Johns Manville Home Energy Audit in Converse: What to Know First
We provide independent Johns Manville home energy audit in Converse, typically completed in 2-3 hours with same-day scheduling available most weekdays. A full audit runs $280-$450 for a standard single-family home, and you’ll get a written price before we start - no exceptions. This page is for homeowners who’ve installed Johns Manville insulation or roofing products and need to know why their HVAC still runs constantly, their upstairs rooms won’t cool, or their energy bills keep climbing despite the “energy-efficient” label on the receipt. Call (830) 420-0953 to book or get a free second opinion on any existing audit report.
How Johns Manville Products Fail - and How We Fix Them
- JM Spider blown-in fiberglass settles below labeled R-value in Converse’s humidity. The product is engineered for dry-stack performance, but our blower-door tests in homes near FM 78 consistently show Spider compressing 15-20% in attics where summer humidity exceeds 65%. We measure actual depth with a probe, calculate the real R-value, and recommend supplemental air sealing before adding any replacement material.
- JM Climate Pro loose-fill creates thermal bypasses around unsealed top plates. Climate Pro installs fast, which means crews often skip the tedious work of sealing wall-to-attic joints. In ranch-style homes off Foster Road, we’ve found conditioned air streaming through these gaps at 800+ CFM50. We pull back the existing fill, seal with fire-rated caulk and rigid foam, then reinstall.
- JM AP Foil-faced polyiso board delaminates in vented attics during Converse heat spikes. The foil facing separates from the core when attic temperatures hit 140°F, common in unvented cathedral ceilings. Our thermal imaging catches the delamination before it spreads, and we replace with a vented assembly or switch to a product rated for the actual temperature range.
- JM Linacoustic RC duct liner sheds fibers when flex duct sags. The RC series is a workhorse for metal ductboard, but Converse homes with flex runs see the liner degrade where ducts droop and airflow becomes turbulent. We test for particulate release with a borescope, remove degraded sections, and reinstall with proper support spacing.
- JM roofing membrane underlayment traps moisture when paired with wrong ventilation. Homeowners who added JM roofing products during a 2018-2022 re-roof often have inadequate soffit intake. Our audit maps the ventilation ratio - net free area to attic floor space - and identifies where the membrane is working against itself.
Our Johns Manville Home Energy Audit Process
- 1
Schedule and scope. You call (830) 420-0953, a live person answers, and we book a 2-3 hour window. We send a text when the technician is en route.
- 2
Blower-door test - baseline. We pressurize the house to 50 pascals and record CFM50, the single number that tells us how much conditioned air is escaping. In Converse homes built 1985-2005, we typically see 3,500-5,500 CFM50 before any work.
- 3
Thermal imaging and insulation probe. Our FLIR camera finds thermal bridges and missing insulation pockets. We probe Johns Manville fiberglass depths at 10 points to check for settlement or installation gaps.
- 4
Duct leakage test. We pressurize the duct system and measure leakage to outside. A typical Converse home loses 20-35% of conditioned air to the attic.
- 5
Written report with photos and recommendations. You get a documented photo record, the blower-door number, thermal images with annotations, and a written scope with flat pricing for any recommended work. No work starts without your written approval.
- 6
Post-work verification (if we do the work). We run the blower door again and publish the before-and-after numbers. Seal the leaks first. Then insulate. The numbers will tell you if it worked.
Before
AfterWhat Johns Manville Home Energy Audit Costs in Converse
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Standard home energy audit (single-family, under 2,500 sq ft) | $280-$350 | Number of HVAC zones, attic accessibility, whether duct testing is included |
| Large home or multi-zone audit (2,500-4,000 sq ft) | $350-$450 | Second blower-door setup, crawl space inclusion, thermal imaging of multiple roof planes |
| Duct leakage test add-on | $75-$125 | Duct accessibility, number of returns to isolate |
| Follow-up verification blower-door test | $150-$200 | Included free if we performed the original audit and you hired us for the work |
Homes with Johns Manville products installed 2015-2020 often need more probe points due to settlement patterns we’ve documented in this market. We price that in upfront, not as a surprise. Call (830) 420-0953 for an exact quote - estimates are free, and we give free second opinions on any written estimate you’ve already received.
Why Converse Homeowners Call Topside Attic Insulation Converse for Johns Manville Work
We’re independently owned and operated, not a franchise, and we’ve treated air sealing as a hard prerequisite since 2016. Wes Okafor runs the blower-door test himself on most Converse jobs - he grew up on Chicago’s South Side, trained at Kennedy-King College’s building trades program, and has spent two decades translating that classroom work into Texas attics. His crew knows Johns Manville’s product lines because they’ve pulled out enough failed installations to know where the shortcuts happen. We also work with Reflectix and other brands, so if your audit reveals a material mismatch - JM products in an application they weren’t designed for - we’ll tell you straight and quote alternatives. Every job carries our 365-Day Done Right Promise, a written scope, and a documented photo record. Calls are answered by a live person 24/7.
FAQs
No. As an independent Johns Manville service provider, our audit is diagnostic only - we don’t alter installed products during the inspection phase. If we find a warranty-eligible defect, we document it with photos and thermal imaging so you can file directly with your installer or Johns Manville.
We source materials from Johns Manville, Owens Corning, Knauf, Rockwool, and other manufacturers - no proprietary lock-in. For warranty repairs, we use OEM-specified products. For non-warranty work, we’ll quote both OEM and quality aftermarket options with the performance difference explained in writing.
Patching is cheaper short-term, but in Converse’s climate it’s usually false economy. We’ve audited homes where three patch jobs over 10 years cost more than one proper removal, air sealing, and reinstall - and still performed worse on the blower-door test. We show you both numbers and let you decide.
Most Converse homeowners get an appointment within 48 hours, same day if you call early morning. The audit itself takes 2-3 hours, and your written report with photos and blower-door numbers is delivered within 24 hours. Call (830) 420-0953 to check today’s availability - estimates are free.
Spider installs to a labeled R-value at a specific density, but Converse’s humidity cycles cause gradual compaction in attics without adequate air sealing. We see this in homes near Rolling Ridge Drive and Woodlake - the product isn’t defective, but it was installed over an unsealed envelope. Our audit measures actual R-value against labeled R-value and identifies where the air sealing should have happened first.
Written by Wes Okafor, Owner & Lead Insulation Technician, Topside Attic Insulation Converse at Topside Attic Insulation Converse, serving Converse and nearby areas.