The City history page dates the District of Dufferin to 1971 and includes it in the 1 May 1973 re-incorporation, alongside Brocklehurst and the Town of Valleyview. The neighbourhood directory today lists a Dufferin Neighbourhood Association, with its own boundary map. Sahali has two different associations. If your street is on the Dufferin map, use this page. If it is on a Sahali map, use that hub. Guessing from the view of the mountain will book the wrong context.
Part 28.3 sets Ss at 2.4 kPa for "Mt. Dufferin and south of the Trans-Canada Highway," except Valleyview and Dallas. Part 28.2 sets frost protection at 1.2 metres for the same geography, against 900 mm on the valley exception. Frost depth does not tell a roofer how to flash a chimney. It shows why the City wrote this hillside apart from the flats. Other climatic numbers are supposed to come from the current BC Building Code appendix for Kamloops. This site does not copy an older appendix table and call it current.
What the name does not prove
A house on the hill is not, by the label alone, in trouble. The 2.4 kPa value is a design pressure for new work and alterations that the code covers. It is not a measurement of the snowbank you photographed. Wet snow weighs more than cold powder, so the same pressure is not one depth. If a beam is sagging or a ceiling has opened after a wet fall, call for a look. Do not ask a webpage to certify the structure.
Interface edges still matter. The wildfire plan says many Kamloops neighbourhoods back onto wildlands, and this hill is part of that south-side terrain. Embers, gutters, and wood shakes are the FireSmart questions. They are not unique to the snow clause, which is why the long version lives on the FireSmart page rather than being pasted here.
No cloned repair URL
A separate Dufferin repair page would track the Sahali repair page too closely: shaded slope, higher design load, park or grass at the edge. Those details stay here and on citywide repair. Replacement and metal stay on the replacement and metal pages for the same reason. When you call (236) 836-0303, say Mount Dufferin or Dufferin and the street. The local roofer needs the address, not the bylaw's abbreviation.
Straight answers
Is Dufferin the same page as Sahali?
No. The City lists a Dufferin Neighbourhood Association, separate from the two Sahali associations. The building bylaw uses the words Mt. Dufferin when it sets the higher snow load and the deeper frost line. The hills touch. The name in the bylaw is the reason this page exists.
Does 2.4 kPa mean my Dufferin roof will fail?
No. It is a design ground snow pressure for building work, paired with a rain component of 0.2. An existing house is not automatically undersized because the hill is named. If you are worried about sagging, ice, or a leak, that is a visit, not a calculation this website will fake.