We have interior doors that appear to be hollow and filled with Styrofoam beadboard. For a time we had mice getting into these and shredding the Styrofoam, presumably to make nests. I’m glad to say that since we managed to exclude mice from the building, this problem has gone away. No-pne wanted to dismount the (large) doors to put metal plates on the bottom…..
Best, Helen Helen Coxon Senior Conservator, Preventive Conservation Royal Ontario Museum 416-586-5897 From: pestlist@googlegroups.com <pestlist@googlegroups.com> On Behalf Of Pollack, Richard J Sent: Friday, January 29, 2021 2:27 PM To: pestlist@googlegroups.com Subject: Re: [PestList] Door Sweep Recommendations [EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. Dan, For hollow doors that are on the interior of a building that is under temperature control, then there would seem little value to weep holes. In those cases, the holes can be blocked. A small square of aluminum flashing, held in place with an appropriate adhesive (I like silicone) works wonders. If you’re able to get your fingers under the door easily, then the repair is simple. Sometimes, the doors need to be removed from their hinges. That’s best left to locksmiths or other door repair folks. If the door is in an area that suffers from temperature and humidity fluctuations (as with an exterior door), then consider a metal mesh. I’d select something that is not oxidizing. Stainless steel hardware cloth works well. Xcluder fabric will breath and allow water to pass, but it would be difficult to secure it in place. I recommend that all doors be inspected and modified prior to installation. It is far more costly and difficult to mitigate after the doors have become mouse condos. In any case, be sure that any modifications do not compromise the fire rating of the door. If in doubt, ask someone skilled in that arena. -Rich From: <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> on behalf of Dan Wixted <dj...@cornell.edu<mailto:dj...@cornell.edu>> Reply-To: "pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>" <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Date: Friday, January 29, 2021 at 2:17 PM To: "pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>" <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Subject: RE: [PestList] Door Sweep Recommendations Richard, Thanks! In cases where they are weep holes, would you recommend the metal mesh to allow moisture to escape? I’m wondering if there are issues of weep holes are completely sealed. Dan Wixted Pesticide Management Education Program (PMEP) Cornell University Ph (607) 255-7525 525 Tower Road FAX (607) 255-3075 CALS Surge Facility psep.cce.cornell.edu<https://urldefense.proofpoint.com/v2/url?u=http-3A__psep.cce.cornell.edu_&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=GO7C3XN3WgFy2IP-bFBbnUs_CYntqj57Dprtl40-_KE&m=EWjuuzxf72zsTQ-n_TTdO9nLj7-HwBtyc4UL_zZ2N4g&s=pbxOBTuivefOAxqSsGdyiy9tbUFMXzhqj5lMoD_8dSY&e=> Ithaca, NY 14853 dj...@cornell.edu<mailto:dj...@cornell.edu> From: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> On Behalf Of Pollack, Richard J Sent: Friday, January 29, 2021 2:05 PM To: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> Subject: Re: [PestList] Door Sweep Recommendations Dan, Those holes are sometimes weep holes, but other times they’re formed into the door bottom to help with handling during manufacturing. Mice readily find these portals to an attractive and comfortable abode. I posted some images and suggestions here: https://www.linkedin.com/posts/richard-pollack-6818997_pests-pestmanagment-mice-activity-6701094144204451840-PrI_<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.linkedin.com_posts_richard-2Dpollack-2D6818997-5Fpests-2Dpestmanagment-2Dmice-2Dactivity-2D6701094144204451840-2DPrI-5F&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=GO7C3XN3WgFy2IP-bFBbnUs_CYntqj57Dprtl40-_KE&m=EWjuuzxf72zsTQ-n_TTdO9nLj7-HwBtyc4UL_zZ2N4g&s=cLWZXW-jMj1M8x3T5JeG-qVlphFZ8fny_DAwVA34VjA&e=> Richard J. Pollack, PhD HARVARD UNIVERSITY Environmental Health and Safety (EH&S) Senior Environmental Public Health Officer 46 Blackstone St. Cambridge, MA 02139 Office: 617-495-2995 Cell: 617-447-0763 www.ehs.harvard.edu<http://www.ehs.harvard.edu> richard_poll...@harvard.edu<mailto:richard_poll...@harvard.edu> Subscribe to the Harvard EH&S COVID-19 literature review: https://web.calists.harvard.edu/mailman/listinfo/ehs_eph_covid19_literature_review From: <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> on behalf of Dan Wixted <dj...@cornell.edu<mailto:dj...@cornell.edu>> Reply-To: "pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>" <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Date: Friday, January 29, 2021 at 1:51 PM To: "pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>" <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Subject: RE: [PestList] Door Sweep Recommendations Regarding Jef’s comment below, I believe the structural holes in the bottom of metal doors are weep holes, put there to allow moisture to escape. I can see where they could provide harborage for pests, but I wonder if it would be better to screen them than to cover them; a question to ask the door manufacturer, I think. --dan Dan Wixted Pesticide Management Education Program (PMEP) Cornell University Ph (607) 255-7525 525 Tower Road FAX (607) 255-3075 CALS Surge Facility psep.cce.cornell.edu<https://urldefense.proofpoint.com/v2/url?u=http-3A__psep.cce.cornell.edu_&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=GO7C3XN3WgFy2IP-bFBbnUs_CYntqj57Dprtl40-_KE&m=r_OjRSq8Cll4O87BbKcYGnzCDp1vN29ukRxr9fTno0Q&s=ALcLscSSdNi717uKI4jAd2KNTPNh2kO75LSCX0MWM-Q&e=> Ithaca, NY 14853 dj...@cornell.edu<mailto:dj...@cornell.edu> From: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> On Behalf Of Jef Taylor Sent: Friday, January 29, 2021 12:34 PM To: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> Subject: Re: [PestList] Door Sweep Recommendations I find single-blade doorsweeps almost useless, but that's mainly because my museum is actually a zoo, and mice are a constant gnawing presence. Xcluder sweeps are the best single blade doorsweeps against mice, which quickly chew through vinyl or bristles in a very short time. I had another problem, which is hollow metal doors with structural holes on the bottom surface (where you can't see) which mice and insects love to use as harborage. I ended up switching to the first style of doorsweep you showed (an inexpensive similar product made by Frost King) to cover these holes. On Fri, Jan 29, 2021 at 10:46 AM alison_castaneda <alison_castan...@fitnyc.edu<mailto:alison_castan...@fitnyc.edu>> wrote: Greetings PestList, The Museum at FIT is looking to upgrade our door sweeps and would greatly appreciate any input or recommendations. We currently have this style: [cid:image001.jpg@01D6F64B.E7819E60] However, due to the frequently uneven floors, gaps are apparent beneath the sweep. We're looking at this style: [cid:image002.jpg@01D6F64B.E7819E60] We hope that the face-mount style will provide flexibility for uneven floors that the under-mount style did not. Does anyone have preferred brands or words-of-wisdom for the replacement process? Any input is greatly appreciated. Thanks in advance, Alison Castaneda Associate Conservator, MFIT -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to pestlist+unsubscr...@googlegroups.com<mailto:pestlist+unsubscr...@googlegroups.com>. 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To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/289A68B5-8E70-437E-A02E-193E78EF72CA%40harvard.edu<https://groups.google.com/d/msgid/pestlist/289A68B5-8E70-437E-A02E-193E78EF72CA%40harvard.edu?utm_medium=email&utm_source=footer>. Following guidance of the Ontario Chief Medical Officer of Health, the ROM is temporarily closed to the public. Visit www.rom.on.ca<https://www.rom.on.ca> for further updates. ________________________________ Suivant les conseils du médecin hygiéniste en chef de l’Ontario, le ROM est temporairement fermé au public. Des mises à jour seront publiées à www.rom.on.ca/fr<https://www.rom.on.ca/fr> -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to pestlist+unsubscr...@googlegroups.com. 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