Construction Products That Don't Work: Butyl Tape

by Cody Farmer

 In watching the above video (recorded by myself and featuring Master Craftsman, Felipe), you can already see the direction I’m going with this – butyl tape is one of those construction products that needs to die a swift death because it just doesn’t do the job right! I don’t expect you to just take my word as gospel truth, so let’s dive into some facts.

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Cannabis & Energy Recovery & Ventilation

by George Sickler

With Earth Day just around the corner and spring-time allergies inching in, it reminds us of the newly acknowledged 420 holiday. So we thought we’d talk about retrofitting a fresh air system and why our options are the best for the Colorado Climate. For the second time in a row, cannabis sales outpaced alcohol sales in Colorado but it's illegal to consume outside. With the newly acknowledged holiday 420 right around the corner, I'm afraid there will be some smelly buildings!

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420 Tip of the Day: How to Eliminate Home Odors

by Cody Farmer

It’s quickly becoming that time of year again. Spring is inching in, people are planting seeds, kids are getting super excited to be outside, spring skiing, Lent, soccer, Easter, baseball, EARTH DAY and the newest Holiday of All: 420.

Yup... I’m going there today folks! We can’t avoid it any longer because we are clean air people!

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Why Bathroom Fans are a Bad Idea

by Cody Farmer

We are always ranting about how our ERVs clean up the interior air all the while saving up to 90% of the energy. In our application of the Passive House principles, we replace the bathroom fan with a recovery exhaust duct. We’ve not really discussed how this works, where the bathroom fan does not. It is our opinion that the bathroom fan removes one pollutant while bringing in another.

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Surgery for Your Home

by Cody Farmer

I watched a movie a while ago where the hero had multiple bullet wounds and knife wounds but he makes it home to patch himself up. He pulls out all the bullets, dumps alcohol on it, and then puts a bandage on it. Sounds logical, right? Of course not. I’m being facetious. That doesn’t sound logical at all. In reality, if someone has a bunch of bullet wounds, he/she is probably not going to be able to repair all of that internal damage with just alcohol and a bandaid.

If you’ve done a blower door test as we suggested in last week’s blog, you’ve probably discovered just how leaky your home is. Maybe your home has been shot full of holes for a while. You’ve done your best to patch it and take good care of it, but, like the example above, your home may have serious trauma. It may need more than a few bandaids – it may need professional help.

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Is your home leaky?

by Cody Farmer

  • - Can’t maintain even temperature throughout the whole house.
  • - Heater or AC comes on frequently throughout the day to compensate.
  • - You sometimes feel a draft for no reason at all.
  • - Your 12-year-old thinks the cold spots are ghosts.
  • - Your seasonal allergies seem the same or worse while inside.

These are all signs of a leaky house, but even without noticing these symptoms, most homes have several leaky areas they’re not even aware of.

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Log Cabin vs Moisture Build-up Part II

by Cody Farmer

Last week, we looked at rain inside a non-vented vaulted roof cavity in the Rocky Mountains. This week we’ll delve into the proper roof assembly. By following the 7 Passive House Principles we’ll see that Step 1 would have shown us that there was a dew point risk under the wood decking, a lack of insulation, a large thermal bridge with the 2x12, and an air gap between the roof decking and insulation allowing for moisture to really collect and saturate the deck.

Press on to step two we would find that the climate zone is a 7 and instead of r-38 the roof assembly would need to be R-70 without framing thermal bridges and an interior vapor barrier Intello plus taped and sealed with Tescon Vana to all penetrations. The traditional can lights were encouraged to be changed to the shallower LED look-a-likes to keep the intelligent vapor barrier, Intello consistent. An example from our supplier below.

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