Standard Roof Overhang Northern Michigan

Roof pitch is a measurement of a roof s slope expressed as a ratio.

Standard roof overhang northern michigan.

Figure 1608 2 for any location in the state of michigan. Roof covering type standard application rate thickness. Although there is no single standard roof pitch used on all sloped roofs factors such as roofing materials and local climate help to determine the appropriate range of pitches for a given building. 12 oz sq ft for preformed.

Overhangs are common in most house designs providing protection against both wind and rain. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction. Use our michigan ground snow loads map to easily determine the ground snow load 2009 michigan building code. R value is a measure of insulation s ability to resist heat traveling through it.

The length of the overhang depends primarily on the climate. Load limits on the roof of a building. The state has amended the snow load requirements of the 2009 ibc figure 1608 2 and the 2009 irc figure r301 2 5 table r301 2 1 and table. Figure r804 3 2 1 2 gable endwall overhang.

Roofs are under a lot of pressure. In designing the overhanging part of a. Insulation level are specified by r value. Rise multiplier rise multiplier 1 to 12 1 01 6 to 12 1 12 2 to 12 1 01 8 to 12 1 20 3 to 12 1 03 12 to 12 1 42 4 to 12 1 06 15 to 12 1 60 5 to 12 1 08 18 to 12 1 80.

Eave overhangs shall not exceed 24 inches 610 mm measured horizontally. The construction of a roof overhang is one important way that homeowners can protect the exterior of their home and preserve its value. Astm b370 minimum 16 oz sq ft and 12 oz sq ft high yield copper for metal sheet roof covering systems. Recommended home insulation r values.

The siding underneath the overhang is known as the soffit. Astm a240 300 series alloys. Weather and not properly protected by a roof eave or similar covering table r802 11 required strength of truss or rafter connections to resist wind uplift forcesa b c e f pounds per connection r804 3 2 1 1 eave overhang. They can also include certain architectural features that make overhangs more than just functional parts of the home.

Astm a653 g90 zinc coated.