Icynene Attic Cleaning & Rodent Proofing in Boerne: What to Know First
We provide independent Icynene attic cleaning and rodent proofing in Boerne, with most jobs completed in one to two days and a written price delivered before any work starts. Typical turnaround from initial call to crew on site runs three to five business days, though we stock common Icynene-compatible materials for faster deployment when rodent damage has compromised your thermal boundary. This page is for Boerne homeowners who already have Icynene spray foam or hybrid systems in their attic and need cleaning, decontamination, or rodent exclusion that won’t void existing insulation performance. We’re not Icynene authorized, and we don’t need to be, we know how these specific foams behave in Hill Country heat and what happens when rodents compromise the assembly. Call (830) 529-7780 for a written estimate with no obligation.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic Max (open-cell) - moisture loading and compression: Classic Max is hydrophilic, meaning it wicks and holds water when roof leaks or condensation events saturate the foam surface. In Boerne, where spring storms drive water through compromised ridge vents and attic humidity spikes between March and June, we’ve pulled saturated Classic Max that had compressed from 3.5 inches to under 2 inches, losing R-value and creating a mold substrate. We remove the compromised foam, HEPA-vacuum the substrate, treat with botanical antimicrobial, and reinstall only after verifying the leak source is eliminated.
- Icynene MD-C-200 (closed-cell) - rodent gnawing at exposed edges: Closed-cell foams like MD-C-200 are dense, but rodents target the exposed edges where foam meets framing members, creating tunnel networks that compromise air sealing. The 2.0 lb density doesn’t stop determined roof rats, we’ve found entry paths chewed through 4-inch lifts in Timberwood Park-area homes where oak canopies touch rooflines. We cut back damaged sections, install galvanized steel flashing at all foam-to-wood interfaces, then patch with matching closed-cell density to restore the air barrier.
- Icynene ProSeal Eco (low-density closed-cell) - thermal drift in unconditioned attics: ProSeal Eco can exhibit thermal drift, a gradual R-value reduction, when attic temperatures exceed 140°F repeatedly. Boerne attics hit that threshold routinely in July and August. We identify drift zones with infrared imaging, remove degraded material, and specify replacement products rated for the actual temperature excursion history of that specific attic.
- Icynene H2Foam Lite - rodent urine crystallization in cell structure: The semi-open cell structure of H2Foam Lite traps rodent urine at the strut intersections, where it crystallizes and becomes a persistent odor source even after surface cleaning. Standard sanitizing won’t reach it. We remove affected lifts entirely, treat the framing with enzymatic cleaner at 48-hour dwell time, and reinstall with a vapor-smart replacement specified for the assembly.
- Icynene Classic Plus - debonding from OSB roof decks in high delta-T conditions: Classic Plus can debond from roof deck sheathing when repeated expansion-contraction cycles exceed the adhesive limits of the original application. This creates air gaps that rodents exploit and that blower-door tests reveal as sudden CFM50 spikes. We remove the debonded sections, mechanically abrade the substrate, and reapply with primer-specified adhesion protocols that account for Boerne’s 80°F+ daily attic temperature swings.
Our Icynene Attic Cleaning & Rodent Proofing Process

- 1
Attic assessment with photo documentation: We enter with full PPE, document every square foot with timestamped photos, and identify Icynene product type, installation date if discernible, and all damage vectors. You get this photo record before we leave.
- 2
Blower-door baseline and leak mapping: We run a pressurization test to establish CFM50 baseline, then use theatrical fog to locate active air leakage paths that rodents are using or that compromised foam has created. This number goes on your report.
- 3
Contaminated material removal and HEPA containment: We set up negative air containment, remove damaged Icynene and any soiled conventional insulation, and bag for proper disposal. No debris remains in the attic space.
- 4
Substrate treatment and rodent exclusion: Framing and decking receive enzymatic or antimicrobial treatment as indicated. We install steel mesh at all penetration points, seal top plates and can lights, and verify no entry path exceeds 1/4 inch.
- 5
Replacement and air-sealing verification: We reinstall with Icynene-compatible or alternative specified materials, run post-work blower-door test, and deliver printed pressure-differential report in pascals showing before-and-after performance.
- 6
Written completion packet: Scope of work, product data sheets, warranty documentation, and photo record delivered before final payment is processed. Under Haven Standard: Have it in writing.
What Icynene Attic Cleaning & Rodent Proofing Costs in Boerne
Most Icynene attic cleaning and rodent proofing jobs in Boerne run between $2,800 and $6,400 for attics in the 1,200 to 2,800 square foot range. What moves the price: extent of foam removal required (partial lift vs. full cavity), whether the roof deck needs antimicrobial treatment, and if we’re replacing with Icynene-compatible material or transitioning to an alternative like Reflectix in specific applications. Rodent exclusion with galvanized steel mesh at all penetrations adds $400 to $900 depending on complexity. Full attic restoration with HEPA decontamination, new vapor barrier, and complete insulation replacement at R-38 runs $4,200 to $8,600. We don’t quote over the phone without seeing the space, but we do deliver a flat written price at the conclusion of our assessment visit, no work starts until you have that number in hand. Call (830) 529-7780 to schedule.
Why Boerne Homeowners Call Topside Attic Insulation Boerne for Icynene Work

We’ve worked Icynene systems across the Hill Country, including a concentration of older homes near the Cibolo Nature Center where stack-effect air leakage was destroying cooling performance before insulation ever went in. Wes Okafor runs a blower-door test before and after every job, then hands homeowners a printed pressure-differential report so the numbers are on paper, not just a claim. Our 365-Day Done Right Promise applies to all completed work, and we stock materials from Icynene, Demilec, and Reflectix so we’re not locked into a single product line when your assembly calls for something different. Calls are answered by a live person 24/7, and every job opens with a written price and closes with a documented photo record. Seal the envelope first. Then fill it.
FAQs
Modifications by an independent service provider do not automatically void Icynene’s material warranty, but the original installation warranty from your certified applicator may be affected if the work alters the assembly in ways they didn’t specify. We document every product code and batch identifier before removal, photograph original conditions, and install replacement materials to published Icynene compatibility standards so you retain material-coverage eligibility. For warranty-sensitive jobs, we coordinate with your original installer when possible. Call (830) 529-7780 and we’ll review your specific warranty documents at no charge.
Most jobs complete in one to two working days, with larger restorations or full-cavity replacements extending to three days. We don’t rush the enzymatic dwell time when rodent urine is present, that 48-hour treatment is non-negotiable for odor elimination. You’ll know the schedule before we start, and we text when the crew is en route.
Partial repair is viable when damage is localized to less than 30% of the insulated area and the remaining foam passes adhesion and density testing. We core-sample suspect areas and test pull strength before recommending repair scope. When thermal drift, widespread moisture loading, or rodent tunneling exceeds that threshold, full replacement is more cost-effective than repeated patchwork. We show you the test results and price both paths so you decide from evidence, not pressure.
We stock Icynene Classic Max and MD-C-200 for common repair scenarios, and we source ProSeal Eco and H2Foam Lite with 5-7 day lead time when needed. For discontinued lines or when Icynene delivery doesn’t match your timeline, we specify density-matched alternatives from Demilec or Reflectix assemblies that maintain the air barrier performance your home was designed for. We never install incompatible density foam adjacent to existing Icynene, the thermal and vapor profile mismatch creates condensation risk.
We schedule assessment visits within 48 hours for active infestations, and we can deploy temporary exclusion measures same-day in emergency situations to stop entry while full remediation is scheduled. The permanent rodent proofing, insulation restoration, and blower-door verification follow in sequence. Call (830) 529-7780, a live person will answer and we’ll get you on the calendar.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.