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-   -   Screen Porch to 4-Season Room Build (http://www.houserepairtalk.com/f106/screen-porch-4-season-room-build-14882/)

milwaukeehaze 10-09-2012 02:54 PM

Screen Porch to 4-Season Room Build
 
2 Attachment(s)

I have a question on roof insulation, but let me first give a very detailed and accurate description of my project first as it is necessary to answer the question. I had an existing screened in porch attached to the back of my garage, on a six inch thick concrete slab that I am currently converting into a 4-season room. I basically used the existing 4x4 treated uprights and framed out the lower walls and installed windows above on those 3 outside walls. I am in Wisconsin and want to use the room in the Winter at at least 60 degrees F with outside temps averaging in the 20’s in the Winter. Here are the details and a few pictures are attached for reference.

•15’ x 15’ area (one wall up against the back of the garage (wall is insulated on opposite side)
•7’ high ceiling
•The three walls all have 2-3 ft. walls I framed out below the windows, 2x4 studs, fiberglass faced insulation, yet to be dry-walled
•The windows & patio door on the three walls are all double-pane, insulated glass and vinyl clad
•The floor is concrete now, but I am adding a moisture barrier, insulated layer and then indoor/outdoor type carpet
•The heat source will be a natural gas, no vent 20K BTU wall heater

Now my question… The roof is simply a sloping (3-4” drop in 15 ft.) corrugated steel roof framed with 2x6’s on 24-inch centers in a grid pattern. The roof does over hang at the end of the room by about 2 feet with a 4” deep soffit. I know the ceiling being insulated is crucial because the metal roof will just conduct the heat right out of the room. What would be recommended for insulating the roof? Would I use faced or unfaced insulation? I ask this because I need to know if I will have moisture issues, and would the moisture be able to be vented out of the room through the roof (maybe through the corrugated channels in the steel roof out through the soffit (vented)? Or, should I use a moisture barrier insulation for the ceiling and put in a ceiling vent/fan? Any advice will help on the moisture/insulation/ventilation issue I may run into. Thanks!!!

Mark


milwaukeehaze 10-09-2012 02:54 PM

Screen Porch to 4-Season Room Build
 
2 Attachment(s)

I have a question on roof insulation, but let me first give a very detailed and accurate description of my project first as it is necessary to answer the question. I had an existing screened in porch attached to the back of my garage, on a six inch thick concrete slab that I am currently converting into a 4-season room. I basically used the existing 4x4 treated uprights and framed out the lower walls and installed windows above on those 3 outside walls. I am in Wisconsin and want to use the room in the Winter at at least 60 degrees F with outside temps averaging in the 20’s in the Winter. Here are the details and a few pictures are attached for reference.

•15’ x 15’ area (one wall up against the back of the garage (wall is insulated on opposite side)
•7’ high ceiling
•The three walls all have 2-3 ft. walls I framed out below the windows, 2x4 studs, fiberglass faced insulation, yet to be dry-walled
•The windows & patio door on the three walls are all double-pane, insulated glass and vinyl clad
•The floor is concrete now, but I am adding a moisture barrier, insulated layer and then indoor/outdoor type carpet
•The heat source will be a natural gas, no vent 20K BTU wall heater

Now my question… The roof is simply a sloping (3-4” drop in 15 ft.) corrugated steel roof framed with 2x6’s on 24-inch centers in a grid pattern. The roof does over hang at the end of the room by about 2 feet with a 4” deep soffit. I know the ceiling being insulated is crucial because the metal roof will just conduct the heat right out of the room. What would be recommended for insulating the roof? Would I use faced or unfaced insulation? I ask this because I need to know if I will have moisture issues, and would the moisture be able to be vented out of the room through the roof (maybe through the corrugated channels in the steel roof out through the soffit (vented)? Or, should I use a moisture barrier insulation for the ceiling and put in a ceiling vent/fan? Any advice will help on the moisture/insulation/ventilation issue I may run into. Thanks!!!

Mark


milwaukeehaze 10-10-2012 07:55 AM

2 Attachment(s)

Thanks for the reply Neal. I attached some photos of the inside of the ceiling/roof. The channels do run out into the overhang (soffit), so can you look at these photos and confirm your recommendation on the insulation? Thanks!!

Mark


milwaukeehaze 10-10-2012 07:55 AM

2 Attachment(s)

Thanks for the reply Neal. I attached some photos of the inside of the ceiling/roof. The channels do run out into the overhang (soffit), so can you look at these photos and confirm your recommendation on the insulation? Thanks!!

Mark



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