That could be a flat if the note was previously natural, or a natural if the note was sharp.
Step 1: 4n=12 Step 2: divide both sides by 4 Step 3: 4n/4 = 12/4 Step 4: reduce Step 5: n=12/4 Step 6: n=3
The steeper the pitch of any roof, the more resistance it has to developed live loads, such as snow or ice. The difference between a 3/12 and a 4/12 is not great, but the 4/12 is stronger. Another issue to consider is the roof's ability to shed water...3/12 is typically the shallowest pitch recommended for both metal and ashaltic type shingles. A 4/12 is a step better and is more likely to prevent failures during the life of the roof and will serve the roofing warrantee better.
Step by Step - 1991 The New Car 1-12 is rated/received certificates of: Argentina:Atp
Step by Step - 1991 Boys Will Be Boys 2-12 is rated/received certificates of: Argentina:Atp
Step by Step - 1991 Goin' to the Chapel 7-12 is rated/received certificates of: Argentina:Atp
Step by Step - 1991 Loose Lips 6-12 is rated/received certificates of: Argentina:Atp
Step by Step - 1991 Boys Will Be Boys 2-12 was released on: USA: 11 December 1992
Step by Step - 1991 The New Car 1-12 was released on: USA: 6 December 1991
Step by Step - 1991 Loose Lips 6-12 was released on: USA: 23 May 1997
Step by Step - 1991 I'll Be Home for Christmas 4-12 is rated/received certificates of: Argentina:Atp
Tap Step was created in 1979-12.
If I remember right it should be between a 5 and 6 pitch. Between a 5/12 pitch and 6/12 pitch. If it was 27.5 degrees it would be a 6/12 pitch. Enter in "roof pitch" in the Google bar and several sites will come up where you can calculate pitch. The 12 means 12 inches. So that it would be aproximitely 6 inches rise to 12 inches of run. Hope this helps and I hope I remember my roof pitch angles. It has been a few years since I have done it.