How to keep mice, critters from getting into duct insulation that is under a house that is on piers.

How do you keep mice, critters from getting into duct insulation that is under a house that is on piers?

Views: 234

Reply to This

Replies to This Discussion

A former owner where I did some repair work had evidently tried to keep the rodents out by nailing a flattened tin can over their entrance. Mice or rats I never determined, but they chewed right through that makeshift cover and continued to use the rafters as they wished. 

At a minimum I would recommend T&G plywood and hope they wouldn't be able to detect any warmth from above.  When the cold season comes they would make short work of 3/4" plywood.

There are some concrete based 4'x8' panels that besides being heavy might be better at keeping them out.  Of course mice will be a lot easier to stop than their larger cousins.

An abundance of traps to eliminate them before they start chewing their way in is always a good defense.  I try to avoid poisons and local domestic animals might be affected.

Bud

If your ducts are below the bottom sheathing I would wrap them or box them in with metal.

The ducts are below the floor and above the dirt under the houses. It sounds difficult and expensive to wrap them or box them in with metal.

mothballs have worked for decades

You have to keep it out of their reach thus a Sealed crawl is the best option

For a vented crawl, make sure all your insect & rodent proofing is in place also; Using flex duct is not recommended, nor fiberboard, just metal ducts sealed with insulation on the outside. Better to have to make a few cosmetic repairs occasionally then let them get into the system.

If an existing issue, how are they getting in, in some cases it is from above & that needs to be dealt with also: http://blog.sls-construction.com/2010/safety-sunday-rodent-prevention

We have used hardware cloth (1/4" mesh wire) and then sprayed it with single part foam. I have heard of used cat litter (urine smell) sprinkled about and moth balls as other options.

RSS

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Profile IconSheila Stewart, Gina M. and Brian J. Mulhern joined Home Energy Pros
12 minutes ago
Rob Madden, Solar Home Broker commented on Alicia Hobbs's blog post 5 Solar Facts that You Should Know
"From personal experience, that $20,000 savings over 20 years will be a low number based upon the…"
16 hours ago
Rob Madden, Solar Home Broker posted a blog post

Phoenix Solar Home Sales Jump in September

The number of solar home sales in Phoenix jumped 13.6 percent from the previous month, according to…See More
16 hours ago
Casey Gesell replied to Trip Smith's discussion Where to spend my marketing dollars?
"Trip, Check out our sister company Contractor Nation: https://www.contractornation.com/ Pay Only…"
18 hours ago
Casey Gesell posted a discussion

Looking for home improvement companies to join our dealer network!

My name is Casey Gesell and I'm the Business Development Manager at Dr. Energy Saver, Inc.Dr.…See More
18 hours ago
Casey Gesell replied to Trip Smith's discussion Starting a Home Weatherization Business. Considering it...
"Hi Trip, Check out our website: www.drenergysaverdealerships.com "
18 hours ago
Alicia Hobbs posted a blog post
18 hours ago
Mark Wozniak posted a status
"I am looking for energy efficiency software training in Massachusetts."
20 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service