Truck crew is back from Great Northern Insulation on Jan 20 to complete the rest of the missing areas.
Here the area under the balcony is sprayed.
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 January 21st, 2015 January 14th, 2015More batt insulation today. I’m doing batt installation myself with help from my cousin. The reason for putting in the sweat equity is due to the unusual way this house is insulated. Your typical contractor will want to do it quick and won’t do the work well. Insulation is pretty simple to do and so doing it myself allow the work to get done slowly and well. The north wall is a fire rated wall, so no spray foam is allowed in the wall assembly. Instead, we are cutting Roxul ComfortBoard R6 to fit in the 2×2 stud space. We then fill the 2×6 space with Roxul ComfortBatt R22.
January 13th, 2015Today, I started on doing batt insulation over the spray foam. The spray foam for the 1st & 2nd floor walls is about 1.5″ – 2″ thick just filling the 2×2 stud space. The 2×6 studded wall cavity will be filled with R22 Roxul batt. Here I started on the east side wall.
January 12th, 2015The production supervisor from Great Northern Insulation came by, using a Froth-Pak which has a smaller spraying gun and longer spraying distance, he tried to address all the ares that were problematic to access by the truck crews. The Froth-Pak foam is a 1.5 lb / ft3. While the purple WALLTITE ECO is 2 lb / ft3. Forth-Pack foam has an R value of 5.5 while WALLTITE ECO has an R value of 7. However, because these areas have access problem, Froth-Pak will just have to do. Here it is the Froth-pack applied to the opening left behind by the WALLTITE ECO.
December 23rd, 2014Two day before Christmas day, Great Northern Insulation scheduled to have the rest of the spray foam insulation done today.
December 10th, 2014Spray foam insulation day 2 by Great Northern Insulation. I am already informed that they are expected to get to first floor but definitely not going to finish at the end of the day. The next 3 week, they are booked solid. So I will likely need to finish the foam insulation in the new year. Here’s the 2nd floor bedroom. You can see the steel beam pocket / rim joist all fully sprayed. The 2×2 strapping is filled and the 2×2 wood is slightly covered too to give that air barrier. If you keep up to date with building science, you will know that air movement actually degrades the thermal performance of a wall much more than you would think. So a good air barrier is a must if you want a good performance for your walls.
December 9th, 2014I’ve booked Great Northern Insulation for my spray foam installation. The north wall of the house has to be fire rated and the city inspector does not allow me to put any kind of spray foam in that wall unless I have engineer stamped drawing. For the east, west and south side wall of the house, I’m spraying 1.5″ of foam to seal the wall. Then I will fill the rest of the wall cavity with Roxul mineral wool insulation. Since steel is not combustible, all the steel beams including the ones on the north wall will have the beam pocket sprayed to minimize thermal bridging. On the 3rd floor the east, west and south side wall will be filled with spray foam since the wall there is thinner than the rest of the house. And the entire roof including the one on the 3rd floor will be spray foamed. All the rim joists will be sprayed foamed and the basement wall will be spray foamed. The produce they are using is BASF WALLTITE ECO or the purple foam insulation that you see in all those home improvement shows you see on HDTV. With half day of work, they have finished spraying the 3rd floor. Here’s all wall cavity on the 3rd floor. As you can see the entire 2×6 wall cavity filled. with foam insulation.
November 28th, 2014Bought a set of scaffold from Home Depot. I wanted to do some insulation work myself. So scaffold will allow me to work on the opening area where the walls are two stories high more safely. These 6′ units can be stacked on top of each other to create an 12′ high scaffold. It also came with guardrails for the top.
I also bought screw jack legs for the scaffold so that they can be setup on uneven ground. I am using it already for my window caulking work which is still ongoing.
November 15th, 2014More sweat equity work today. Went up to the 3rd floor and removed the soffit installed. This way the electricians can run the wires for the soffit lights.
August 31st, 2014More sweat equity work that I’m putting into this house. The HVAC work is schedule to happen next week. However, on the duct wall, once the duct is in place, it is next to impossible to access the walls behind for insulation. So I will be filling these wall cavities with insulation now so that I don’t have a big headache later. In my post “Exterior wall construction with Swedish roots“, I shows that my wall has a 2×2 outside strapping and a 2×6 framing. So to fill the space I will be inserting Roxul ComfortBoard into the 2×2 space. Then followed by Roxul ComfortBatt in the 2×6 stud space. The 1.5” thick Roxul ComfortBoard gives you R6 and I am using R24 Roxul ComfortBatt here. Giving me a total R value of R30. The exterior EIFS has another layer of Roxul ComfortBoard on it. So my north wall here should have a insulation value of over R36. I was targeting R40 for the walls and this is close enough. Here’s what a typical wall construction in the house looks like.
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