Plumbing Vents Covered with Frost

- As the frost keeps accumulating with very cold temperatures, eventually the vents get completely blocked with frost, which prevents them from ‘venting’. .   I’ve included several photos here to show that all types of vents can be subject to frost closure, given the right weather conditions ..More

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Poorly Insulated Eaves at Old Houses

- .  The illustration below, provided by the Minnesota Department of Commerce, Division of Energy Resources, shows what this method looks like.  It’s not necessary to have the entire attic lid insulated with spray foam, but having spray-foam insulation installed at the eaves is a great way to help compensate for the lack of space at these locations. The best approach in these situations is to use an insulation with a higher R-value per inch – specifically, closed-cell spray foam insulation ..More

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Who Inspected Your Attic?

-  That might have been partially true with older insulation, but not the new stuff installed today.  The footnote for the minimum settled thickness says “This product shows negligible settling. . ”  They’re the same.  Notice the two numbers given – “Minimum Thickness” and “Minimum Settled Thickness. Here’s a close-up. ”  I’ve had many people try to explain to me that the depth I’m reporting isn’t relevant because insulation settles so much ..More

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Short Nails in Shingles

- .  The photo below shows proper 1-1/4″ nails sticking through the roof sheathing on the attic side. The other way to determine if the proper nails were used is to look in the attic; if the roof has 1/2″ sheathing, you should be able to see the nails sticking through in to the attic ..More

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Illegal Plumbing Products in Minnesota

-  They’re always a no-no. . Rubber fittings used on drains or vents like the one shown below can sag or collapse ..More

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