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A NEW EXTERIOR – Part II

September 9, 2016

In the last post we covered tearing off the first layer of siding, see here if you missed it.  Today I’m going to outline how we went about the process of re-siding the upper and lower parts of the house, some inspiration and the materials we used.

BEFORE

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The shingles were in pretty bad shape in spots so instead of saving them we opted to tear it all off (both the top and bottom sections) and continue the lap siding all the way up the side of the house. You can still see where the green press board is stuck under our electrical piping, and if you look hard you can see the outline of the original house numbers over the door.

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When  we tore off the shingles on the upper half of the house we found that the tar paper stopped at the first floor rim joist. This may have been done to help the attic breath, but it also meant that there was no secondary moisture barrier. House wrap functions as a weather-resistant barrier, preventing rain from getting into the wall assembly while allowing water-vapor to pass to the exterior. If moisture from either direction is allowed to build up within stud or cavity walls, mold and rot can set in and fiberglass or cellulose insulation  will lose its *R-value due to heat-conducting moisture.

*R-value is a measure of thermal resistance for materials such as walls, panels and insulation, it gives an indication of how quickly they will lose their heat. The higher the value of R, the better the thermal performance and heat retention of the material or assembly, and the slower any heat loss.

BACK OF HOUSE

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We covered it with Tyvek home wrap down past the existing tar paper, which meant removing two laps of the cedar siding and replacing it after the home wrap (seen below) so that we’d have a water-tight membrane.

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Following the application of the home wrap we continued the beveled cedar siding up the rest of the main house, and the annex off the back of the house.

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AFTER

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All finished! Please ignore the obscene bathroom window that refuses to close – hence the tape! The new one is sitting in the garage but we’re waiting to tackle the bathroom after the exterior is finished. Stay tuned for how we chose our exterior paint color up next!

Materials List:

  • Pre-primed finger jointed (6 x 1/2) bevel Cedar siding. *Compton Lumber is our go-to for all wood products in Seattle. They are friendly, knowledgeable and the quality of their wood products beat out big box home improvement stores by a long shot.
  • Stainless Ring-shank nailsStainless steel is recommended as Cedar reacts with certain metals. Ring-shank is important because the nail acts like a screw, where once it nailed it will resist backing out. Found here: Home Depot
  • Tyvek Home Wrap. Found here: Home Depot

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