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jedwar
Joined: 28 Dec 2005
Posts: 2
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 Posted: Wed Dec 28, 2005 8:02 am Post subject: Insulating curved solid stone walls |
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Hi
I'm seeking ideas on the interior insulation of solid stone walls of a lighthouse being renovated for residential use.
I'm not just looking for one solution to be considered but many thoughts on differing applications to insulate the Curving solid stone?
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gleearch
Joined: 07 Jul 2005
Posts: 185
Location: Oakland, CA , USA
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| Posted: Wed Dec 28, 2005 9:29 am Post subject: |
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Why not fur out the walls with regular steel studs and use icynene spray insulation? Icyene is enviromentally friendly and also forms a effective vapor barrier, thereby getting an overall effectiveness much higher than fibreglass batts.
Steel has high embodied energy in it's manufacturing process but nowadays is mostly from recycled steel. If you use wood, make sure it's FSC certified. You may want it to be pressure treated if there is a lot of moisture present in that lighthouse.
If you use rigid insulation, make sure it's EPS and does not contain formaldehyde or CFCs. You could use thinner boards so that it's easier to set up against the curved walls and build up layers till you get the right R value. Stagger the joints.
Anyway, that's just off the top of my head. Good luck.
_________________
Gerard Lee Architects
http://www.gleearchitects.com
San Francisco bay area, Oakland, CA based sustainable architecture & planning firm specializing in residential, education, commercial, community & civic projects. |
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jedwar
Joined: 28 Dec 2005
Posts: 2
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| Posted: Wed Dec 28, 2005 9:53 am Post subject: rigid panels |
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The idea of lanimating thinner rigid panels to aquire the curve is my starting idea but keen to investigate other options, laminating polyurethane panels is my second guess. I'll look into your first suggestion, I'm a big fan of sprayed applications.
other ideas welcome? |
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SDR
millennium club
Joined: 02 Oct 2004
Posts: 1712
Location: San Francisco
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| Posted: Wed Dec 28, 2005 10:35 am Post subject: |
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The logical interior finish, following on Mr Lee's recipe, would be plywood panels the width of the final inner layer or insulation boards, splined to each other ? The cylindrical form of the wall plane would mean that well-fitted panels would be virtually self-supporting (in terms of remaining stationary and stable) except at the ends. . .though to keep joints closed a series of clips glued behind the joints (if not continuously glued splines) might be indicated.
SDR |
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P.C.
millennium club
Joined: 26 May 2004
Posts: 2163
Location: Denmark
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| Posted: Wed Dec 28, 2005 3:14 pm Post subject: |
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Hi
It is proberly an expensive experiment ,but maby over time more sense if you cover the outside with a few layers of clear polymers, now I don't talk about some fiddled work but the same system that make sun water heaters maby with not as good insulation between the layers of plastic but if you place the light house inside a structure that acturly insulate, instead of moving the condensating problems into the inner walls of the Light house.
Now my best suggestion and another suggestion are to build a cube hollowed from a bigger square form subtracting the form of the lighthouse --- that way even rain water will be lead away landing on the angled frames of a 3D-H ,you just need to section it right --- sort of a huge structure with maby meters between the 3D-H sections an "open" structure where no rain can fall inside as it is catched by the angled sheets ; now it's just a fast reply but if you want so, I could easily make a drawing and it will be cheaper than any other solution. |
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P.C.
millennium club
Joined: 26 May 2004
Posts: 2163
Location: Denmark
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| Posted: Wed Dec 28, 2005 4:24 pm Post subject: |
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gleearch
Joined: 07 Jul 2005
Posts: 185
Location: Oakland, CA , USA
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| Posted: Thu Dec 29, 2005 9:20 pm Post subject: |
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Another product you can look at for both exterior and interior sheathing is plygood ultra. Because of it's composition it reduces the possibility of mold growth. Obviously in your case, the interior face of the insulated wall. I am assuming you need to retain the exterior appearance of the lighthouse for historical or other aesthetique reasons.
If you consider spray in cellulose insulation, do some research on those that have an acrylic binder. It helps prevent the cellulose from slumping to the bottom of the wall. The other thing is preventing condensation within the insulated cavity by designing your dewpoint very carefully.
Oh, they now manufacture an alternative rigid insulating panel made from processed recycled tyres and rice straw. A good example of applying waste and recycled products for building construction.
It sounds like you have a fun project. Good luck.
_________________
Gerard Lee Architects
http://www.gleearchitects.com
San Francisco bay area, Oakland, CA based sustainable architecture & planning firm specializing in residential, education, commercial, community & civic projects. |
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BuildingStoneMag
Joined: 05 Jan 2006
Posts: 2
Location: Atlanta
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| Posted: Thu Jan 05, 2006 1:06 pm Post subject: Lighthouse Renovation |
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Would love to hear more about this project. Drop me an e-mail when it's near completion.
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Jennie Farnsworth
Editor, Building Stone Magazine |
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TLWalkerAIA
Joined: 16 Apr 2004
Posts: 129
Location: Seattle Washington, USA
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| Posted: Thu Jan 05, 2006 9:49 pm Post subject: Terry Walker |
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If this is a real problem I can help you.  I know how to solve this problem in a marine environment. Contact me at :
Terry.walker20@verizon.net.
_________________
Terry L. Walker, AIA
Terry L. Walker, Architects
terry.walker20@verizon.net |
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