Attic storage - really stupid question

Old 01-16-07, 04:01 PM
Thread Starter
Join Date: Feb 2006
Location: USA
Posts: 128
Received 0 Votes on 0 Posts
Attic storage - really stupid question

I know this will sound really stupid, but here goes . . . we have a cape cod home with knee walls. We've had some moisture and ventilation issues with our knee walls and attic area. I've been storing stuff in cardboard boxes (nothing is damp, no silverfish found in knee wall areas) and am thinking of changing to those plastic storage containers (for dust and future bug issues). Might it be too hot in the summer for the plastic containers? Will the plastic containers "sweat". Also, do cardboard containers act as any type of additional insulation, absorbing heat in the summer? Thanks for any insight.
Old 01-16-07, 04:13 PM
Join Date: Aug 2000
Location: USA
Posts: 15,817
Received 0 Votes on 0 Posts
Plastic container storage is a more durable option for attic storage. Items in containers should be able to withstand extreme temperature changes. For instance, candles will likely melt in summer. Liquids would freeze in winter. Plastic containers should not sweat.

There should be adequate insulation. All gaps that allow warm, moist air to escape into attic from below should be sealed. Vapor retarder on batt insulation faces downward to heated area below. How much insulation is in the attic? What R-factor? What is the recommended minimum R-factor for your area?

Is attic adequately ventilated? How is it ventilated? Adequate ventilation is a balance between air intake and air exhaust. Poor ventilation can contribute to melting of snow, ice dams, and moisture problems. One square foot of attic ventilation (both intake and exhaust) for every 300 square feet of attic space is needed, and this is divided equally between intake and exhaust. It is important that air intake and exhaust are balanced for proper attic ventilation.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: