Wednesday, July 30, 2008

Rock Row is Officially Earthquake Proof...

... At least the two slabs and sill plates are.

The framers are cruising along undetered by yesterday's 5.4 quake. After setting the sill plates they lay the top plates on top and mark the stud location and hold downs, this ensures that the walls will be straight and aligned properly. Then they add the studs and beams per the spray paint on the slab and tilt up the walls. The houses go from no walls to walls in about 3 hours.

Monday, July 28, 2008

Framing Layout

Framers laid out the walls today.

Orange= Shear wall callout

Red= Framing size and location

Green= Hold down call out

All the anchor bolts and shear wall hold downs were placed in the correct locations. Woohoo!

The dirt and 2x12 in the second picture are holding down plastic that Hardy put on the garage slab to ensure it doesn't crack. Keeping concrete moist for the first 7 days also makes it 40% stronger.

Friday, July 25, 2008

Slabs Poured

With the slabs in, the project now feels permanent. Both slabs and footings used about 70 yds. of concrete combined. That's about 231,000 lbs. of foundation.

Tuesday, July 22, 2008

Concrete Pour

The rebar was set last week as well as the electrical and plumbing underground. Today we are pouring the first concrete. The foundation is slab on grade so this first pour is only for the footings, not the slab. Then in a couple days, after the plumbing trenches are backfilled and the sand and visqueen are added, the slab will be poured.

One problem we encountered today was that the concrete pump broke. On a hillside project, like the one we did below, this would have ended the day but since the lot is flat we can just pour straight from the truck. We love flat lots.

Thursday, July 10, 2008

Foundation Layout

Using the survey points set last week the foundations for the model units have been outlined in chalk to begin excavation. This is a rough estimate of where to excavate. Once excavated the survey points are referred to again to construct the formwork.

Thursday, July 3, 2008

Survey Reference Points

Gentry Surveying laid out the reference points for the foundations today. They staked points offset from each corner of the first eight units. The stakes verify that the graders did a great job. The finish elevation only flucuates by .10" over 150'.

Tuesday, July 1, 2008

Grading Complete

We finished grading today. Grading this lot was a joy since the lot was already so flat (only 18" rise over 255'). L.A. city's about face on site drainage made it easier as well. The city used to require all site runoff to drain into storm-drains to the ocean. Now they require all runoff to be kept on site and only filtered overflow makes it to the street. This means we can grade the site flatter with a drainage pit in the center of the driveway and not have to slope the entire site up from the street.