This information has been archived because it is outdated and no longer relevant. This information has been archived because it is outdated and no longer relevant.
Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats on the "Contact Us" page.
9.26.4.8.(1) | Application | Intent |
| OH1 | OS2 | OS1 | OP1 | OS3 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Installation of saddles at junctions, more than 750
mm wide, of sloping roofs with the upper side of chimneys,
on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions:
except as stated in Sentence 9.26.4.8.(5), which applies to
shingle roofs where the intersection between the chimney and
roof is protected by sheet metal flashing that meets certain criteria.
|
| Top of Page | |
| Intent | Intent 1: To limit the probability that the flow of water down a roof's
surface will be interrupted by a wide chimney, which could lead to a temporary
increase in water depth beyond the depth protected by roofing or by the vertical
leg of flashing at the chimney, which could lead to precipitation or meltwater
ingress, which could lead to damage to masonry or to chimney liners from freeze-thaw
stresses, which could lead to the escape of heat or flames, which could lead
to the ignition of combustible building components, which could lead to harm
to persons [see analysis for Sentence 9.21.4.6.(1)]. |
| Top of Page |