Koi-Kid
New Member
Posts:2
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| 30 Oct 2009 09:12 PM |
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Good Evening:
Been looking at building a SIPs home and thought of
something todayand wonder if someone couldshed some light on the subject. With a
sip's roof what is the usual procedure for finishing off the bottom of the
overhang on the Gable end. There is usually soffit material between the,( I
think it's called the "fly rafter") on the outboard end of standard roof and the
house wall.
Yes I relize there is the osb on the bottom side
but that wouldn't be my choice.
Thanks
Marsh |
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trigem1
Basic Member
Posts:123
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| 31 Oct 2009 03:34 PM |
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What I've done in the past is get 4' X 8' X 1/4" wood sheets, rip to width, paint or stain and nail and glue them to the OSB. Goes up quick and looks great.
Steve
GrandCountySIPs.com |
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| Steve Etten |
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cmkavala
Veteran Member
Posts:4327
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| 31 Oct 2009 06:30 PM |
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Some are available prefinished |
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| Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br /> |
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wes
Advanced Member
Posts:810
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| 01 Nov 2009 07:00 AM |
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We install the same types of overhang finishes as we would use on a conventionally built home,
depending on the type of exterior finishes you intend to use on the house.
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| Wes Shelby<br>Design Systems Group<br>Murray KY<br>[email protected] |
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jstelmack
Basic Member
Posts:127
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| 01 Nov 2009 12:08 PM |
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One consideration is the facia. We extend the roof panel past the exterior wall creating an eave or rake. The SIP roof panel, being thicker then typical rafters, need special thought when considering the facia trim. If the SIP panel is cut plumb at the eave, the facia board needed to cover it wil lbe quite large and may look oversized. A way to minimize that bulky look is to design the panel overhangs with square cuts. It's personal preference, but I like the square cut..
See these drawings for details:
Square cut - http://www.insulspan.com/professionals/specs/assembly/SIP%20DETAIL%2030006.pdf
Plumb cut - http://www.insulspan.com/professionals/specs/assembly/SIP%20DETAIL%2030005A.pdf
We install the same soffit material as we would on stick frame. Typically install it right on the bottom of the panel. Simple and quick.
Hope this helps,
John
PanelStar Custom Homes
dub dub dub panelstar (dot) com |
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wes
Advanced Member
Posts:810
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| 01 Nov 2009 05:30 PM |
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OK, I know this goes against most panel mfg. designs, but I do not extend roof panels to make overhangs. I use 2x splines on my panels and allow these to fly out to produce the starting structure of the overhangs. I rip the splines back to whatever size overhangs the plans call for, usually 4" or 6". Yes, I do have to add OSB on top to level with the top of the panels, and I add additional 2x's to strengthen the overhang, as needed. However, cost savings on the unused sq. footage of panels more than makes up for the additional materials and labor needed, and I get overhangs sized to the plans and to the surrounding neighborhoods. |
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| Wes Shelby<br>Design Systems Group<br>Murray KY<br>[email protected] |
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Koi-Kid
New Member
Posts:2
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| 02 Nov 2009 09:48 PM |
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Thanks to all that replied, Those were some of the
same ideas I had thought of using, Having the thick overhang may not look so out
of place since I will have a shop erected first with overhang on the roof also
and they will be kind of thick so it might just go along with the shop. I'm not
to worried about what the Smith's think! Ha!
Marsh |
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pdk
New Member
Posts:45
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| 03 Nov 2009 06:03 AM |
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If you have a plumb cut on your fascia it will be very wide. What I have done on many designs is to show
a double fascia. It breaks up the large flat area and gives nice lines to your structure. Besides if you use
gutters it breaks up the fascia any how.
pdk |
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trigem1
Basic Member
Posts:123
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| 04 Nov 2009 06:23 PM |
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I think the time might come where a thick roof will be a sign of foresight and intelligence on the owners part for owning an enrgy efficient home. I can hear it now " My dad's roof is thicker than yours"
Steve
GrandCountySIPs.com |
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| Steve Etten |
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tmsu
New Member
Posts:76
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| 05 Nov 2009 10:28 AM |
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Posted By Koi-Kid on 11/02/2009 9:48 PM Thanks to all that replied, Those were some of the
same ideas I had thought of using, Having the thick overhang may not look so out
of place since I will have a shop erected first with overhang on the roof also
and they will be kind of thick so it might just go along with the shop. I'm not
to worried about what the Smith's think! Ha![/quote]
[/quote]
Marsh[/quote]
I have 8.5" SIP panels on my roof and used standard trusses 2' on center that they sit on. I had my truss company design them without the "tail" overhang and just let the panel run over the edge of the wall (2' over hang). I had the edges plumb cut (I like the look). The biggest challenge was ripping an edge on each side of a 2x10 for the sub facia board recessed inside the panel (and connecting the panels at the eaves). I had my roof guy simply put up the facia and soffit in (used metal roof and material). No big issue because I sealed the roof at the wall/truss intersection and have a conditioned attic space. |
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