Fiberglass Batts DIY Guide

Adding insulation to your new home or pole barn is a low-cost way to dramatically improve energy efficiency. Often overlooked in the push to frame houses quickly, proper installation of fiberglass or other types of batt insulation can make your building more comfortable while significantly lowering heating and cooling costs.

A popular option is attic insulation, which comes in pre-cut sheets to fit between wall studs or ceiling joists. The batting is easy to work with and doesn’t require specialized tools, making it a popular choice for do-it-yourselfers. It is available in a wide range of thicknesses to meet energy standards, with R-values varying by climate.

Fiberglass Batts DIY Guide: Beginner-Friendly Instructions

To install fiberglass batting, position the insulated sheets in between the studs, positioning them snugly to create a friction fit between the studs. If the batting isn’t thick enough, use a utility knife to cut it to size. Be sure to wear safety equipment, including a two-strap mask rated for fiberglass, a hat, heavy gloves and goggles, as the fiberglass can irritate your throat and skin.

If you encounter obstructions like pipes or electrical wiring, cut slits in the insulation around them to ensure they don’t get compressed, which reduces the R-value. If you’re unsure how to handle such an obstacle, consult your local building supplier for advice. In some cases, the best solution is to remove the obstruction and insert the insulator in the space around it. This will be more costly than simply filling the area with the batting, but it may offer the most enduring and cost-effective solution for your building.

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