Icynene Home Energy Audit Nationwide

Icynene Home Energy Audit in San Marcos: What to Know First

We provide independent Icynene home energy audit in San Marcos, typically scheduled within 48 hours and completed in a single visit. Most audits run between $275 and $550 depending on home size and test scope, with a written price delivered before we set up any equipment. This page is for homeowners who know they have Icynene spray foam in their attic, walls, or crawl space and need to find out why their energy bills are climbing, rooms won’t hold temperature, or the HVAC runs nonstop. Call (737) 337-8049 to book. We also service Reflectix systems.

Call (737) 337-8049

How Icynene Products Fail - and How We Fix Them

• Icynene Classic Max shrinks away from top plates in San Marcos attics. The open-cell formulation can pull back 1/8 to 3/16 inch from framing edges over five to seven years, especially in homes built during the 2018-2021 construction rush around the Texas State University corridor. We find these gaps with blower-door-directed smoke pencils and seal them with compatible low-expansion foam before the thermal imaging camera comes out.
• Icynene MD-R-200 overspray creates hidden air channels in kneewalls. This medium-density closed-cell product hardens too fast when applied in thin lifts during hot weather, leaving striated voids behind the foam surface. Our audit includes destructive testing at suspect kneewalls - we cut a 4-inch inspection plug, photograph the cavity, then patch and reseal.
• Icynene H2Foam Lite absorbs roof deck moisture in vented attics. The hydrophilic open-cell matrix wicks humidity when the roof above it breathes; we’ve pulled samples in San Marcos homes near the Blanco River that held 18% moisture by weight. We mark these zones for removal, dry the deck, and specify a venting strategy or closed-cell replacement.
• Icynene LD-C-50 degrades at duct contact points. This low-density product softens where it touches HVAC flex duct at temperatures above 140°F, common in San Marcos attics from June through September. Our audit maps every duct-to-foam contact and specifies a thermal break or reroute.
• Icynene ProSeal LE separates from OSB sheathing during seasonal cycling. The closed-cell formulation and wood substrate expand and contract at different rates; we see delamination starting at north-facing gable ends in homes off Ranch Road 12. We test adhesion with a pull probe and document the percentage of detached area for the repair scope.

Our Icynene Home Energy Audit Process

1. 1
   Call and scope. A live person answers, asks which Icynene product you have (check your build documents or the yellow tag left by the original installer), and emails a written price before we schedule.
2. 2
   Blower-door setup. We install a calibrated fan in your front door and depressurize the house to 50 Pascals - a standard pressure difference that lets us measure total envelope leakage in CFM50, cubic feet per minute at that pressure.
3. 3
   Thermal imaging with pressure differential. With the house under negative pressure, our FLIR camera shows exactly where outside air is being drawn through Icynene gaps, not just where the foam looks thin.
4. 4
   Insulation inspection and destructive sampling. We cut inspection plugs in suspect cavities, photograph the foam-to-substrate bond, and test moisture content with a pin probe.
5. 5
   Duct leakage test if indicated. We pressurize the duct system and measure leakage to outside; Icynene-sealed plenums sometimes hide disconnected collars that the foam has bridged over.
6. 6
   Written report and same-day review. You get the blower-door number, thermal images, inspection photos, and a repair scope with a second written price. No work starts without your signature.

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What Icynene Home Energy Audit Costs in San Marcos

Most Icynene home energy audits in San Marcos fall between these ranges:

What moves the price: home size, attic accessibility, number of Icynene application areas to inspect, and whether we need to set up containment for destructive sampling. Homes in the older neighborhoods off Hopkins Street with modified framing and multiple additions take longer to map. Every estimate is free, written, and valid for 30 days. Call (737) 337-8049 for yours.

Why San Marcos Homeowners Call Topside Attic Insulation San Marcos for Icynene Work

We’ve audited Icynene installations in San Marcos since 2016, from new builds in the Willow Creek corridor to retrofits in the historic district near downtown. Wes Okafor runs a blower-door test before and after every job, then hands the customer a single printed page showing the before and after air-changes-per-hour figure so the improvement is a number, not a claim. The R-value tells you how slow heat moves through the material - the blower-door number tells you whether any of that matters.

Our 365-Day Done Right Promise covers all work, and we publish before-and-after blower-door numbers on every applicable job. We’re not locked to any single brand - we source from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - so our repair specs use what’s right for your home, not what moves our inventory. Calls are answered by a live person 24/7. We also service Reflectix radiant barrier systems.

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