
Blower-door test and infrared scan. We pressurize the house and walk the walls with a thermal camera to find where Rockwool has failed, settled, or was never properly installed. You get the CFM50 number on paper.
- 3
Air sealing first. Top plates, penetrations, electrical boxes, and any balloon-framing gaps get sealed before a single new batt goes in. Seal the envelope first. Then fill it.
- 4
Material selection. We specify the right Rockwool product for your wall assembly, or a quality equivalent from Johns Manville or Knauf if lead times or compatibility dictate. No proprietary lock-in.
- 5
Installation and documentation. Batts are cut to fit around obstructions, not compressed behind them. We photograph the work, run a post-installation blower-door test, and print your pressure-differential report in pascals.
- 6
Written warranty and cleanup. The 365-Day Done Right Promise, your documented photo record, and the final CFM50 reading are in your hands before we leave.
What Rockwool Wall Insulation Costs in Boerne
Most Rockwool wall insulation jobs in Boerne run between $2,800 and $6,400 for a complete exterior wall treatment on a 1,800-2,400 square foot home. Drill-and-fill retrofits on older homes near Main Street or River Road typically fall at the higher end due to lath-and-plaster or dense-pack removal. Interior soundproofing with AFB evo in a single media room or home office usually runs $1,200-$2,400.
What moves the price: accessibility of wall cavities, whether we need to remove existing degraded insulation first, the extent of air sealing required before batts go in, and whether fire-blocking is missing in balloon construction. We deliver a flat written price before any work starts, no exceptions. Call (830) 529-7780 for an exact quote, or bring us a competing estimate for a free second opinion.
Why Boerne Homeowners Call Topside Attic Insulation Boerne for Rockwool Work
We’ve sealed and insulated over 9,000 homes since 2016, and the ones in Boerne taught us something specific: the Hill Country’s temperature swings, especially the late-summer heat that lingers into October, punish wall insulation that was installed without proper air sealing first. Wes Okafor runs a blower-door test on every job and hands homeowners a printed pressure-differential report so the performance change is documented, not claimed. Our crews know the difference between Comfortbatt and Comfortboard installation requirements, and we carry Reflectix and other brands when a hybrid assembly makes more sense than straight Rockwool. Background-checked, uniformed technicians. Calls answered by a live person, 24/7. The 365-Day Done Right Promise applies to everything we touch.
FAQs
Rockwool’s product warranty covers manufacturing defects regardless of who installs it, provided the product was stored and installed per manufacturer guidelines. We follow those guidelines and document our work so you have a record if a claim ever arises. Call (830) 529-7780 if you need help understanding your existing warranty terms.
Most residential Rockwool wall jobs in Boerne are completed in one day; larger homes or those requiring extensive fire-blocking in balloon-framed walls may need a second day. We tell you the timeline in your written price before anyone lifts a tool.
Yes. We source from Owens Corning, Johns Manville, Knauf, and others, and we specify based on the assembly’s needs rather than brand loyalty. If Comfortbatt lead times are long, we’ll show you the tested alternative and explain the trade-off in R-value per inch and density.
Repair is cheaper when the material is dry, fully accessible, and simply settled or poorly fitted; removal and replacement is necessary when Rockwool has been wet, compressed by prior remodeling, or contaminated. We assess this during the blower-door and infrared scan, and we quote both options when both are viable.
We can typically schedule a site visit within 24-48 hours for Boerne homeowners, with installation following once the written price is approved. Emergency situations, such as wall insulation compromised by active water intrusion, get priority scheduling. Call (830) 529-7780 to discuss your timeline.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.