Insulation Options for Sloped Attics

Sloped attics present unique challenges for insulation due to limited space and uneven surfaces. However, with the right materials and installation methods, you can achieve excellent energy efficiency and comfort.

The main goal is to ensure continuous thermal coverage without blocking airflow. Insulating between rafters, knee walls, and hard-to-reach corners requires both flexibility and precision.

Best Materials for Sloped Spaces

Spray foam is a top choice because it expands to fill irregular gaps, offering a tight seal. Rigid foam boards are also effective for narrow slopes, providing consistent R-value and moisture resistance. According to spray foam insulation guidelines, maintaining proper ventilation channels between insulation and roofing prevents condensation and damage.

For DIY projects, consider blown-in cellulose for even coverage across tricky angles. Whichever method you choose, always prioritize moisture barriers and air sealing to ensure long-term performance in sloped attic environments.

Spray Foam Insulation Indianapolis
105 N Sherman Dr Indianapolis, IN 46201
954-512-4889