Q&A Forum http://www.greenbuildingadvisor.com/community/rss en Sealing under-layers of built-up exterior foam panel insulation http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101015/sealing-under-layers-built-exterior-foam-panel-insu <p>Hello again GBA'ers.</p> <p>Making progress on the details of my 6" graphite EPS over Zip panel exterior wall assembly, and coming down to the final few questions, I think.</p> <p>At this point I want to use ThermalStar GX EPS, and the assembly will three layers of 2" to get to the final design depth, the outermost face of the outermost layer will be faced, but none of the others will be, which leaves two (I think) questions:</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101015/sealing-under-layers-built-exterior-foam-panel-insu" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101015/sealing-under-layers-built-exterior-foam-panel-insu#comments Green building techniques Sun, 19 Feb 2017 21:15:00 +0000 GJPehl 101015 at http://www.greenbuildingadvisor.com How to get notifications from comments http://www.greenbuildingadvisor.com/community/forum/general-questions/101014/how-get-notifications-comments <p>Hello GBA.</p> <p>I'm getting notifications of comments to questions that I ask, but I'd also like to get notifications when from _other_ threads, especially threads that I comment on.</p> <p>Is there a way to do that?</p> <p>Thanks in advance!</p> http://www.greenbuildingadvisor.com/community/forum/general-questions/101014/how-get-notifications-comments#comments General questions Sun, 19 Feb 2017 21:00:08 +0000 GJPehl 101014 at http://www.greenbuildingadvisor.com Do pellet stoves generate much creosote? http://www.greenbuildingadvisor.com/community/forum/general-questions/101012/do-pellet-stoves-generate-much-creosote <p>Having lived in a house with wood heat for over 40 years, I've fairly familiar with the ways in which wood stoves can contribute to creosote formation in chimneys and stovepipes. However, I'm not very familiar with pellet stoves.</p> <p>A friend recently wondered about creosote formation in a chimney connected to a pellet stove. So I'd like to hear from owners of pellet stoves: Does your stove lead to more or less creosote formation than a typical wood stove?</p> <p>-- Martin Holladay</p> http://www.greenbuildingadvisor.com/community/forum/general-questions/101012/do-pellet-stoves-generate-much-creosote#comments General questions Sat, 18 Feb 2017 00:00:03 +0000 user-756436 101012 at http://www.greenbuildingadvisor.com SIP roof issues http://www.greenbuildingadvisor.com/community/forum/general-questions/101011/sip-roof-issues <p>Hi Everyone.</p> <p>I was listening to Mr. Holladay on the FHB podcast and started getting nervous about my SIP roof built 3 years ago.. We live in central Washington and the climate is pretty cold in the winter (mid 20's) and hot in the summer (upper 90's). The humidity levels are low year round. We get about 2-3 of snow on the ground by February. The roof is 1/2:12 pitch and is 64'x32'. The bottom seams of the panels were taped, although the tape didn't seem to stick all that well. The humidity in the house is around 28-32% year round. The ceiling is painted drywall.</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/general-questions/101011/sip-roof-issues" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/general-questions/101011/sip-roof-issues#comments General questions Fri, 17 Feb 2017 22:46:47 +0000 user-6425079 101011 at http://www.greenbuildingadvisor.com I have two specific questions regarding efficient home-run plumbing design http://www.greenbuildingadvisor.com/community/forum/mechanicals/101010/i-have-two-specific-questions-regarding-efficient-home-run-plumbi <p>My wife and I are currently working with a local design/builder on a set of plans for a small home in Silver City, NM (4B). The main bathroom, mechanical room and kitchen are all grouped together on the 850 square ft main floor. A second bathroom, located directly above the main bathroom, is planned for the 550 square ft loft. The wall assembly will be 2*6, dense pack cellulose, 1 inch of EPS exterior the sheathing, and fiber-cement siding.</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/mechanicals/101010/i-have-two-specific-questions-regarding-efficient-home-run-plumbi" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/mechanicals/101010/i-have-two-specific-questions-regarding-efficient-home-run-plumbi#comments Mechanicals Fri, 17 Feb 2017 22:10:58 +0000 user-6437702 101010 at http://www.greenbuildingadvisor.com Installing LP Smartside over foam and 24 inch centers http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101008/installing-lp-smartside-over-foam-and-24-inch-cente <p>We’re building a new home (SW Virginia) with 2x6 studs on 24 inch centers. We had hoped to use 1.5 to 2 inches of EPS rigid foam to the exterior of the sheathing, then 3/4 inch x 4 inch plywood furring strips, then LP Smartside lap siding. We knew we had to use the 76 series Smartside product for the 24 inch centers. Then I discovered that LP’s installation instructions specify 1.5 inch x 3.5 inch furring strips for foam greater than 1 inch in thickness, so I guess that would basically mean a 2 x 4 stud for every 2x6 stud in the wall.</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101008/installing-lp-smartside-over-foam-and-24-inch-cente" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101008/installing-lp-smartside-over-foam-and-24-inch-cente#comments Green building techniques Fri, 17 Feb 2017 17:20:08 +0000 user-6356169 101008 at http://www.greenbuildingadvisor.com Mini-Split & Generator vs Wood Stove http://www.greenbuildingadvisor.com/community/forum/mechanicals/101006/mini-split-generator-vs-wood-stove <p>Hi,</p> <p>I'm about to build a house about 8 miles outside of Brockport, NY (near Rochester). The lot has electricity but no gas. I would like to heat my house off mini-splits, and I'm currently having a Manual J done to determine feasibility. The footprint of the house almost guarantees that I will need more than one small mini-split rather than one central unit. I plan on having a backup generator.</p> <p>Here's the question: Should I put in a wood stove for backup heat, or simply put a small minisplit on the generator?</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/mechanicals/101006/mini-split-generator-vs-wood-stove" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/mechanicals/101006/mini-split-generator-vs-wood-stove#comments Mechanicals Fri, 17 Feb 2017 14:48:54 +0000 user-5146290 101006 at http://www.greenbuildingadvisor.com Where to vent the dryer and range hood exhaust? http://www.greenbuildingadvisor.com/community/forum/general-questions/101003/where-vent-dryer-and-range-hood-exhaust <p>I am building a house with the dryer and the range located in places where it would be difficult to vent them anywhere other than through the roof or through the vented soffit at the eaves of the house. (It's about a 40 foot run to get to the gable end)</p> <p>I understand that venting an appliance through vented soffit means that the humid air will likely get sucked up into the attic where you don't want it. However, reducing roof penetrations appeals to me and I am concerned about lint build-up being harder to deal with if the dryer is venting through the roof.</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/general-questions/101003/where-vent-dryer-and-range-hood-exhaust" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/general-questions/101003/where-vent-dryer-and-range-hood-exhaust#comments General questions Fri, 17 Feb 2017 11:09:25 +0000 user-1120870 101003 at http://www.greenbuildingadvisor.com Rainscreen with gapped panels http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101002/rainscreen-gapped-panels <p>Hello Again GBA'ers</p> <p>We have a design for a ventilated rain screen ventilated with mixed cladding materials. This will be exterior to 6" of foam board insulation. One of the materials is Equitone, and the manufacturer recommendation calls for 3/8" gap between panels, they supply a butyl tape to face the furring strips, both to provide a dark color on the reveal and to provide a moisture barrier on the face of the wood furring strip. The panels are very long, and there will be long horizontal gaps.</p> <p>Two questions:</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101002/rainscreen-gapped-panels" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/green-building-techniques/101002/rainscreen-gapped-panels#comments Green building techniques Fri, 17 Feb 2017 02:47:37 +0000 GJPehl 101002 at http://www.greenbuildingadvisor.com How to fix my unvented cathedral ceiling roof assembly? http://www.greenbuildingadvisor.com/community/forum/general-questions/101001/how-fix-my-unvented-cathedral-ceiling-roof-assembly <p>We tried to build a house with a fairly tight envelope based on reading I could find. Well, apparently I messed up, so really want some advise before I mess things up more.<br /> House is in central Missouri( zone 4, but real close to 5). Small, 750 sf but with an open loft making it about 940sf. Sealed Concrete slab as the finished floor, and new construction ( under roof in may but moved in The next January). Red metal roof and one side of that faces north..<br /> Walls are 2x4 and we used open cell foam with 1/4" foam inside the studs as an air ( not vapor) barrier.</p> <p><a href="http://www.greenbuildingadvisor.com/community/forum/general-questions/101001/how-fix-my-unvented-cathedral-ceiling-roof-assembly" target="_blank">read more</a></p> http://www.greenbuildingadvisor.com/community/forum/general-questions/101001/how-fix-my-unvented-cathedral-ceiling-roof-assembly#comments General questions Thu, 16 Feb 2017 22:03:23 +0000 Brenda K 101001 at http://www.greenbuildingadvisor.com