Whew. That was hard. I’m now officially “under roof”. I knew the roof would be a multi-part series, but it was more long and drawn out than I thought.
I am now far behind my goal for finishing the home in 2-3 years. In fact, I thought back in October that I might be able to finish the roof by the end of 2018. We are now halfway through 2019.
On the bright side, I’m still within budget, and now that the roof is done, I can take a breather and finish projects I left hanging like installing a motor in my pickup. Also, much of the remaining work can be done on the ground – no more dragging construction materials up to the roof. How much did I drag up there? I won’t bore you with the details, but I estimate about 35,000 lbs, not including tar paper, nails, screws and insulation. Along with the ~22,000 pounds of rafters, and the 10,000 pound ridge pole, this puts the weight of the roof around 67,000 pounds.
The shingle elevator saved my back and knees. I put 109 bundles of shingles on the roof. Each bundle weighs about 60 pounds. With the shingle elevator, I was able to load three or four bundles at a time, hook the rope to the car and back up, and then climb the ladder and off-load them onto the roof.
Also, since my roof is not exactly square, I had some issues keeping my shingle lines straight when I got to the ridge. But I noticed when watching some how-to videos that the professionals have issues with non-square roofs as well, so I feel pretty good about my not-perfect roof.
We still need to clean up the inside of the house- I’ve got scraps of foam in there, extra lumber, plywood and a lot of junk leftover from installing the roof. I noticed during a rain storm that the ground on the West side of the house is a bit higher right along the drip line than the ground is inside the house. The rain was running down to the inside of the house. I think I’ll ask the neighbor to bring his disc-harrow over and plow up that side, and then I’ll shovel the dirt to the inside of the house. That way, the inside will be just a bit higher than the outside, forcing the water to run the other direction.
I think the very next step is to trench the sewer, water, and maybe electrical. It’ll certainly be no fun to trench if I wait until after I get the subfloor in. And then I need the floor joists and the hangers, the insulation, etc., etc.
A guy I met in a sawmill group on facebook offered to make my second floor beams for really cheap. He’s in Georgia and said he’ll deliver them. I’m not ready for them, but the price is so good I can’t pass it up. I’d make them myself, but I’m currently out of trees.
Other things that need to be done in no particular order:
frame in the gables
install 1st floor
install 2nd floor
doors / windows
Sigh. The really cool part – cutting down trees, making pulleys, stacking the walls, installing the ridge pole, decking the roof- is over. From here on out, it’s almost all just normal 2×4 construction- framing, cabinets, hardwood floors, tile, plumbing, etc.
The shingle elevator was made out of wood, and it broke after the week of rain weakened it. So I welded a new one. It works better, but I’m worried about the rails it rides, which are 22 foot long 2×10’s.
I’ve made a lot of progress on the roof- the frame is complete, the insulation is completely installed on both sides. I had to stop and measure how much insulation I had left- and use the hot wire foam cutter to cut the 9″ thick pieces down to size – they were too thick to fit in the boxes. Also, I had plenty of 5″ thick pieces, but not enough 7.5″ pieces. I found that 7.5″ is the sweet spot- the foam has a stated R-value of 4.6 per inch, so a 7.5 inch thick layer gets me R34.5, where only R30 is required. This doesn’t count the value of the 2″ thick decking, or the plywood, or the underlayment, which doesn’t add much, but does add some. To make the 7.5″ thick foam, I set the wire at 7.5″ above the cutting deck, then stacked two 5.5″ pieces on top of each other and fed them through the foam cutter to make a 7.5″ stack. I have enough foam left over for a very well insulated chicken coop.
Some folks have spent thousands on their insulation- even when buying used. I was able to get away with $400 for all the foam I could stuff into a huge U-haul van and my trailer pulled behind. Extremely cheap!
2x lumber isn’t what it says it is….
I wish I had thought more about the fact that a 2×10 and 2×8 were really 1 1/2×9 1/4 and 1 1/2×7 1/4, because that threw off some of my measurements. See, the ribs are 2×10’s, spaced 48″ OC apart. But the plywood is only rated to span 24″, so I needed a support between the 2×10’s. I didn’t want to just space the 2×10 ribs at 24″ because that messes up my 48″ foam, and a 2×4 is a lot cheaper than a 2×10 no matter how you slice it. Besides, a solid piece of foam is a better insulator than a skinny 24″ strip of foam- that’s just simple physics.
Anyway, I planned to just put an 8′ long 2×4 between the 2×10 ribs, on top of the 2×8’s as a support, because the height of a 2×8 cross member + a 2×4 = height of a 2×10, right? wrong. There’s a 2″ vertical gap between the 2×8 & the 2×10, but the 8′ 2×4 laying on top of the 2×8 cross member is only 1 1/2″ thick, so there was a 1/2″ gap I had to fill between the top of the crossmember and the top of the 2×10 rib. I admit I actually couldn’t figure out at first why my plywood was sagging in the middle between the ribs. Oops.
Getting everything on the roof
Yes, this continues to be a problem. There are multiple solutions, but the main thing to remember is to keep the main thing (building the roof) the main thing. It’s easy to dream about a jib crane or some contraption with a winch motor that lifts everything up on the roof at the push of a button, but at the end of the day, the question isn’t “how did you do it?” as much as it’s “Did you do it?”. Sigh…..Up and down the ladder.
I figured out that I can lift four sheets of foam at a time with just a rope. So that helps. But the plywood is dangerously unwieldy, so I could only manage 5 sheets at a time using the elevator, or in the photo above, one at a time. In this case, it saved me carrying it from the elevator, up over the peak, and then down to be installed. You do what you have to do to get it done.
And the 2x lumber- well, I can lift about 30 of those at a time with the elevator, so that’s nice.
Nevertheless, I do have backup plans for a jib crane to lift shingles in case the shingle elevator goes kaput.
I added a 1/2″ x 1″ spacer to the 2×8 to lift the 2×4 up to the correct height. And on the boxes I hadn’t finished, I went ahead and lifted the 2×8 so that when I added the 2×4, it would be level with the 2×10. If I ever do this again…..
Using my Magnesium oil almost daily to stop the aches and pains of going up and down the ladder. It’s amazing stuff- helps the muscles heal, and protects joints.
I’ve used the car to run the elevator- just tie a rope to the front of the car, the other end goes to the pulley attached to the lift. Then back up, and everything goes up. Once it’s at the top of the lift, I climb the ladder and unload the supplies onto the roof. I carried almost every 4×8 sheet from the West side of the roof, up over the peak of the roof, and then down onto the East side of the roof. That was no fun, especially when it was a bit breezy.
I’m not sure how lifting shingles will end up- they are pretty heavy – about 60 lbs for each bundle. There are 99 of them…
I cut these in the roof to enable cool air from the ground to flow up the side of the house, into the roof, and out the peak. I made a template out of a scrap of T&G decking, then cut rectangular holes and covered them with heavy duty screen door mesh plus 1/4″ wire mesh. Here’s a video describing the theory of ventilation.
…And a change in roof design
When looking at the roof from the ground, you don’t see the built-up part of the roof, at least from the front of the home. This makes the roof look thin and wimpy.
As an aside, I’ve several folks pull up and ask about the house, and if they ask about the roof and the T&G decking, they always assume I used 1×6 planks. They are always surprised when I show them a scrap and they find it’s actually 2×6 planks. I get about one visitor a week that actually pulls up and wants to ask questions, while I get a half dozen gawkers who stop in the road to take a look or a photo. I’m always happy to answer questions- to me, the LHBA method is the best method for getting a really cheap house that has tons of value.
The last one that pulled up really made me think about this- yes it’s vain to build up the whole roof just for looks. On the other hand, the whole thing is probably vain, if you want to take a minimalist view- I mean, I could have just plopped a mobile home on the property and said, “done”, right? But let’s stay focused here- I started looking at the roof, and decided they were right. I asked my wife about it, and she immediately said, “I’ve always wanted the whole roof to be thick.” She knew the whole time, but just didn’t want to make an issue out of it. Yes, I can usually finish the maze a few seconds behind the rats….
“It’ll be a lot more work,” I said.
“And a bit more expensive – like $500 more.”
She doesn’t want to pull up and look at the wimpy roof and hate it every time she comes home. I agree.
It also simplifies the drip edge and other issues I was having with making nice clean looking roof lines.
So….I ordered more lumber, plywood, tar paper, etc. Don’t need any more shingles, luckily.
When I added the extra 2×10’s to the roof, I found that the roof decking isn’t exactly flat. Big surprise? No, not surprised. I’m actually surprised that the gap was 2″ or less. Probably due to my 5×12 rafters not being perfect or something. Anyway, to stop the critters from getting in there and make it look purdy, my wife gave me an idea – “why not put a piece of angled metal up there and screw the 2×10 to it, and then screw it to the deck?” It was a great idea, in fact:
That’s all for now…Next up: I’ll finish shingling the roof.
This style of roof is also known as a cathedral roof or ceiling. But the simplest answer is a built up roof is a roof where the insulation is on top of what you see from the inside – different from a roof where the insulation is inside and below the roof. A log home can be built with a conventional roof, but nobody wants to walk into a log home and look up to a white dry wall ceiling. Besides, according to a lot of folks who’ve done both styles- the built up roof is only a little more expensive, and it can be argued that it’s even less expensive if you are doing your own labor, if you consider the amount of work to install bats on the inside of the home rather than the top of the roof.
Materials for this roof
The roof of my butt & pass log home starts with three RPSL’s (Ridge Pole Support Logs), which sit on three 18″x36″ piers that have a six foot square base, buried three feet in the ground. I estimate these piers to be able to support 50,000 lbs each, although the roof will probably only weigh about 70,000 lbs total.
The RPSL’s support a 56′ x 30″ sweet gum Ridge Pole, 30′ in the air.
5″x12″x27.5′ rafters spaced 4 feet apart rest on the walls and the Ridge Pole, spiked with rebar at their attachment points.
2″x6″ tongue and groove (T&G) decking are nailed to the rafters, with 8′ of overhang past the walls of the home at the gable ends, and 4′ of overhang on the eaves.
A synthetic underlayment goes over the top of the decking.
2″x10″ sleepers form a box frame around the solid foam insulation, but only on the insulated portion of the home. They are spaced every 4′. Outside of the home, on the overhang areas, shingles are applied to the underlayment, along with a drip edge and soffits.
On top of the insulation is plywood decking, tar paper, and then shingles.
Eventually, we’ll do a metal roof, but I really like the idea that for now my roof will be protected by plywood and shingles, where, if we just did metal, we could forget the plywood, and just screw the metal directly through the foam and into the rafters and decking. That extra umph from the plywood and shingles gives me some peace of mind.
When you buy used….
I’ve scoured craigslist for insulation for almost a year, and finally got a hit from a guy removing insulation from a senior retirement complex and selling it for $6 for a full sheet. I rented a U-Haul, attached my trailer, and stuffed that thing to the gills with as much foam as I could get in there – which was only $400 worth of foam. I hired my step-son Arthur to help on his day off, and it was a smart move- he worked hard and we had no problems on the road.
With all that, I think I have enough. Alabama requires roof insulation to be R30 or better. The manufacturer of the foam I bought claims R-value of 4.6 / inch. So, an 8″ thick sheet would have an R-value of 8 x 4.6 = R36.8. I wanted to get to R50, but would need bigger sleepers, a ton more foam, and it just wasn’t worth it. Besides, my wife doesn’t like the roof any thicker than it has to be, so 8″ thick it is.
At first, I was worried about the foam because it slopes by about 0.75″ – 1″, due to the way the previous roofer installed it on the retirement home, so I set up my foam cutter to slice the foam flat. Here’s a video of that.
Later, I decided that since I only need to meet or beat R-30, having all the pieces perfectly flat isn’t all that important, as long as I get to 8″, I’ll be fine. More important is that the foam is four feet wide, and the sleepers are spaced four feet apart on center. This means I had to cut 1.5″ off the foam to make it fit in between the sleepers. Some folks used a saw, but that is messy. I wanted something better, so I turned the foam cutter on its side and used it to slice off 1.5″. I used a borrowed Rheostat transformer from my buddy, Ellery. Here it is in action again.
I also got the lumber, used, from a local guy….who said he was going to use it to build a cabin, but had too many other projects on his plate. We talked for a good hour at his house- he informed me that I could get a residential builders license just by taking a test and paying a fee. I’ve always thought to become a General Contractor, you had to work for a General Contractor for two years, but they are not the same thing. So now, I’m thinking about this idea……
Trimming the edge
I put the decking on the roof, knowing that I was going to come back later and trim up the ends of it. Turned out to be very scary and took a lot of motivation to get up there and cut it. I originally thought that I would have to “square the roof” to make it look right, but my buddy Ronnie said, “any thought of making the roof square should’ve gone out the window when you started building with logs.” I think he’s right- my logs are crooked, the Ridge Pole has a slight bow in it, the RPSL’s are no better, the cap logs are off, the rafters are homemade- nothing lines up, so….If I go off and have this perfectly square roof sitting up there, it’ll look cock-eyed from the ground when compared to the rest of the house. What I ended up doing was following Ronnie’s advice: just snap a chalk line about 2.5′ from the last rafter (the one that sticks out the farthest), and run a skilsaw up the edge.
As a one man show with no man-lift, I made a tool out of rebar that I could slip over the end of the decking to “feel” where the rafter was, and then use that as a reference to snap the chalk line.
Here’s a video of me with the tool I made to help line up my cuts.
Cutting with the skill saw on the edge of the roof, and knowing that the saw could jump out of my hand at any moment, thirty feet in the air- it was all quite unnerving. I tied on, and also used one hand to hold the rope while I ran the saw with the other hand. I think it turned out great, and I’m the only one who can see the little wobbles here and there (they are not that bad, I’m just saying I know there are some ;).
I build a shingle elevator to get everything up on the roof. I need to get the 2×10’s up there, set them at 4′ apart, then screw them to the roof. I need to frame all around them and inside so I have a place to screw the plywood to that will sit atop the foam insulation. But I need quite a few days of dry weather to make sure the foam doesn’t get wet.
A few weeks ago, we took a major step forward- we are done with the walls, and we got the Ridge Pole and rafters installed. I’ve spent that past 2 weeks- in between weather events and life- getting the rafters level.
Again, if we were building with 2×4’s, it’d be easy. Building with crooked logs involves a lot of finesse and finagling to get things to look right. There is nowhere to ‘zero’ my measurements, so I have to do relative measurements. For example, the cap logs are actual logs, so they vary and wave as they go along the house, which means the rafters will do the same. The rafters, as I’ve mentioned, vary as well- but they at least have one flat side.
If I don’t ‘square things up’, I’ll end up with a crooked roof. That’s what is eating up my time. And leveling and squaring the rafters is done in 3 parts: setting them at 4′ on center, then leveling at the Ridge Pole, then leveling at the cap logs.
Setting at 48″ on center
When the crane guy was on site, we were paying him a bunch of money per hour, so we decided to just get the rafters close to where we wanted. Later, I went back with a tape and measured 48 inches from front to back, and placed the rafters on this mark. Then I did the same at the cap logs. When matching up the cap log placement of the rafters with the Ridge Pole placement, I found that eyeballing it was better than trying to drop a plumb line and squaring it up that way.
leveling at Ridge Pole
This was more complicated than I thought it would be. There are quite a few variables- roof pitch, Ridge Pole taper, ridge pole bow, rafter size, bolt hole placement, and not to mention working 30’+ up in the air. Dropping tools from that height is a pain. I ended up rigging up a pulley system and buckets and strings tied to the tools and then secured to the rafters. Yes, I wore my fall harness, which was a pain, but would have been more painful to fall.
The goal here was to get them level vertically as well as horizontally. Since the RP is so wide and has a slight bow towards the East, some grooves had to be made in the RP to drop the rafter pairs down to the correct height, and at the same time move it left or right to line up with the other rafter pairs. Cutting a groove to move the rafter left or right also drops it at the same time. I measured several of them carefully, taking note of the exact placement and diameter of the RP at that point. I used graph paper to virtually drop a few of them a few inches to see what the effect would be before I cut. Once I was comfortable with my graph, I started in on the actual rafters. I used an electric chainsaw (much lighter and easier to maneuver at 30 feet up), and then smoothed the cut with an angle grinder and a rotoclip disc.
They are now all within 1/2″ of level and center.
Leveling at Cap logs
I first took a string and a string level and nailed it to the rafters on each end. Then I measured the difference between the height of the string and where it touched the rafters and recorded it in a notebook. The rafter that is furthest away from the string is the lowest, so the next step is to make all the other ones match. Unless they vary by a lot. In my case, the East side of the house varied by 8 inches across the rafters- because it kind of sags in the middle. We knew the m when we put the cap log up, but we didn’t know it was 8 freaking inches. All four corners of the house are within an inch, but it’s the ends and the middle that matters, and that’s where the difference was. There was no way I could cut 8 inches out of a 13 inch cap log- that would weaken it beyond use.
To overcome this gap, I jacked up the most offending rafters and installed two 4″x5″x14′ beams that I made on the sawmill and pinned them with rebar. This won’t be seen when the roof is on unless you know where to look because there are other boards called bird blocks that go exactly on top of the beams.
On the west side, I overcame the issue much easier with a 2×4. The rafters rest on these “jacks”, but they are still pinned with rebar through the jacks and into the cap logs.
They are now all level to within 1/2″ of each other.
Before we can install the decking on the roof, we need to install our girder log. This log acts as a ‘collar-tie’ for those in the industry. For non-industry types, the girder log keeps the walls from spreading when the 80,000 lb roof is installed. The girder also holds up the second floor. It can be installed at anytime, once the wall logs reach over the second floor. Those using telehandlers usually install it right when the wall logs reach second floor height. When using ropes and pulleys, it’s easier to wait until the wall logs are done so you have somewhere to hang the pulleys.
Another small milestone. Just two more logs so far, but wow, it was not easy.
RPSL’s are Ridge Pole Support Logs- their job is to hold up the Ridge Pole (RP)- the largest, longest, straightest, heaviest log in the entire build. They are very important logs, and must have no defects and be very straight. I estimate the Ridge Pole I’m going to use to be about 5 tons (for comparison, the heaviest wall log was around 3 tons). Vertical compression strength for a 12″ log averages around 650,000 lbs (about 325 tons), whereas the horizontal strength of a 12″ log averages around 20,000 lbs (about 10 tons) over a certain span. Sorry for all the math, but what this means is you can have very skinny looking RPSL’s, and they will still be strong enough for any RP.
For a 40×40, the three RPSL’s are installed on three specially sized piers- 2 RPSL’s at the walls, and one in the middle. Before I poured the concrete, the inspector came out and he didn’t like the pier size specified in the plans. He wanted them one foot deeper in the ground (meaning one foot taller). He also wanted the RPSL to stand completely on the pier with no overhang. I did one better- I made them 5.5′ square on the base, and 5.5′ tall, and almost 20″ of support for the RPSL. They are about 2 feet in the ground. I estimate the roof at about 80,000 lbs. The piers on the plans should hold about 50,000 lbs each. I estimate my beefy upgraded piers at about 70,000 lbs each.
We looked at all the logs we had left and didn’t like what we saw. Julie wanted me to cut some new logs for RPSL’s. She found a reasonably straight tree, but when I cut it down, it had an awful (awful for an RPSL, but really good for a wall log) bend in it. After looking at it over and over, we decided to use it anyway. I found another tree for the second RPSL and cut it down as well. We will put the third RPSL up after the RP is installed. I was able to cut each RPSL and peel it in one night.
It went well, except when I tried to turn one of them with my ‘can’ hook- stupid thing was so slippery from being freshly peeled that it slipped when I was turning it- it sprung back to its resting position, catching the arm of my can hook, and slammed it into my collar bone, instantly dropping me to the ground. I laid there in a daze for a few minutes before I was able to move. When I thought I could move, I felt my collarbone, thinking I broke it, but it didn’t appear to be broken. But the pain was so intense, I was light headed and thought I might lose my cookies. Luckily, I recovered enough to drive home, and was back to work the next day- but with an awful looking bruise.
Installing the RPSL’s on a 40×40 is interesting- since we are building a two-story home, the top of the wall is 20′, and our roof pitch makes the final height of the RPSL about 30′. You can easily slide a 30′ RPSL under the house, and then stand it up on the inside. I hung a pulley from the wall at 20′, and proceeded to lift the RPSL into place. But the darn thing was top-heavy somehow, and I found I needed two additional pulleys to stop it from spinning like a propeller.
Another thing was the rebar coming up out of the pier that attaches to the RPSL was in the wrong place. It was a guessing game from the beginning: The 3 oversized piers have double duty- the two on the perimeter hold up the wall logs and also hold the RPSL’s. The one in the middle holds an RPSL and a girder support log (for the second floor support). Unless you use logs that are uniform in size (like telephone poles I guess), there’s no way you can know ahead of time where the center of the RPSL will be, and so you can’t know where to place the rebar into the pier when you pour the concrete.
The solution was:
Cut the rebar off from the pier
set the RPSL in place temporarily onto the pier
measure where the RPSL will sit (you want it exactly perpendicular to the wall, plumb, and as close to the wall logs as you can get
lifting the RPSL back up off the pier
drilling a hole in the pier with a hammer drill
squeeze the structural epoxy into the hole
put a stick of rebar in the hole so that 12″ sticks out the top, wait 5 minutes for it to set up
drill a hole in the bottom center of the RPSL where you marked it in step 3
re-install RPSL onto the rebar
re-check that RPSL is centered and plumb and lines up with the other RPSL
check again just to be sure
bolt RPSL to wall on every other wall log
Since our wall logs are so tapered and crooked, the RPSL doesn’t butt up against the wall next to every log. So instead of settling for the ugly look of all-thread between the RPSL and the wall logs, another nice idea from the LHBA forum was to install black pipe in between the gaps, giving it a nice uniform look. It was not easy, but it was worth it. I may counter sink the nuts and washers and put nice plugs over the holes, but I can do that any time.
Drilling a 5/8″ hole through a 24″ log, and then onto another 20″ log presents another challenge- I needed a longer bit- like 48″ long at the minimum. I went to the orange box people – $75 for one of those! wow! I went down the regular drill bit aisle and found a short one for $12. Then I went over to the neighbor’s and welded a 4′ stick of rebar to the drill bit. I ground down the chuck end so it would fit in my 1/2″ drill. It worked very well- just had to back it out of the hole 20 times (flutes were too short to get the shavings all the way out). No matter, it wasn’t too bad, and went pretty quick- after I got my scaffolding in place.
Yeah- scaffolding. Even though I don’t have temporary flooring in place and moving the scaffolding right now is a pain, the ladder is just dangerous for trying to drill horizontal holes – it’s usually too far away, or too close because of the angle of the ladder. The 13 amp drill I use can break your wrist if you don’t hold it right. Scaffolding will be invaluable when we get to chinking and a thousand other tasks coming up. And I got the scaffolding from California for about $600, including shipping. I love Craigslist.
I was going to go right onto getting the RP installed, but from what I’ve discovered, I should get my rafters ready before I call the crane. Yes, I’m calling in the big boys. I wanted to do this all myself, but a couple of realities have surfaced in my mind:
#1: I don’t want to die installing a 5 ton log 30′ in the air, balancing it on 2 RPSL’s. This is seriously heavy stuff. Yes, the wall logs were heavy, but not this heavy. Lots of things could go wrong.
#2: I would have to spend $260 on 2 chain hoists (I need some 5 ton hoists for the RP), plus $160 on 2 new 13,000 lb chains. That’s over $400. The crane guys say $130/hr, 4 hour minimum. That’s just over $500. I think my life is worth at least $100.
#3: I can probably get the RP and all 28 rafters installed with a crane in about 4 hours. If I do it myself, I figure a couple weeks getting the RP supports in place, and about a month to get the rafters up. Saves me a month of work, for just a little extra $$$.
We are nearly out of trees that are straight enough for rafters, so I talked to one of my neighbors- she’s letting me have probably a dozen more trees from her 5 acres for my rafters, if I bring her a plate of stuffed lasagna shells my wife made. I think there are probably a dozen (trees, not stuffed lasagna shells- stay with me) on my property, and probably about half a dozen on the next door property. I just have to cut them, move them, rack them, and then mill them into 4×12’s (work= yes, but I don’t have to peel them – yay!).
Stay tuned. I’m sure there will be a video of a crane and a 5-ton log flying over my house in the near future….
Our cap logs are installed- this means we are almost ready to enter a new phase of construction. It has been a long hard road. Some folks at LHBA claim we are moving at “one gear below breakneck speed” using our lifting poles, but it often doesn’t feel that way…
What are cap logs?
Cap logs are the final logs on the walls. In the photo above, they are the ones that stick way out on the front of the house. Paired with ‘double-butt logs’, they hold up the roof rafters, and give the roof enough overhang to protect the wall logs from rain. In a kit log home, they usually don’t stick out much, but for a butt & pass log home – with an expected lifespan of 350 – 450 years – they are a major part of that lifespan.
Notes on installation
Our plans are for a 40’x40′ cabin. The overhangs on the roof protrude out 7 feet past the walls on the gable ends, and about 4 feet out on the eave side. This means the cap logs have to be 7’+7’+40′ = 54′ long. Also, they need to hold up the roof rafters, so my goal was to make sure they were 12 inches minimum on both ends. With our tapered logs – this meant that the butt end would have to be absolutely huge to ensure at least 12 inches at the tip. This would also throw off our level layers (all 4 corners should be the same height).
The solution I came up with was to take two normal sized logs, splice them together and put them up as one log together, and let the butts hang out over the ends.
Easier said than done. How do you lift half of a log when the lifting poles are in the corners? In other words, how do you hold up a log in the middle of the house where there are no lifting poles? Easy (not easy)- you chain both together and lift them at the same time.
Although I could have (maybe) installed a temporary center lifting pole- this would take a lot of energy and time- I would basically need a 30′ lifting pole (the size of an RPSL) installed. It would need to be chained to the wall, along with pulleys, etc. Lots of work for something I would use once. So I decided to try everything else before this idea.
Using a cradle (suggested by Plumb Level), we were able to “safely” hold the logs in place while we pinned them. I won’t go into the details (unless someone is dying to know), but there were a lot of scary moments- like once I got the chained logs in place, I had to remove the unused portion of each log- this involves cutting the excess of the log, and hoping the desired portion just falls into place, with no way to chain it or support it until it was in place. The cradle helped a lot, but there were no guarantees.
Some unlucky (and funny) events from Course 13
First there was the “pinned boot” incident:
There was a gap in the log I was working on. I was perched up on top pinning it into place, and my boot happened to be placed right where the pin was coming through. Once they go in, they don’t come out. It didn’t pinch my foot- just the edge of the boot- and tight enough that I couldn’t get my foot out. I was stuck. I called for Julie’s help. Now she is not normally one to climb ladders of any size, but she courageously started to climb. She was clinging to the ladder like she was a thousand feet off the ground. I kept encouraging her and she finally climbed up high enough to hand me my crowbar, and I was able to loosen the pin just enough to free my boot. LHBA folks suggested I just leave it there and chink around it, ha ha! ……No.
We had this log that was the right dimensions, but had a nasty hook in it at the tip. No matter how we rotated it, it wouldn’t lay flat. We decided to pin it anyway, and just deal with it later. It ended up being flat most of the way, until about 6′ from the end where it had this big bow in it. Since that corner (NE) has been historically low, we decided having the extra height in the corner would help get the height back up to where it needed to be. But since you can’t accurately measure the height on an odd row, we’d have to wait until layer 14 to find out if it was helping or not. And it is: before the cap logs, our heights worked out great- starting at the NE corner and going clockwise, we have 17’8″, 17’8″, 17’7″, 17’7″. For non-builder types- this means the East and West sides match each other exactly for height, while between the two sides, we are off by 1 inch. Remember- this is all using tapered crooked logs with knots and bends- a real testament to the Butt & Pass method.
And the burned out motor on the drill incident: It is a Black & Decker 1/2″ drill that didn’t really want to drill 300 holes, but it held up for the most part, and then just gave up with the drill bit lodged 12″ down in a log. So I left it stuck up there; “sword in the stone”-like, for the weekend. I figured more power to the idiot who decides to try and steal it. There were no takers.
And five minutes later, the “what the heck happened to the jack hammer” problem: it just lost power in between pounding rebar. I took it home- I guess all the vibration and the weight on the cord from being up so high pulled its guts loose from the switch. I put a new clamp on the wire, taped it in place, and then put the handle back on. Then I taped the cord to the handle on the outside to alleviate some of the stress.
The final height of our cap logs determines the final headroom height at the top of the stairs, since they are on the eave side of the house up against the wall. It works out to be (starting at the NE corner and going clockwise): 18′ 4 1/2″, 18’6″, 18′ 5 1/2″, 18′ 4 1/2″. Pretty good.
Now we finish with double-butt logs – these are not logs with 2 butts on them- they are logs that, instead of being normal “butt and pass” logs, are just logs that butt up against their neighbor logs on both ends. In this case, the logs they butt up against are the cap logs.
After that, we begin the next phase: installing the RPSL’s (Ridge Pole Support Logs). Two of these get bolted to the walls. Along with one in the middle. They are 30′ tall, and they hold up the Ridge Pole – which holds up the rafters and the roof.
The Ridge Pole is a monster sweet gum tree from our woods. It is by far the biggest heaviest longest and straightest log I’ve ever cut down. So far, it has evaded me being able to move it. But it won’t for long.
We also need to commit to a height for our girder log. This log spans the width of the house and holds up the 2nd floor. It also ties the East and West wall together so the rafters don’t push the house apart. It provides the “rigidness” that keeps the house tight. At least a little.
I don’t want to think too far, but I’m hoping we can get the roof on this summer.
We had a lovely visit from some LHBA members- Gary (Mosseyme) from East Tennessee came and looked one day in the rain and gave me a lot of good tips, and encouragement. Also, ‘Sdart’ on the LHBA forum- Sara and Rene were very nice and came out to see our progress. They are building in extreme Northern Idaho in an off grid location. They have been to many LHBA homes over the years all over the country and Sara told me, “even after looking at pictures, these homes are always impressive in person.”
I measure trees by their diameter (straight across the butt of the log), while Julie measures the circumference (with a tape all the way around the butt of the log). Either way is fine, but since she’s picking the logs, we’re going with her measurement. The idea in the beginning was to stack logs from biggest circumference to smallest circumference. We got started on the second level, and were at a point where the circumference was about to drop below five feet. And then get skinny dramatically. There were still some big ones here and there that we could cut on our property and next door. Julie identified four that were at least five feet around and asked me to cut them. It was now or never. I cut a couple more that are also pretty big.
That was about a week or so before Thanksgiving. I cut them down, and then started moving them over to my racks for peeling. One happened to be back in a swampy area, so I ran into some problems moving it- couldn’t get close enough with the tractor- even with my 60′ cable. So I took down a pulley off one of my lifting poles and used that for mechanical advantage. It worked, but I broke my rope.
I also bent the forks on the tractor again, and re-welded them, and then bent them again. I have some new 5,000 lb forks from a forklift, but need the ok from my neighbor before I weld them onto his frame that I’m borrowing.
I got all of the logs racked, but it took about three weeks to peel just 4 of them- too cold for the bugs to help, and the sap is like glue. I have some huge calluses on my hands now, because manly. Yeah.
fixed the other truck
Meanwhile, my 1979 Ford F150 was having problems starting. I fought with it all of Thanksgiving weekend- I replaced the starter, the alternator, the ignition switch, and the spark plugs and wires. The only thing left is the cap, but I found out through a great shock (literally), that it is working fine. Only mechanics will laugh….
I needed it running reliably because I’m about to replace the motor in my Toyota pickup. But now it purrs like a kitten, and starts every time.
ordered a new motor
I bit the bullet and ordered a new motor (professionally rebuilt long block). Had to put it on the credit card, but don’t worry, selling the truck will pay off the credit card as well. I’ve been putting this off for almost a year. Last year, you’ll remember I had a valve crack in it, and replaced the head gasket. I guess it also messed up the crank. I’m motivated by the idea that it’s still worth a few thousand $$$, so fixing it will help us fund the roof of our home, which is probably the single most expensive part of this project.
why we hate “daylight savings” or “not daylight savings”
My boss lets me work 6:30 – 3:30. In the winter, this means I have about 1.5 hours of daylight after work. It might seem like a waste to go out there, only to be able to work for an hour, but every little bit of work I can do is progress. Other LHBA members have to stop work altogether because of snow, so I don’t really want to complain. In the summer, I have almost 6 hours of daylight. If we wouldn’t “fall back”, I’d still have 2.5 hours of daylight in the winter. I realize that in the winter we are actually on standard time, but I’d give up an hour of daylight in the summer for an extra hour in the winter; who’s with me?
Last weekend, we burned some brush, and put up a log on Saturday. It was bitter cold in the morning, and windy all day. My lips are still chapped from exposure. This was the first log of the 10th course. We are about 12 feet off the foundation, and about 15 feet off the ground. It was pretty straight but had a long bow in it. While I was lifting it, one of the ropes broke right up near where it was tied to the tractor. It just snapped right off the front of the tractor. I saw a poof of dust, and the log falling. Nobody got hurt, and the house and log are fine. I pinned half the log, then hooked up a chain to the tip and had Julie pull it with the car to get the bow out. But it was still up about a foot off the one below. I went to grab my chain binders to bind it down, and I guess they got stolen. Kinda upset at that, and that we couldn’t finish that log. Went over to Harbor Freight that night for two new chain binders and a chain. This week, I finished binding it and added some more pins.
where do we go from here?
I have a bunch of vacation I have to use at work before the end of the year. Had a big project over the summer/fall that I needed to help out with that prevented me from taking vacation days, but it is winding down. I only have to come to work for 3 days for the rest of the year. And I still have more time from this year, but they let us carry over 40 hours from year to year.
We keep going. The new motor comes in this week. I want to get that job done, and get on with stacking. I ordered new rope, since the existing rope is getting pretty frayed. However, we are getting closer. I may have to hire a trac hoe to come pull my ridge pole out of the woods. The RPSL’s and the ridge pole are the next big items we have to install when the walls are done. After that- I took some measurements on my sawmill- I’m about to turn my 12′ of track into 28′ of track, and will then cut some rafters out of some “still growing” logs.
That’s all for now, folks. Thanks for all the likes on my wife’s video! Comments here are appreciated as well.