How To Look At A House

McGarry and Madsen's home inspection blog for buyers of  

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Do I have to tent the house if I have termites?

Friday, July 20, 2018

Not always, because this treatment is used only for Drywood Termites. If the evidence or damage outlined on your WDO (Wood Destroying Organisms) report indicates Subterranean Termites, other treatments will be recommended. Shed wings, small egg shaped and ridged fecal pellets and galleries (hollowed-out wood) will indicate Drywood Termite infestations. 

    If only one small area of Drywood Termite damage is discovered during a WDO inspection the pest control operator may choose to either remove and replace the affected wood or do a "spot" chemical treatment in the surrounding area only. However if multiple areas or a larger area of damage are noted, tenting would be the appropriate treatment, and the only way to be absolutely sure you have eliminated the infestation is tenting. 

    The tenting process involves completely covering the structure with tarp panels to create a sealed volume of air, then pumping in a fumigant gas. Vikane, Master Fume and Zythor are a few common brand names, and the active ingredient in all of them is sulfuryl fluoride. The gas kills just about anything living inside the tented area, including roaches, ants, and small lizards, but it provides no residual protection after the tent is removed.

    Heat can also be used to kill Drywood Termites within the wall framing and is another option that is occasionally chosen. Tenting and heating the interior of the structure to approximately 140º F will produce a temperature inside the wood framing members of about 120º F that kills both the termites and their eggs.

    The range of treatments for Subterranean Termites includes perimeter chemical barriers, which are either placed in the soil surrounding the house or pumped into the concrete block foundation through drilled holes. Baiting systems that utilize in-ground canisters containing poisoned wood can also be installed encircling the home to reduce or eliminate a termite infestation.

    Also, see our blog post What is the difference between a subterranean termite and a drywood termite?

• • • • • • • • • • • • • • • • • • • • • • • • • • •  

To learn more about termites, see these other blog posts:

Should I be worried about termites if my neighbor's house is being tented?

Is the WDO (termite) inspector allowed to poke holes in my wood siding and trim? 

Do carpenter ants cause structural damage to houses in Florida?

How long before closing can you have a WDO (termite) inspection done?

How long does Bora-Care® last? 

 Why is it a mistake to store lumber in the crawl space under a house?

Does the presence of carpenter ants in a house indicate that there are probably also termites? 

How do termites infest a house and remain hidden while doing major damage?

Are homes in Florida required to have termite protection? 

If termite damage appears to be old, does that mean that termites may no longer be present?

How do I know if my WDO/termite report is "clear"? 

When do termites swarm in Florida?

Does a recent termite company inspection sticker mean there are no termites? 

Can a mobile/manufactured home get termites? 

What is the difference between a subterranean termite and a drywood termite?

What are the green plastic discs in the ground around the house? 

What is a termite shield?

How do termites get into a concrete block house? 

Do termites eat concrete?

Does wood chip mulch in the yard attract termites?

I think I have termites. What does a termite look like?

I'm buying a concrete block house. Do I still need a termite inspection? 

• I saw a little termite damage on the baseboard. Should I be concerned?

   Visit our TERMITES, WOOD ROT AND PESTS page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.  

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