Thursday, October 27, 2011

Deck Bracing


When we designed our house with big decks ten feet above the ground I did not consider all of the things that would be necessary to make it happen. The deck is supported by 6 x 6 inch "legs" and on top of those is a frame made from pressure treated 4 x 12s into which the joists are nailed. All of this structure supports the decking boards. Each leg is placed on top of a 3' x 3' x 18" deep poured concrete footing. The thing I didn't consider is the bracing that would be required.



I decided that if it were done right, the angle braces need not look too ugly, and it gave me a little woodworking project to do while the siding and roofing were being installed by their crews. I had argued with the framing subcontractor that it really should have been his job and that I thought it was included in the bid, but I  knew that if I wanted it to look good I had better take the job on myself. So I put together a little workshop in the garage and set about designing, fabricating, and installing the 24 pieces of bracing. Calculating the length of the braces required that I trot out the Pythagorean theorem, something I had not thought about in a long long time. The bottom of the braces had to be bolted in 1/3 of the way down the post, as measured from the top of the post. I rounded off the corners of the 4 x 4s to match the look of the 6 x 6 posts, notched the top and bottom to fit around the deck beam and the post, and drilled them with a drill press in an attempt to get a straight hole. Creating the first brace took several hours but after I had done a few I got it down to about an hour each. 

Our set of plans that were drawn up by the engineer specified "Bracing as required". I asked the engineer what that meant and he said there were several ways of doing it and our framers would know what to do. After our house framing was complete I asked the framing subcontractor about the bracing and he said it was not included in the framing bid. He claimed that we had talked about it early on but that had not been the case as I was still under the assumption that bracing was a part of the line item that said "Deck framing complete". He said that he never includes deck bracing in his bids because homeowners often require very labor-intensive treatments of the bracing since it is always very visible.

I called the county building department lead engineer and asked him what bracing would be required by the building code and he said that we had three options:

  • X-bracing on each side of the deck - that would be a large X-shaped brace made of 2 x 6s bolted into place between the posts of the three sides of the deck. These structures would be big and ugly and I could not really figure out a good way to hide them so I decided against X-bracing.
  • Hire an engineer to design some kind of custom bracing that employed a combination of lateral braces under the deck framing and blocking nailed between the framing members. This option sounded expensive and complicated and in the end could prove to also be unsightly.
  • 4 x 4 angle braces 1/3 third the length  of the post on two sides of each post. there were 12 posts supporting the deck so that meant 24 pieces of bracing that had to be fabricated and through-bolted in place with 5/8" bolts. That all seemed like overkill and a really big job but maybe the best of the three options. 

Installing them meant drilling through the 6 x 6 posts and the bottom of the post and through the 4 x 12 beam under the deck. I found it hilarious that the building department would not allow the electrician to drill a 1/4" hole in an engineered beam, claiming that it might weaken it too much but here I was required to drill all of these 3/4" holes through engineered beams by the same building department. Since I wanted to bolt them on the inside of the posts, I also had to notch out the ledger that supported the joists in most cases. The whole job took about a week but when it was done I liked the look. The county inspector liked them too and they passed his inspection with no modification.   




This view shows deck supports with bracing installed.


Now on to the task of putting on the deck boards and the railings, sizable jobs on a deck this big (854 square feet).

Tuesday, October 25, 2011

The View from on High

One of the best things about being a contractor is getting to play with really cool toys! Since the roofs on the house are so high I had been not only unable to do any work way up there but had not been able to even see the work up close that had been completed. So when the solar guys said that they needed to rent a 45' lift for getting their panels onto the roof I thought this might be the perfect opportunity to finally get to see things topside and touch up any issues. The siding had been pre-painted but there were still minor things to repair and there was caulking to do.


The machine showed up on a Wednesday and the solar guys needed it only for Thursday. That meant that if I would pay for Friday I could have it for the entire weekend. The rental company dropped the lift off up in the restaurant parking lot and it was only when I went there to eat lunch that I spotted it in their parking lot.  I saw that the key was in the ignition but I had not a clue how to even start the thing, let alone drive it or raise it up. It probably took an hour to figure it all out, get it down the house, and raise it up to the top of the roof. After that, I was an expert and I laid out a plan for getting the most out of it while I had it. 

I started on the front exposure, which is only about 25 feet high, where I finally got to see and repair the scratches and scuffs the siding people had made with their ladders. 


On the other side of the house the height of the roof is closer to 38 feet, which is definitely not a height I like to work from on a ladder, so I was glad to have the machine. On each of the three days I used it to caulk and touch-up until it was nearly dark out, but still, by the time I had to drive it back up to be picked up I was sorry to let it go. After I win the lottery I can get one and park it next to my Ferrari!

Thursday, September 1, 2011

Finishing the Exterior

This is a big topic, one that deserves more than a single posting; but for now this will have to do. The siding and roofing have now been completed, gutters are installed, and we have passed our framing and mechanical rough in inspections. Siding installation took weeks longer than expected because the crew showed up only occasionally, but overall they did a great job. After talking to the Hardiplank siding sales rep, we ordered pre-painted siding expecting that if the crew was careful we could avoid having to paint the exterior of the house. Because some of the walls are35 feet high this is a big deal. We were not disappointed, and aside from some scuffing here and there that will have to be touched up, the paint looks great.

Weeks earlier I had allowed the plumbers to penetrate the roof with their vents expecting that the metal roof would be installed in short order. But since the siding guys had to not only get on the roof to do their thing, but actually had to tie into the roof with their scaffolding, roof installation could not begin until they were out of there. This meant that every time we got rain, water poured through the roof and puddled on the sub-floor. This made Flora very nervous and although she was continually placing buckets under the leaks, workers kept stealing the buckets and thwarting her efforts. Nobody was happier when the roof was finally watertight.

Another problem that resulted from jobs being done in the wrong sequence (my bad) was doing the finish grading before the gutters were on the house. Each time it rained the waterfalls of water pouring off the 35 foot roofs eroded the dirt below and washed it away. Gutters were installed today so now I can repair the back-filled areas that were damaged.

Next will be installation of insulation, then drywall. Tomorrow the cabinet people come to do the kitchen cabinet layout and the next day we will go to see more slabs of granite before we order our counter tops. We still have a lot to do, but things are moving quickly and we still hope to have the house complete by the end of the year.  

Sunday, July 17, 2011

Back-filling the Trench


The residential building code requires an overdig of at least two feet around the outside of a basement wall to allow access for waterproofing and laying a foundation drain. Since I figured that too much access to the foundation was better than too little I chose to make the ditch around the basement walls about twice that wide. The implications were that while it would be easy to get in there and do what had to be done, it would also mean having to fill about twice as much material.


The foundation drain was placed before the walls were set in place and waterproofing had been completed on one of our typical 95 degree summer days. While I don't generally allow drinking of the jobsite, since no power tools were being used, I allowed an exception this time. So during the hottest part of the day we swilled ice cold beer and slapped on the tar with rollers.


















We could not backfill until the first-floor decking was built and attached. The top of the superior walls is bolted to this floor deck every four feet with large bolts and these bolts and the weight of the floor combine to strengthen the walls against the pressure of the soil as it is piled up against the outside of the walls. I chose to wait even longer until all of the framing was done but now was the time. I wanted to get on to our final grading and build our front steps that lead up to the deck and this required that the backfilling task be completed first.

I called multiple excavation companies and they all had waiting lists as long as a month, so because of my impatient nature I decided to take on the task myself instead of waiting.

Two large piles of dirt had been left when the basement was excavated to be used for backfill so it was a matter of moving about 80 cubic yards of the stuff one bucket at a time and dropping it into the hole. I had estimated that it would be a 4 hour task but in reality it required about twice that long.



















My machine is old and it smokes and groans but ultimately Slowly the piles of soil were depleted and the trench was filled.

Sunday, July 10, 2011

Framing (part 2)

The total framing job took less than four weeks and every day there were new changes to see. Really though, it was seeing the roof lines go up that was the most exciting of all. The roof in our great-room soars 27 feet above the floor and big beams are required to support those 24' long rafters. The ridge beam spans the top of the room and the rafters are nailed into it. This beam is 5 1/2" wide and 18" high and it is composed of three big LVLs that are nailed side-by-side. One end of this beam is held in place by the other roof but the front is supported by a post (see this connection in picture at right) that rests on the foundation 37 feet below. The ridge beam and the post are bolted together and several other large beams attach to them to support the roof load. There is also a 3 1/2" x 24" horizontal beam that attaches that is meant to stiffen the entire front wall to meet the 90 mph wind load requirement. This beam will provide a "plate shelf" that spans the entire front of the house.

The framers spent much of a day building a large scaffold and I was there early the next morning to watch and take pictures as the 6-man crew lifted the huge pieces into place. I guess I expected something dramatic but like the rest of the house, the roof took shape one piece at a time. Two rafters had been nailed in place the previous day for placement of the back end of the ridge beam and a post was put in place to hold the front end.  The crew lifted the 3 pieces that would make up the ridge beam into place first, assembled them together, and then began lifting and nailing in the rafters. Within a couple hours they had several of the members in  place and by the end of the day most of the rafters were nailed in. The next day the rest of the rafters were installed (pic at left shows the roof with a few rafters missing) and framing began on the big south-facing "wall of windows". After that, sheathing was added to the walls and roof and they were each covered by membranes in preparation for roofing and siding.


Indeed the frame is what makes the house what it is. After framing is done, windows and doors are added and then plumbers, electricians, and HVAC installers come in and chop holes in it all. Then the insulation crew caulks the holes and stuffs every nook and cranny with insulation so that the drywall guys can cover it all up in preparation for paint. The framing crew was there for a week and I really got used to their laughter and hammering. Things now are much quieter.

Thursday, June 23, 2011

Framing (part 1)

This is the stage of building where the house finally begins to look like a house. Prior to this you don't really have much but a pile of concrete but then a framing crew begins to turn a big stack of lumber into walls, floors, and roofs and the shape of the house begins to appear. Naturally, in our house we had to finish the basement level first. Concrete walls were in place for all the places where soil would be back-filled against them but on the open parts of this level the walls would be built from wood. Multiple lumber deliveries were necessary before framing could begin.

Anchor bolts had been embedded in the edges of the concrete and the tops of the pre-poured walls had holes in them that would allow the first floor framing to be bolted to them. In concept framing seems simple enough but in reality it requires a lot of planning and calculations to make sure that each of the substructures that is built fits together with this rest of the structure when they are mated together. The door and window openings have to be the right size to fit doors and windows that will be coming later and must be located in exactly the right location with the wall. Many of the dimensions are not specified on the house drawings (for example, rafter lengths) so each of these must be calculated to ensure that every stick of lumber is right.  The framing crew has a lead framer who is responsible for this and for keeping each of the crew members busy and usually each of them is working on a different part of the structure so it is a lot to manage.





Our lead framer was named Ramon. The photo at the right show Ramon leveling a wall. He was very good at explaining the options each time I had another decision to make (and there were many of these every day). Things like the location of the kitchen window, which depended upon the kitchen layout (which was yet to be determined) needed to be established before the wall that holds that window could be built. The kitchen design was, in our opinion, the one weak link within our overall house design, which is to say, the way it appeared on the drawings was not going to totally meet our needs. We identified this deficiency early on and even tried to hire a kitchen designer to help us with the details, but by the time framing started we still did not have a revised kitchen plan.



The single window the was in the kitchen needed to be located above the main sink but we did not yet know exactly where the sink needed to be because we had not yet figured out the right location for the stove or cooktop (whichever we decided to install). I preferred to install a cooktop on an island opposite the sink, but the kitchen (as shown on the plans) was too narrow for an island. The kitchen was essentially U-shaped with one side against a wall and the other defined by a post that held up the second floor loft. Kitchen walkways should be a minimum of 36" wide and with one on each side of the island, we would have only 12" left for the island. With all these problems I hired a kitchen designer. I sent her a set of plans and a week later she came out and laid out a schedule, a set of deliverables, and a price that we quickly agreed to. To make a long story short, she left and never returned and we lost several weeks and still had no kitchen plan.

At that point I decided that I would have to take the kitchen design on myself and with the help of some Web sites I was able to move the side peninsula over and draw up a plan that I think we can live with. Once that was done we established the location of the kitchen window and provided it to the framers who by then were well on their way to completing the basement framing. The basement has 10 foot high ceilings and those walls, when completed, looked very tall. The floor deck above that was framed with 2x12s, which added another foot of height, so the floor of the main living space then is 11 feet above the basement floor, making it s long climb up those stairs. A floor framing inspection was performed, the floor was sheathed, and then the first floor walls were built. The photo above shows some of the first floor framing, including the 14 foot side walls that will support the front roof.

We were happy to have the first floor walls in place so that we could finally see the outline of our rooms in full scale rather than just on paper.

Thursday, June 16, 2011

Finally some mud is poured

The most aggravating thing about being a contractor is trying to find reliable people. I guess that in that regard it is like running any other business, but somehow I expected it to be better than hiring individuals. When I ran my plant nursery in Florida I always had a tough time finding and keeping help but I was paying only barely over minimum wage and finding reliable and trainable people who want to work for low wages is never easy. In this case, supposedly the subcontractors I am hiring are business people who are running their businesses to make money and as such I would expect that most or many or at least some of them would return phone calls, show up when they promise, and do the job they are being paid to do. That doesn't sound like too much to ask does it?

My basement walls were installed in April (see a previous blog entry about that experience). A few weeks prior to that I had found a framing contractor who had built a house for a neighbor and had done what appeared to be a great job.  The neighbor could not say enough good things about the guy, so I called him and arranged a meeting. We got together and talked about my job and he left with a set of  my plans promising to call me with a framing bid by the end of the week. The week went by, then the weekend, and sometime in the middle of the next week I called him back and he told me he had not had time, had lots of jobs going, would get it done soon, blah, blah, blah. This was to become a common song and dance. A week or so later I called him again and got a similar story. After a third call I decided to look elsewhere for a framer; he never did get me that bid and as far as I know, he still has my set of plans.

While I was looking at the neighbor's house I also noticed what a nice job someone had done forming and finishing his concrete sidewalks, so I got the subcontractor's name and number. The same guy had been recommended to me by another general contractor so I thought this might be a good place to start. I called him and he said he was very busy but would fit my little job (about a 25 yard pouring my basement slab) into his schedule with no problem, just give him a call a week  or so before I was ready. I emailed him a set of plans and called him as he had requested when I was about ready. He finally got back to me about a week later and said he could come out to my job site in about a week. By then my basement walls were done and I was anxious to get on with the show. I had to call him a couple more times and he finally agreed to a meeting and he actually showed up. We walked around with a set of plans for about an hour and discussed how to attack the job; this was on a Thursday and he said that he could form and pour it the next week. The next week came and went and he again failed to return my calls. By then it was the end of yet another week with no progress and I was getting frustrated. While I was playing telephone tag with this guy I got a couple more leads and got three more bids from other concrete subs. Two were within a couple of hundred dollars of each other and the other one was about $2000 more for some reason. I decided to go with the guy who was based out of Chapel Hill; the other guy was from Raleigh, which is about 35 miles away.




It was a good weekend; I was finally going to get the job done, a month late but done nonetheless. His price was for labor only so I picked up two 48" x 100' rolls of 6" wire mesh, #4 rebar, 6 mil poly, and anchor bolts. He would bring the tie wire and the chairs that hold the rebar up off the ground, order the concrete (and get me his discounted price), and most importantly, his crew. His crew came out and leveled the stone that was in place, measured and formed the slab, put down the poly, mesh, and rebar and got ready for the next day's pour. It turned out that when the Superior walls crew had run their plate vibrator over the 1/4' stone base that those walls were to rest on, they had reduced the base height by nearly an inch. That meant that the 3/4" stone base that was to be under the slab was also an inch too high and all of that material had to be removed to maintain the correct final surface height. It was so hot that day that I allowed the contractor to use my skid steer to do the job and he completed it in about a half hour.

So when his guys rolled in to do the pour on May 31st it became clear that after a six week break, we were finally back in action. The whole job went smoothly. Temperatures were in the mid 90s and it was miserable out but the concrete finishers did a good job for the most part and now we can move on with framing, the part of this job that will make this concrete-lined hole in the ground into something with more resemblance to a house.