Items to Avoid

• Do not use thin or flimsy material such as cardboard or plastic for the cover. The material must be able to support additional insulation and remain airtight.

Items to Incorporate

• Be careful around the openings of shafts and drop ceilings. Only use the joists and rafters to move around on. Do not step on the ceiling.
• Thoroughly seal around the opening cover and all adjacent framing.