Net & Blow Fiberglass Insulation in Lafayette, LA
Standard fiberglass batts work well in simple, rectangular wall cavities, but plenty of homes have wiring, plumbing, or framing quirks that leave gaps around a pre-cut batt. Net and blow insulation solves that problem by fitting itself to the exact shape of the cavity instead of asking the cavity to fit the insulation.
At Butcher Insulation, our net and blow process starts with a fabric netting installed over the open wall cavity, which holds loose fiberglass in place as it’s blown in behind it. The result is a dense, even fill that reaches into corners and around obstructions, all without leaving the gaps or voids that can come with a batt that doesn’t quite fit.
Where Net and Blow Fiberglass Insulation Makes Sense
Net and blow is most often used in new construction and major renovations, where wall cavities are open and accessible before drywall goes up. It’s a strong option any time a wall has framing that doesn’t line up with standard batt sizes, or when a contractor wants denser coverage than a batt alone provides.
Net and blow tends to be the right call for:
Because the process requires open access to the cavity, it isn’t typically used to retrofit existing finished walls. For those projects, blown-in insulation through smaller access points is usually the better fit.
Net and blow insulation is a method where fabric netting is stretched and secured over an open wall cavity, then loose fiberglass is blown in behind it under pressure. The netting holds the material in place while it densely fills the cavity, including corners and areas around wiring or plumbing that a pre-cut batt might not reach as completely.
Battt insulation comes pre-cut to standard sizes and is fitted into wall cavities by hand, which works well for simple, rectangular spaces. Net and blow is blown in loose behind netting, allowing it to conform to the exact shape of the cavity. That makes it a better option for irregular framing, angled walls, or cavities with obstructions that a standard batt can’t fully surround.
No. Net and blow insulation is a dry installation method, unlike spray-applied products that require a curing or drying period. Once the netting is filled and the coverage is checked, drywall installation can proceed without any waiting period, which helps keep new construction and renovation projects on schedule.
It’s most practical for new construction or renovation projects where wall cavities are already open and accessible. In an existing, finished home, opening walls just to install net and blow usually isn’t worth the added labor and drywall repair.
Blown-in fiberglass through smaller access points, spray foam in accessible cavities, or a batt replacement are typically more practical options for those situations, and our team can recommend the right fit after an in-person assessment.
R-value depends on the depth and density of the fill, which is determined by the wall cavity’s dimensions and how densely the fiberglass is packed during installation. Because net and blow allows for a denser, more complete fill than a batt in the same space, it can achieve strong coverage in cavities where a standard batt would leave gaps.
Insulation Expertise Passed Down, Not Outsourced
Butcher Insulation grew out of Butcher Air Conditioning, a four-generation family business that’s served Acadiana for decades. That experience carries into every net and blow project, from new construction to renovations, with a crew that treats each wall cavity like it matters.
Fill In the Gaps with Net and Blow Insulation
Wall cavities with wiring, plumbing, or odd angles deserve insulation that actually fits them. Reach out to see whether net and blow insulation makes sense for your new build or renovation, and get a straight answer before any work begins.
