Standard Roof Overhang Northern Michigan

R value is a measure of insulation s ability to resist heat traveling through it.

Standard roof overhang northern michigan. Figure r804 3 2 1 2 gable endwall overhang. Astm a653 g90 zinc coated. Roof covering type standard application rate thickness. 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. 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. Astm a240 300 series alloys. In order to stay intact and in place a roof must be able to resist loads both permanent and temporary that are pushing.

The construction of a roof overhang is one important way that homeowners can protect the exterior of their home and preserve its value. In designing the overhanging part of a. 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.

You can click on the map below to find the design ground snow load for that location. 12 oz sq ft for preformed. Overhangs are common in most house designs providing protection against both wind and rain. 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.

Recommended home insulation r values. Roofs are under a lot of pressure. Eave overhangs shall not exceed 24 inches 610 mm measured horizontally. Figure 1608 2 for any location in the state of michigan.

Insulation level are specified by r value. The length of the overhang depends primarily on the climate. They can also include certain architectural features that make overhangs more than just functional parts of the home. Roof slope multipliers for roof components of sloping roofs multiply by the figures given below to obtain the cost per square foot of horizontal projection.

Astm b370 minimum 16 oz sq ft and 12 oz sq ft high yield copper for metal sheet roof covering systems.