Attic Insulation Is ImportantTwo of the most important features of a roofing system are proper ventilation and adequate insulation. If your roof doesn’t have enough ventilation, humidity and heat accumulate in the attic. This makes the rafters and deck rot and the shingles buckle. At that point, the insulation becomes ineffective. For that reason, it’s critical to keep all roof ventilation open and free of encumbrances, regardless of the season. This includes soffit vents, ridge vents and louvers. Correct ventilation keeps moisture from causing damage to the structure. Ventilation also enhances the life of the roofing material and cuts back on consumption of energy, while increasing the comfort of rooms beneath the attic. Insulation also has an important role in adequate attic ventilation. A well-insulated attic has these elements.
- A layer of insulation on the floor of the attic to keep the lower rooms from getting too hot or too cold.
- Plenty of open area and vented space for the air to flow in and out of the attic easily.
- A vapor retarder beneath the insulation that prevents moisture from accumulating in the attic.
- One inch of space between the roof deck and the insulation.