Roofs, March 30, 2014

Last post re: the upcoming exams.

Here is the final sketch-up model for you to refer to.  Again, many thanks to Don Gillies for producing the models for all of our benefit.

raft 12

The shot shown the final shingle installation, but does not show the process…I will do a demo on shingle installation tomorrow.

A couple of things to know

-only a total of 4 (count ’em, FOUR) nails will be accepted in the valley flashing;

-those 4 nails need to be within 1 inch of the edge of the steel;

-the shingles need to be installed leaving an “open” valley exposure….you may not like it, but that is what I’ll be looking for;

-nails need to be properly placed and inserted – not on an angle or in the wrong place;

-the shingling pattern as discussed in class, including the correct exposure and alignment of the tabs is the only pattern allowed;

-no mini pieces will be accepted in the valley – use full three tab shingles and use the smaller pieces at the outer end of the roof;

-we will use tar paper as a membrane replacement;

-WARNING: most students consider installing the shingles to be the easiest part of the exam, yet 90% loose the marks associated with this part because they do not follow the guidelines I give them, perhaps because they are rushing to finish.

See you tomorrow…..many of you will use the next two days as practice for the exam on Wednesday, and those who choose to do it on Monday or Tuesday will have to inform me if that is their intention before they start.

Good luck,

J

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About jhcarpentry

I am a teacher in the Construction Carpentry Program at the Chateauguay Valley Career Education Centre (CVCEC) for the New Frontiers School board. This blog is a way for me to connect with my students.
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