Posts Tagged With: Marquette

Vapor Barrier Going Up

May 4, 2014 – After taking the last few weekends off from building it was time to get back on track. I was working without Pete for the first time; he stayed in Marquette for the weekend to supply sugar maple logs for a shiitake mushroom growing workshop. The trees were cut from our property and in return for supplying the trees we were given 10 inoculated logs. It will take about a year before they produce any mushrooms, but once they start the logs should be productive for at least 5 years. I was able to make it back to Marquette in time to attend the workshop and I took some photos that I’ll post soon.

I finished spraying foam around the windows and filled the cavity of the wheel wells with spray foam as well. I was very fortunate to have help from my mom this weekend. She helped stuff extra insulation in the areas the blower hose missed and helped me put up most of the vapor barrier. It definitely would have been a near impossible task for one person; thanks mom!

Initially Pete and I were going to skip the vapor barrier. It’s been important to me to use as few toxic/off-gassing materials as possible within reason and I really did not want to wrap the house in plastic. We’ve also seen several other tiny house builders hand place wool insulation behind the tongue and groove walls, skipping the vapor barrier. However, my brother the builder strongly suggested we put up a vapor barrier. Not only will it help keep condensation out of the walls, it will also increase our R-value which is super important in our climate. Especially since we will be heating with propane and propane is not cheap! So, we sucked it up and bought a 100′ roll of 6 mil poly vapor barrier. I did read on some website that this type of plastic doesn’t do much off gassing and isn’t that toxic; however, I had a hard time finding any sort of information regarding environmentally friendly vapor barriers. Either way, I’m telling myself it’s perfectly healthy because it’s a done deal. I do plan on keeping the windows of the tiny house open all summer to help speed/eliminate construction material off gassing; it is after all a very tiny space!

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