Friday, 14 September 2012

Rotten Roof Repairs

A bee's nest behind a bit of rotten fascia board is what started a larger-than-we-thought-job this week. The painters had been prepping some of fascia when they noticed how rotten a section of it was under a chimney. I went up, stripped off some of the slates and investigated.

Rotten fascia was hiding some deeper problems
The fascia and soffit were both weak with wet rot but as I took back the slates I could see that the wall plate and bottom end of the rafters were rotten as well. 
Not trying to sell a tool but the Fein Multimaster is amazing for this type of work
So I then started quite a major repair for this little bit of the roof. Firstly I removed all the rotten wood, cutting sections out. When I cut the fascia out I used the Fein Multimaster to cut it on a 45 degree angle so I could easily fix a new piece back in, This tool is incredible for doing this, it would be a lot harder by hand and cause more disruption to the roof.
some rooten timber around this chimney
I started by adding in a section of wall plate. I used oak as that is what the original was, I used a good sized half lap joint to make sure the two pieces were fixed together and bedded it on a layer of mortar. I then cut a rafter end with birds mouth and added it into the roof. I made sure it was long enough to sit on the first purlin up in the roof so it would be structural rather and fixed to another rafter and also to carry the soffit and fascia when I add that later. I decided to double this rafter up around the chimney as it will make the lead work easier at a later date.
New rafter added and a new section of wall plate half lapped in place
With all the structural work done I cut a new bit of soffit and fascia to fit. When adding wood like this it's essential that they are added at an angle so if/when  the wood shrinks it doesn't leave a big gap. I replaced more fascia that I had originally though as it was rotten quite far up. I then treated all the wood before I covered it back over.
The finished repair, ready for a bit of paint
Quite pleased with the repair but it took a lot of time and it's never fun playing with rotten timber!

Sunday, 2 September 2012

Old Crosscut Saw

My work this week wasn't really blog worthy - unless you want to see pictures of plasterboarded walls!
Old crosscut saw
So instead I thought I'd blog about my latest acquisition from the car boot sale this morning - an old crosscut saw. Now I could do with a bit of advice on what the correct name is for this saw. I know a lot of this style were meant to be one or two man saws but this one is 58 1/2" long so it would be pretty tricky to use it on your own!
Front handle - notice the different teeth at the start
Handle at the back
It's in great condition, the teeth are all there and the curve of the blade looks like it's never been messed with, in fact It almost looks as though it's never been sharpened. Not bad for £4 (he wanted £5 but I haggled him down). The rust is only light on the saw as well with no pitting.
Curve of the blade
So if anyone knows the right name for the saw and the type of teeth (which I'm fairly sure I know but I'll test you all anyway) please let me know.
I'm very tempted to mount this saw on the wall going up the stairs and then just use it for special occasions!

Saturday, 25 August 2012

Lead Work

Parts of certain trades fall out of favour or get past on to others.
This is what has started to happen with lead work, as plumbers become more and more expensive it falls to carpenters and roofers to do the lead work required on old buildings. It's something I've been doing since I was trained up as we used to do a lot of roofs.

Roll mops and lead on a roof in 2005
 Cutting and folding the lead, beating it into shape and knowing how it moves with different temperatures is key to making sure that the lead makes the roof watertight and it will last for many years.
Andy, Del and me working on a flat roof 7 years ago
 Sometimes you come up against a problem where cutting or folding won't be good enough - here you have to weld it. It was on the roof on a steel frame that the box gutter against the existing wall would require some lead welding. Luckily the guy I'm working for got an old school plumber in, he was trained in the traditional way to do lead work. The guy was 67, so we carried up the lead for him and I ground out all the masonry so it could be fitted (dusty job), but he knew his stuff.
My first attempt at lead welding (It was raining during this photo!)
I showed a real interest in what he was doing (and fixed his mallet for him), in return he showed me a little bit of lead welding, how to set up the blow torch to get the flame right and how to join two pieces together. I practised on some offcuts and then let him carry on with the real job of fitting the lead to the gutters we made.
welding on the roof - a water proof joint
I hope I get the opportunity to work with him again so I can learn more about lead work and how to weld it together. It seems fewer and fewer people can do this, instead turning to fibreglass, so it would be good to be able to do it myself when I need to. Bit more practise needed yet though!

Tuesday, 21 August 2012

The Darkside Of Stairs

A fairly unrewarding job today. Not that's its not been challenging it's just that no one will really know what I've done when it's covered over.
I've been battening out the underside of a flight of stairs (and now I've got to plasterboard it). If I do it right the plasterer will be able to skim a beautiful twisting curve all the way up underside of these stairs.
Looking up at the underside of the stairs
As you can see from the photo I've had to add a fair few battens to get the curve right . I've also been using the electric plane to take the edges off of these battens on the correct side so it all flows from one side to the other as it twists. This is a job that would be eaiser with the traditonal lath and plaster but I can't see the plasterer mixing anything up with horse hair in!
Quite a frustrating job really - but it will look good and should add some character to the house when it's done!

Saturday, 18 August 2012

Letter holder

I saw the oak letter holder I made whilst doing the utility room revamp again today and I was really pleased when I saw a friend had taken the time to paint the words "letters" one it. They'd stencilled on the outline in pencil then painted it freehand up to the lines.

 
Completed letter holder
 A really professional job and its really made the piece stand out.

Thursday, 16 August 2012

Fitting Stairs

It's been a long while since I've fitted any stairs. This can be the trouble with the huge range of jobs a carpenter is expected to do, it can be a long time between doing certain jobs - good job I've got a good memory for things like this!
Fitted flight of stairs
There's two flights to fit, we finished the first today and made a good start on the second. As there is winders (the angles steps that make the flight go round the corner) some of the assembly has to be done on site using lots of glue and wedges.
Underside of stairs
The first flight went in well, we've temporary propped it up until we've built the stud wall to carry the back corner of the stairs (although they do hold their own weight now). I've still got to infill the sides and add handrail at a later date to these. 
Checking the treads are level
The second flight are directly below the first and are the same size with three extra treads on the bottom to give it the extra height.
Dry fitting the second flight of stairs to mark positions
We dry fitted these in this afternoon as they're in a tighter space than the first ones. It's going to be much more difficult to get to the underside to fix the treads and wedges so we need to make sure everything is cut ready. It's at time like this I could do with a small apprentice to get into the tight spaces (I remember being sent on my belly to fix the last few glue blocks!).

Friday, 3 August 2012

Fitting A Large Light Well - Part 2

Somehow I always end up being the guy holding the instructions. This roof light was no exception, its been like a big jigsaw puzzle packed in 12 different boxes. I didn't take any pictures of us putting it together (mainly because it kept raining) , but here it is almost finished.
Large light well
It's aluminium frame with a UPVC top and bottom, coated in fake oak. Although fake oak wouldn't be my first choice, I can see why they went for it. It looks quite good from a distance and needs no maintenance (which is always an advantage when it's way up on a roof).
The fake wood looks OK from a distance
It took some brain power to put together (more than I'd care to admit), as the instructions weren't the best and they were to tell you how to put a conservatory up! We were also three bolts short but we managed to find replacements after we'd searched the whole roof and surrounding area. We got there in the end though.
Looks quite posh!
This is the first aluminium/plastic window thing that I've put together from scratch, If I had to do another it would take half the time (but that's normally the case).
The opening light came the wrong colour so we couldn't finish it!


There's still a bit to finish as the opening light (window) came just painted brown so needs the fake grain adding, this means we couldn't get it sealed and water tight tonight. We've also got to bring the fibre glass up the sides of the wooden frame and repair all the slate work, but that can wait for another time.
Anyone else been fitting windows like this lately?

Tuesday, 31 July 2012

Cut Roof On A Steel Frame

If you've been following the blog you're know I've been doing quite a bit of roofing lately.
This is our latest one (with the other carpenter on site):
The Orangery

Good view of the new roof
 Quite an interesting roof as the one side is fairly normal, except it sits on a wall plate we had to bolt to the steel and the top has to notch around the ridge beam.
Picture showing the top of the rafter nothced round the steel and ceiling collars

Small birds mouths with the end of the rafters trimmed to make fitting fasica easier
 The other side finishes into the existing wall, so a timber first had to be bolted along it (working out the height for this was quite tricky) and then the rafters cut to fit between.
Other side into the existing wall - supporting timber is bolted

Tight reversed type of birds mouth
Enjoyable roof again though. The outside details for fasica and bardge board are going to be difficult but I'll post about that when we do it. We've got the box gutter to put on tomorrow (where the roof meets the wall) before we start back on our large roof light installing the plastic frame.

Tuesday, 24 July 2012

How To Make A Thermalite Saw

Brick layers are always trying to nab carpenters old saws to cut Thermalite block with. I've managed to make the bricklayer on site a little happier by making the saw cut a little better for them. I know it works as they asked me to alter another saw for them yesterday!
Saw Set
All you need is an old panel saw and a saw set.
Adjust the saw set so it's altering the teeth of the saw to the maximum (in this case it's to 4 teeth per inch) and work your way along the saw, setting every other tooth. When you've finished one way turn the saw around and set all the teeth you missed out. The saw set is basically pushing over each tooth making the kerf wider and therefore the cut more aggressive.
The Set in clamping mode
The "tooth" that pushes over the teeth on the saw giving it's "set"
A much more aggressive saw
Doing this isn't as good as buying a proper Thermalite saw but it is much cheaper and it works pretty well. It makes the cut much more aggressive and faster as well as clearing out the waste better, stopping the saw from binding which can be a problem when using an old wood saw. I also used it on cutting kingspan and it cut much faster than a normal saw would.

Friday, 20 July 2012

Fitting A Large Light Well - Part 1

The second half of this week the other carpenter and myself have spent installing the frame work for a large light well that is going above the stairs.
We first had to cut into the flat roof and make a hole the right size. Below the roof a different carpenter had already installed the supports to take the extra weight of this roof light.
The roof before we started (well a little hole to get up)

The frame work was relatively straight forward. We set the laser level to make sure the top was bang on, as the roof itself is sloping, also getting the frame square was really important otherwise the roof light won't fit when it comes.

Frame work

Frame work making all sides level
 Once we finished the frame we covered it in 18mm WBP ply for the lead to be fixed to, we formed a box gutter at the back just below the ridge and added fillets all the way round so when new fibre glass is welded/glued on it's not such a steep bend.
Box gutter formed on the sloping side to allow for lead work afterwards

Light well plyed

Ready for the installation of the roof light and lead work next week
It's certainly a large addition to the roof but it adds so much light to what were otherwise a dark flight of stairs. I've never been asked to cut something like this into a roof before (plenty of normal sized skylights though) has anyone else?

Saturday, 14 July 2012

Cut Roof On A Porch

In the UK we describe a cut roof as one you build from scratch, not using preformed trusses. These tend to be the roofs I end up doing and it's funny when I've spoke to other carpenters who avoid them.
Getting the first four rafters up and the ridge is normally the tricky bit
This week another carpenter and myself have put a cut roof on a rather large porch, it has quite a good pitch (40 degrees) and a wide overhang to allow for the stone work that needs to be built up under it.
Ceiling collars added to give the roof that triangulation it needs for strenght

Starting a roof like this is the hard bit, working out the angles, cuts and lenghs. We used a ready reckoner on this roof (a book with tables of values for different pitches), each working it out separately and making sure we arrived at the same answer (we did!). Getting the first four rafters up with the ridge is normally tricky (you could each do with three hand to fix and hold everything). This is the point where you need to make sure all your cuts are spot on before you cut everything else.



Front view of the framed out roof


Side view showing the gable ladder on the front to be supported by the stone work

Picture showing the eaves with soffit added and fasica but barge board still to go on
Once all the rafters were up we added the ceiling collars to strengthen it then work on cutting the rafters to the right overhang and adding a "ladder" to the front to carry the barge board past the stone work that's to go up.
Not bad for under two days work but still a bit left to finish off next week.

Thursday, 12 July 2012

Lean To Roof

We finished battening the lean to roof between to two stone walls this morning. It's been a good job despite the weather and nice to work with another carpenter for a change.
All the rafters had to be cut to individual lenghs, although there wasn't a huge difference between the lenghts (around 20mm in places) its a much tidier job to cut them all like this giving tight "birds mouths" on each one.
All the rafters up
We then fitted the fascia and soffit. The fascia was notched to take the soffit, as although it's more work it gives a much tidier finish and allows for movement in the timber. With the soffit we just finished it past where the stone wall will be built up to, this saves us having to scribe it to the stone work and gives a straight line to finish to.
Fascia board and soffit showing notched detail and mitre for joint
 The next job was to get some felt on the roof and fix the battens at the spacing required for the slates that are going to be used.
Roof felted and battened ready for slates
View form the underside. A row of noggins to be added to firm it up
I love roofing and July is normally the best month for doing it, but the weather has been so rubbish its been more like April, with heavy showers coming and going in the blink of an eye. Still we've a few more roofs to put up and alter in the next few weeks so all we can do is hope for a bit of sunshine!

Friday, 6 July 2012

Roofing In The Rain

I was roofing today. This is normally good. It rained all day, non stop. This makes it bad.
Earlier in the week we had to strip a perspex roof off of an old potting/storage area of the house and all the old rafters.
 
The bricklayer then bedded us some new wall plates on yesterday (in sunshine I might add) so we could have the whole roof to ourselves today. It was raining when I woke up, it was still raining when I got to work and it hasn't let up yet as I'm writing this sat at home tonight.

Needless to say I got quite wet today. I had to resort to a red crayon like pencil to mark the rafters as normal pencils weren't showing up on the wet wood. We did do some of the cutting of the tops inside but as the new roof is sitting on very old walls none of the rafters are going to be the same lenght and each will have to be cut to a different measurement.
I was using two "waterproof" coats on rotation so one could dry out a bit while I got the other wet. Still on the bright side we got some rafters on today and lots more cut ready, hopefully it will be dryer next week and this roof can be the enjoyable job it should be!
Anyone else been working outside in this wet July we've been having so far?
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