2011 Renewable Energy Fair: Residential Building Codes for Green Homes

40 my name is beer call to cover for the International Code Council like to welcome you to the show building phones for green homes putting folks in here living a part of the country or the state that has building codes in effect okay if we were to build a hole in your in your city right now and you need to get need to get a building permit possibly okay okay um nothing to talk about how about quote adoption in a few minutes here but if you would build a house a new house in your area you want to put a green robotic you think the building codes might actually have provisions for that no it’s going to do technology actually it’s not new technology but it’s it’s not further it far enough along where it’s actually in the building code and there are a handful things new technologies coming all the time if I wanted to put solar panels I’m on house wrong which I did what language is doubtful there’s issues related to solar panels but doesn’t Billy Coe it address it no so how can we get those things approved if we want to build a new home with some of these things in it what if I wanted to build a straw bale house and mark Morgan or somebody next door do it for me are there provisions in there for straw bale absolutely not but let’s we can work our way through some of those that show you things to think about that will help to build a visual build inspector give you approvals on those items innovative technology by the way if you have questions feel free to ask and then going through did your question we will have a big and then after I spend money in the house afterwards I get to the first inspection then it was just okay okay approved on the 20 laborat plan you’re approved within the building inspector Khan as i already had money and time investment into it that told me I couldn’t do it Wow is there something different about what you’re building sure to the plan a little bitter but the plan already my dog plans okay to the point okay we able to work through that I did eventually but it’s called construction what’s going to have shown oh and that’s kind of dry area hit a 205 to be I’m you do that honey and basically write a research paper about what I was doing alright so you like actually work through it okay was there some engineering and needed on that I’m just nervous we’re going to talk about those kind of things for this that’s a good point absolutely by the way this program normally is a 30 program we’re going to do it 50 minutes so if it seems like i had too much coffee it just go to the front you know but I want to hear your questions and we know through those two few things about myself okay enough now what I do is talk about these innovative products and innovative technology and see how we can work those into the building code or if you’re working but get approvals for those and you know there’s a lot of different green building programs out there the lead and the National green building standard and Minnesota greens daughter and there’s this whole long list and it tell you the truth the provisions related to construction they’re really very very similar just my new differences one program will say if you put up a house and you want to have it have a solar orientation 15 degrees of dead cells you get some points another one will say 20 but they’re they’re really close they’re really similar where you talking about a few things alternate materials thinks when I say alternate meaning they’re not actually in the building code right now may never be in the building code vegetated roof vegetative or vegetative the same thing la construction which is going to get a lot easier solar panels straw bale ram der handful of others and we’ll see how fast we can go ok I want to also talk about what green construction is and why it might not necessarily meet the building code so what’s green construction we want to build energy efficient buildings we want to have as little impact on the environment as possible basically build a structure samer environment use materials that are more local use more materials that are more durable you know we’re kind of doing that right now with homes we build a girl angel body we try to do durable exteriors we try to insulate them very well would probably

try to use proper blazing lot of us are putting on solar and we’re trying to save water just there’s a lot of things kind of doing right now okay there’s like I said there’s a handful of green building programs out there okay what we’re going to kind of make reference to is the International residential code the residential code is its adopted in not every state in the United States and in some states it’s not adopted across the state like I live in Minnesota it’s adopted in Minnesota but it’s exempted in jurisdictions less than 2,500 people now in wisconsin for example they have their homegrown building code i believe this is my opinion that they’ll probably be adopting the international codes in the near future but there are provisions when you look they’re really similar to what’s in the IRC and the old international building code righthand uniform building codes things just don’t change that much so if you’re build a lonely a lot of stain require so people talk about building the code is that actually building green building come building the code means that it’s structurally sound is energy efficient it’s safe for the for the occupants it’s whether resistive the things that it’s always the Dakota is always covered now does the building code cover sustainability green construction some issues in it or some items in it might be green but it doesn’t actually have like chapters referencing green or sustainability now if I’m going to build green does that mean that I’m building trattoria we’re necessarily in fact some of the green building programs make no reference to building codes you can find here there you can look at it you know like one I’m not going to mention any particular green building programs but you can look in one it will say build a weather is just of exterior okay what does that mean in the building code is pretty specific and I’ll show you some things on that but you know summer green bird Billy programs a little bit less to coach more emphasis on durability energy life cycle and we’ll talk about the differences so just because it’s building the green you’re building green doesn’t mean it’s building a code and I just mentioned this a lot of green programs don’t have specific references to cope okay a lot of green building programs Duke base a lot of the information on particular building codes that we have in effect that’s probably that’s probably good because it’s going to make the person that is building to your light green building programs to make it easier for them to comply with the building code okay helping use a green building program you can use it as a municipal atif could adopt one or if you as a homeowner let’s say you choose you just want to build a a better home with less impact on the environment you could hire you know so much of design elite home for you for example that could be your choice that’s why I think a lot of us are here today because we want to build better homes we want to build them with less impact on the environment or energy efficient a municipality could adopt it you know I see this happening right now very often when I what I have seen is in some states they’ve adopted green building programs like for a new jurisdiction only another new jurisdictional a new development will have a development with 30 houses and they’ll say every one of these has to be a leed gold or lead whatever and they’ll kind of make that the emphasis of the development when I mentioned a couple of words prescriptive and performance building codes are pretty much based on prescriptive criteria prescriptive means if you were going to build a foundation let’s say a full basement in your home and you want to use the building code the building codes pretty much going to say if you have a certain depth of basement maybe an 8-foot basement and you’re going to use a certain thickness of wall like 12 inch block and if you have a certain type of soil up against it sand or gravel or having played it’s going to pretty much tell you what kind of steel you need it it’s a prescriptive code which makes it pretty easy if you are going to build within those parameters but if what if you would decide that it’s on your basement instead of building and concrete masonry or a poured concrete wall that you want to build with rammed earth or Adobe or something else then it’s kind of like what right out of the building code so how can we do that okay so a prescriptive as clear-cut limitations I’ll give another example if I wanted to put a house wrap on a house and whether

it’s fell paper or somehow sheathing paper the building codes real specific about what kind of what that paper should what standard that paper should meet and I’ll talk a little bit more about that where if you have innovative cladding materials and stuff under prescriptive they don’t fit in so well okay so how can we get those crew so that’s building that’s prescriptive performance-based colleges let’s say you come to somebody and say I want to build under your code but I want to build a geodesic dome with a glass roof and I want to build the foundation water the walls above grade out of straw bale and everything below grade out around Earth we’re gonna look at you go what you do with this so that that would be a performance-based performance meeting that you need to provide some information criteria some maybe engineering data to the building official to show that what you’re proposing meets an equivalency of what’s in the code that’s build X performance that’s a performance building in fact simply with energy code there’s like energy code is prescriptive meaning let’s see a free involved wall up two by six studs and this area is going to say you know it’ll say five and a half inches of fiberglass meet in our value of 20 okay but a performance called woods if your came to me with some new innovative insulation technology and I need to meet in our 20 I would need to it’s a building official we need to see something from you the gap gave me data that show that you can meet that are 20 maybe a came to me and said you know what I’m going to I’m going to grind up side and I’m going to put it in this wall cavity or maybe I’m ready to hold the wall out of side I would just say do you have something that can verify that that’s going to be an hour value of 20 lock homes same way you want to build a lot of hope and a lot of home meet the energy code absolutely does you know can you determine the r value on a log based on like our value per inch absolutely and can do that we’ll talk a little bit about that so prescriptive versus performance okay I want to just talk a little bit about the administrative authority that means like working with the building official but sometimes it may be challenging and you know kind of keep in mind that the build official or building official or build inspector when I used the term building official that usually means the person in charge the administrative authority a building Specter usually means personnel working for that person that actually does field inspections build inspectors plumbing inspectors mechanicals factors but the building fishel is the administrative authority and keep in mind that they also have a job to do their job is to make sure that a house built in their jurisdiction meets the building code and in my own experience most of them are pretty easy to get along with its it’s just that that’s not a hundred percent and the other thing about Bill inspectors is that not all building specters are up to date on all new technology if you came to some buildings vector and said I’m going to build a house with straw bale construction and they’ve never seen straw bale before their life what will be their first response we might just say you can’t build out here and you know until you’re able to if you’re the first one you’re going to have a little bit more of a challenge than if you build three or four five Izzy straw bales because the second one’s going to be easier and as bill inspector I’m going to say give me some data that shows that this straw bale will work we’ll talk a little bit but straw bale yes sir with you started with all building inspectors ok the question of frontal is what if you started with an outbuilding year and you buy a plot of land the first building you want to put on it as some outbuilding meaning some accessory structure maybe it’s a full building maybe it’s a storage building but you’re going to make it out of something a little bit different than there used to would that be might be easier to use the word test the instructor I like that test the instructor it might be if you use the same technology when you’re building the home you know it it might be easier if you start with a easier project absolutely sure so you got the building official they hire build inspectors they’re also going to do a plan review keep in mind that one of the best things you can do when building home is to give the building official the best set of plans you can in the best set of specifications you can because I’ll tell us in a past life time when I was Bill inspector people would what walk in and say I want to build a new house and here’s my plans and I swear it looked like they did it during their lunch hour on paper napkins and you go you know I don’t even know what you’re building here is this a house or whatever you know then the crown detect creates is if you have very little detail on it and you say you actually get a building permit or maybe you don’t even get through the process is that when you go to build it and you

pull out those paper napkins and you say well here’s what I wanted you and now you’re building something that’s really not on the plan not enough detail it’s going to just slow that process down and you don’t want to be slowing your process down because we’re going to get this house built you want to get it enclosed and weather tight and all that so the more detail the veteran sometimes it sounds like a lot of work you go why should I put this signing on yeah what kind of siding what brand what you know what model of siding can you give some siding specs to them or I have some new innovative metal roof system contact the manufacture the metal group and say give me all the specs you have I’m going to make it part of the middle documents so what if you’re some little documents we you know end up being about 100 pages the more you can give up front or the better it’s going to the easier it’s going to make it okay often the materials from kind of talking about that you you have something that’s a little different whether it’s your straw bale rammed earth Adobe maybe you’re building in verse chef anybody ever build an Earthship I’m an Earthship is I saw my first Earthship an Albuquerque a few months back where you basically build a house out of whatever you have and I’m not kidding this gentleman built the house out of the foundation was out of 3500 car tires laid flat overlapped packed with clay some steel rats pounded in three sides south side facing toward the Sun and a metal roof system and inside was all just clay and adobe and and it was beautiful home and I actually had a chance go through with a couple of the local state inspectors who were just kind of show me around a little bit and I said so how do you approve something like that and he goes you know we’ve seen a few of them and the idea of car tire seems a little absurd to a lot of people but if you’ve seen a few when you see how they build it and you realize that it works it’s time tested and it’s good use of tired tired versus whatever else we do with them why not and in this girl turn this house it was great it was a first show and the interesting thing was I I asked the last the guy as I said I asked the guy that was building it piece he was so low-key sewed on earth i said i’m just going to cure smile have you been working on this he goes he says well about 15 years so i asked to build inspectors i said how long your permits normally good for he said six months janessa so what do you do on this we said you know we just thrown open the file every six months and say Joe Blow is still working on it da da da and he goes he says we haven’t even charge for an extension of the firm this guy was just working out and as we drove through this it was up in the hills and help repeat right and there were other piles of car tires around so we try to find it’s a new house and he goes you got it that’s alternative materials you know the more information you can the building officials can get and the more experience I have with them it’s going to be easier you know it’s probably like the first time they ever saw an engineer tracert or a would I chose open web trust engineered studs finger joint it’s dyed you go thank your Chinese studs what tech are these that’s what they take not so good wood and they cut up and I’ll cut out all the knots and then they make finger joints gloom together and and I test them and then they’re great stamp just like a regular stud better use of previously waste material so it’s it’s kind of convincing them it’s kind of like find a new car that you have a model car that you’ve never had before you kind of you know got to get worked into it and and have some background have somebody give you some information okay so if there’s you so you need to supply whatever data that the building official needs the more you supply the better okay and also if you’re anybody ever build a lead home in here leadership Energy and Environmental Design okay the lead homes actually had we’ll have another person involved called a green Raider that will be like a third-party inspector and they probably want to be involved with the processed plan review also actually they will be involved okay i want to show you an example the quick use of alternative materials if you were going to put if you’re going to build just a wood-frame house you frame it up got your she leaned on what’s the next thing you put on it anyway building I’m just a tie-back type are you’re going to put on building paper what if you were going to build it 40 years ago what might have you put on it tar paper felt paper absolutely so how did we transition to a lot of house wraps that you think about those those are engineered products well if I’m a build official you come to me with type fire tiebacks I could pretty much say yeah you can install it i’ve seen it installed a million times and I’ve already read the specs on it and with some products you might come to me i would say i’ve never heard of it before once again you’re going to need some data give an example and I’m just going to use house sheet of paper as an example and this can apply to a lot of different

assemblies on a house whether its foundations are roughing okay so let’s say I decide that I want to build a free house bring out of something okay the building code is going to tell me I need to have some type of felt paper on it seemed to tell me number 15 which is actually called type on felled number 15 used to be called 15-pound meaning 15 pounds per 100 square feet they’ve renamed it about 20 years ago to number 15 because it actually averages about seven to nine pounds per hundred square feet so they used to say number but it’s not as heavy as it used to be so that’s the standard it’s a standard in the industry for a long time and this standard comes in different grades depending on what you’re doing if you’re using regular siding you can put any of the four grades on if you’re using stucco or adhered veneer plastered rock some kind of a stone on it actually need to have a breathable or permeable paper on it which is a great deed paper how many people use put on likes tacos or half an ounce tacos and stuff have you run into this with the permeable favorite thing i don’t use any the wall to breathe so I don’t okay okay okay you know the issue about reasonable walls is you know in the building code right now it seems like over the last well since we had the big energy crisis how many people remember the oil embargo 73 I think most of us were at least alive in 73 okay and what happened the price of oil shot up what else happened in many states they started adopting energy codes in 73 what else happened in 73 all of a sudden we go from two by four wood frame with three nap inches of Fire Blast two she that phones and all kinds of other things and but since that time we’ve gotten houses over more energy efficient or sealed off more penetrating Oh sealed penetrations but in it if not properly constructed we’ve also run into issues with moisture trapped in walls and so there’s it’s not only building tight foot building right so there’s certain ways that you need to build that and one of the issues certainly is vapor transmission through walls and the issues with what kind of vapor retarder should we have or vapor barriers actually the one the walls technically is vapor retarders the poly we normally put on the inside but you also want to have one that has some ability to let moisture through it in here conditioning seasons so it’s kind of a trick it’s like how you have a vapor retarder on warm side in the winter and have it more breathable in the summer or in warm humid climates that’s challenging yes sir provisions to do this using latex paint on the inside wall absolutely you can use a latex paint as a vapor retarder affect them the latest addition to the international residential code says vapor retarder from writing left nine xdd 1.0 but it also has it now allows you to use it now specifically says you can use the faced by your glass like we used to you don’t have to have poly running all the way across but you can also specifically use paint it’ll say latex paint three metals thick so can measure three mils by the way all right you know what’s three mills is the thickness of a dollar bill so and as you’re building these houses you see a lot of those just go right so yeah you can use latex paint in fact i was going to build a new house today i put it it’s just my stick my opinion not working for anybody in particular but i put as little vapor retarder on the inside as I could don’t quote a coconut yes sir their options to use a insulated wall material that absorbs moisture purpose minute echo echo scopic so that it then absorbs moisture in the high community season like we’re getting into now and then in the winter it really says it into a house as the house dries you’re absolutely right yeah you can kind of drives itself off that way sure you’ve been doing your research out that’s good out like this alright so normally i put a felt paper on the wall and it felt the building codes going to be specific tell me how to put it on other products bc foams and we see something mentioned tie back and we see this is a doubt product down here stuff other materials if you if you come to the building official and you want to use a rigid foam on the outside then bring the specs for the rigid foam to the building official because they’re going to need to know some things about the rigid foam itself and some of the properties of it permeability and how it’s supposed to be installed the more information you can provide the better

so let’s just do this weather resistant like here’s some tie back okay i’m going to put some tie back on the wall you need to bring some data to the building official third-party testing maybe manufacturers specs specifications i’m also going to show you one other one that if you’re building homes at all there’s a dicc that i work for they have this evaluation service which by the way is free and they got this website I CC dash es evaluation serviced at work they have about 22,000 evaluation reports on there and what they do is manufacturers like tire back and type are these the manufacturers of products will go to the ICC with their test data they see see evaluates it and they basically write this evaluation saying this I’ll use thi about dosage this this house see the paper is equivalent to great deed fell paper type 1 whatever when it’s dolled according to the manufacturer and they’ll give some specs on it so that way if I go on the building fish oh and I can go to this website I can put it right just type and tie back or type r or whatever kind of foam you have and see if they have a report there I’ll just tell you the most manufacturers have of how shitty papers anchoring systems anchor different types of anchor straps and all that you’ll see a lot of products out here the manufacturers go to them you can get there’s reports you print amount or free might be one page to page three pages long and then when you go to the building officials say hey I got this new angel system on my wall I don’t want to use half inch bolts at six foot on center I want to use this really unusual old strap that has this kind of an ailing system and they’re going to go I haven’t seen that before you can go here’s the ICC es report that will help you and you know it’s tough if that will help you you know if they have conditions of use its tell truth this is one of the cheapest easiest things that will help make your life easier if you’re building for yourself or building homes in general these reports and just look and it’s a good thing yes sir do they test my local materials like they could you place drywall they have any of those kind of builder good question if you didn’t here is question is does the es reports do they have our test reports evaluation reports on things that may be unique to the area like based on the soils in the area not related to soils but they have manufactured products the interesting thing about soils is it can vary across your neighborhood and it would be a little challenging to try to write that but I will bring up one thing when i was in albuquerque a no so a lot of people were building with rammed earth and i had heard about randers but i never saw what they basically do is take some formwork about 18 inches wide they climb into it and they have they throw this kind of heavy clay into it with a little mixture of Portland cement they mix it up they throw it in there and they got a machine tamper it’s not very big and they stand inside the and they just can’t back and forth and up and down and they build this wall out of the dirt that was 100 yards away from the site okay local variable that’s what as local as it gets and how do they approve something like that the state of New Mexico made what they did was a they got there in some engineering people together and they looked at the soils in the state and they said if it’s this type of soil and you compact it to this one of pressure it needs to be at least 18 inches wide and it can go so high so the state of New Mexico had so much of that they wrote a state amendment and inputs they put prescriptive criterion for rounder and so yes it can happen in which really makes it easier for the people out there building round earth now could that be possible with other things whether it’s straw bale or other things out here it could happen but usually to get amendments moving you need a little bit of a group of people that are interested in those those types of products to you know try to work with state administrative people proposed eight amendments I know that happens in Minnesota to pee so but it’s absolutely possible yes Noel states are the same how does response in fair well how progressive army well since I’m a Minnesota resident you know Minnesota I’m sorry Wisconsin still has their own building code their own local code but I think they’re moving toward the national co is the international codes I you know I can’t speak for how they put them together and stuff I I know how Minnesota does it but it’s not like being separated by a river can be that therefore I just like if there’s there’s enough demand for something that that the state would almost encourage you to

try to get these kind of things into the cove now this as Minnesota Creek pretty willing to listen to proposals for amendments sure I I don’t have no experience with Wisconsin to know that sorry yes sir in Wisconsin Lee here’s a building code review board meets regularly but it’s all totally made up of building material manufacturers and a you know big contractors and stuff sure so too like the home builder the local guys aren’t represented in that at all so it’s a little hard to work I think you need to find a way to get your foot in the door I don’t know how that is but I knowing in in Minnesota they actually have similar boards but they actually have a certain criteria where they said there’s gonna be three licensed general contractor three buildings factors three manufacturers wraps you know so they get a really good miss I mean that’s the only way either that’s to me that’s the only way you should really be doing it you need a everybody’s input so yes sir um I’m cures like we have some land up in Bayfield County dude by Portland and we’re thinking about building this year but that Bo Kony has smart growth these kind of different things and so I mean a lot of this stuff must vary from County to call me true or not yeah the question from the gentleman type a field which by the way is one of my favorite places in the world is that in that area they don’t it sounds like they’re provisions maybe not maybe they haven’t even adopted a building code stuff but one of his comments was that do these kind of things vary from every through October parts of the country absolutely they vary from city to city you can go into mental Minnesota and go from one city to another and I want provision get a different opinion and sometimes that’s because of the building inspectors experience with it and you know a lot of times we come in with a new product and you just used it in a neighboring city now you’re going to start in this city just mention it to the building official in fact what I’d recommend is if you had a new product write down the name of the jurisdiction city or county that you used it in what build inspector proved it and keep a running list and next time you go to new city oh yeah we use that in so and so and if you want more information call joblo in the city of a pen or something and that way they can communicate with each other on those kind of things and you know they can also learn from each other and it’s more likely that you know you’ll get the kind of products approved all right I’m gonna move on so we you know so this is a report like in the house cheating they’re gonna they’re going to evaluate certain parts of that made for transmission air barrier in and check it to a standard give them a report and that’s going to happen with a lot of products and this is just kind of what these products these evaluation reports look like they have a ton of information you know the best parts it’s like free the greenest part is you don’t even have to printed you can read it right on the screen no they’re very short but if you’re doing exterior plaster stucco you’re always using a great d paper by the way ceiling with its favorite permeable ok what if you’re using some other kind of a system you’re you know you want to have a breathable something behind it you little air space behind your exterior cladding this up bring as much information till the building official as possible some what your plans are doing ok let’s talk about some particular kind of things we’ll chat a few a few seconds about each and all we’ll talk about the issues with them so these are not or may not be typically in the building code vegetative green roughs you know when you’re putting on a greener off you say you’re going to go to some build inspector some departments a on put on a green roof on a facade or I want to have trees growing shrubbery and all that they’re going to have some issues with that because especially if they haven’t seen it before so the best thing to do is to look at those kind of things that are the issues if you’re going to put a vegetated roof on first off I want to know it but it’s going to wait I want to know that the structurally it’s going to handle it okay let’s get past the first hurdle what is it a fine you know determine what that is actually going to wait for square foot this load and then figure out some live load for snow because I know I heard in this part of the country its nose and we have some so es of snow issues so you may depend on what kind of a system you’re building maybe it’s an open web floor troughs or whatever for your roof get some specs from a manufacturer through engineered systems it’ll be a lot easier you’re going to stick frame it you’re going to probably need to have a lot more data when I say stick framing and solid sawn lumber something other than engineer trusses so structural integrity what else on a roof is pretty typical it reads it snows we want to make sure it drains we don’t want to have that water sitting up there so give a lot of details about to drain it do you have drainage membranes mats Jeff’s covers how are you going to drain this what are the weather kind of things those are

really the key things and you know for some situations that actually in some areas of the country fire code is actually an issue but you’ll probably run into that more with commercial structures with green rose okay straw bale okay you’re going to come to somebody with straw bale you know most straw bale homes the walls are straw bale by typically their post and beam construction in other words you have framing in between that will serve as your structural system but you’ve also have provisions in the cold for wall racing in other words if you put a building up whether it’s a tent or whatever and you’re on a high wind it’s going to have a tendency to move a little bit so if you have a straw bale and you don’t have a she that wall or let embracing how are you going to provide what are you going to do to it that will provide that lateral racing in most cases the straw bale with the mesh and the cement coat on it or whatever kind of coat you’re going to put on it is going to probably provide that bracing anyways what other issues might you have a straw bale how about the weather resistive exterior provides some details to the building official if the straw bales are non varying it’s going to be a lot easier if you intend to build some kind of a wall system whether it’s straw bale or something similar or cob or whatever that’s going to be a bearing system you’re going to probably have to show a lot or detail if it’s a bearing system its carrying the load of the wall above that’s a varying system so show them how you’re going to comply with that structural is a big issue weather resistance big water-resistant solar panels put solar panels on your house what might be some of the issues let’s see you got exist weight of the panel’s how much do these panels wait these panels here weigh less than 5 pounds of square foot and you and this actually it’s my house but in this situation my RO system was already designed for 40 pounds per square foot live load and they in in the part of the city that I live in the designated live load is 35 pounds I already had a five pound gap there not a gap but five pounds of play with the building official approved this because they were less than 5 pounds oh I still underneath the 40 live load that the trusses were designed for what are the kind of loads up look the building official want to know how is going to brace it from wind uplift in this part of the country would probably have even Wisconsin it’s probably 90 mile per hour wind load so are you getting to tie downs how will you be bolting it we have locking in between the trusses those are the kind of things they’re going to want to look for the Installer of these panels actually brought some engineering data kind of standard engineering data for a wood frame ropes from them from the manufacturer of the products and they that was supplied to the building official and actually that worked for structural the other thing they’re going to look at is flashing how are you going to keep though you’re going to drill some holes on those shingles how are you going to flash them so he brought along flashing details back to flashing details on this it was just so simple I can’t believe how easy and how smooth it went so that other information and then the other only other thing was orientation on site this real face is like within a half a degree at death south it’s actually perfect so that worked well and then electrical that went through in minnesota state electrical inspector and then there was you know it’s kind of like what kind of wire how you gonna run it is alternating current direct friend so the more we might the easier and the the gentleman that instant that submitted the contractor that install these for me I don’t think we waited more like two days to get the permit for the solar that actually went pretty smooth but he got a stack of data and later the building official actually instead of the building spectra coming out for the inspection the building official achieved came out he said you know what I’ve never inspected solar panels in my life I want to see what they look like I want to see what I should be looking for and he climbed up on the roof with me said let’s go check this out he said I really like this idea so he was learning by doing the inspections and I share as much information as possible so you know that the next time somebody comes with a permit application for solar his jobs going to be a little bit easier so I like to provide building officials with as much as possible what else composite plastic decades I was going to build a deck right now and I didn’t want to use wood what might else I use composite plastic something with fifty percent are more plastic can you tell me a branding of a composite place edge in others I looked at some research that was done there’s over a hundred manufacturers of composite plastics in this area in this five state area right now 100 manufacturers and in the building code

the international residential code Ashley now reference a standard it’s American Society testing material standard for composite plastic that checks everything from structural expansion contraction flame spread durability resistance to ultraviolet rays of the Sun and it’s a really good standard and if a manufacturer has heathers tested and passed the standard you can have some assurance right off the bat that the product should last okay but in the building code for the longest time they never referenced up until about three years ago they never referenced composite plastic you know and that’s that happens with a lot of new technology the more you see of it that eventually gets into the building code itself so usually the composite plastics my best advice is ask a manufacturer if they tested it to this standard and if they passed the test one thing to tell you know it’s like taking the test but not quite fast okay um advanced framing the fans frame he just means we’re going to build a house maybe a wood frame structure we’re going to use less wood in it maybe we’re going to put studs a two-photon center instead of 16 can we do that the skin the code sure we could do it actually up to two stories and a rope in the code we do three stories and rope the bottom floor needs be either 16 on center or two by six framing in line but advance for any means were lining up if we go to foot on center we’re lining up the studs with the rafters above maybe we’re going to single top plates which the building code allows maybe we’re going to engineered products open what trusses would I choice Mike relay on headers and stuff so you know in fact I see a lot of builders that are still building green homes sustainable lead homes are still sticking with the double top places say the single top plates actually complicates things finish heights and so they’ve been avoiding that what but I see a lot of things where they’re actually trying to use less lumber does that create problems with the wall itself probably not you still need to brace the wall you know she’ll it or if you’re going to go with foam some kind of a lead and bracing metal bracing something to resist the wind loading so optimum value engineering is just using less would still meeting the building code yes sir on that we loading here they start to get it into the more about the region that hurricane some bottom we probably won’t see hurricane straps uh but I think what you’re referring to is from the top down let’s say you build a one-story Rambler style home you got hurricane clips from the trusses to the plate and then straps connecting the rafters to the wall not just the plate and then down at the rim area and then down to the foundation I don’t think we’re going to see that in this area in the country only because right now it’s pretty much 90 mile per hour wind and you can do that with nailing when you start reaching about 135 or getting out on the Atlantic coast down to Florida with 155 you’re going to have straps all the way down if I were to build a house from scratch today I’d have straps all the way down you know what it’s pretty cheap insurance I would certainly do that on the vapor drive on those dresses they’re metal there’s some condensation issues there you know I just haven’t seen that because of the amount and the fact is they’re buried between gypsum and in wood or wood and they’re studs and she leaned I just haven’t seen it where I have seen issues with condensation is people that have decided to go to metal studs to save wood and drawing the moisture through but if you’re going to metal studs then you’re going to need continuous shooting on the outside that for the thermal break and metal studs really are kind of a I’ll put it this way you need to do a lot more to prevent moisture issues and condensation issues within a wall plus the carbon trail on metal studs is about 25 times as much as carbon trail on wood framing and by the way we’re planting more trees in North America right now that were cut down okay you can use you could use factory assembled with panels okay full plastics couple quick things if you can use fan poll plastic whether it’s rigid spray applied closed sale open cell all the specs are differing my best advice get manufacturer’s specifications from this because they talk about a lot of things proven permeability our value density you know the compression on it vapor transmission and thermal barrier to build a home wall you’re going to need a 15 minute thermal barrier around the house you’re going to need 15 minutes separation between the phone and the interior environment no matter what kind of phone you’re using there’s only one exception that I know and that’s actually for a home shooting called Dowell thermax but that’s another another story okay what what would what would you use a half inch sheet rock would be a 15-minute thermal barrier and I got one minute and or something like that um also three-quarter-inch plywood is a 15-minute thermal barrier what sounds silly but it is so something to separate from the interior okay followed

organic compounds llovio see paints are going to be in a lot of green building programs a lot of manufacturers are listing these now you’re using bio-based material engineering onyx engineered stubs get the specs from the manufacturer vapery Tartars work all kind of used to poly but there’s a lot of different vapor retires out there now gentlemen out here mentioned can we use paint absolutely certain you can use paints you can use Polly’s you can use there’s other products you use the interior phone shooting would also work as a vapor retarder air barriers you want to seal up the interior so you don’t have moisture movement into the exterior tesco tell you into the wall just go tell you how to do that that really it just says seal them up what kind of material are going to use tape rock let’s just put a note on the plan how you’re going to do that indigenous materials just means you’re using materials you purchase within or they were manufactured within 500 miles maybe it’s the dirt from the ground maybe his log homes log structures I want to mention one thing about log structures if you’re building log homes there’s a new ICC standard for log homes that might make your job a lot easier that’s called ICC 400 talks about everything related to the logs themselves even energy-related if you’re going to want to proof your foundations building codes is not really specific about types of waterproofing but there’s a lot out there bring those kind of things to the building fish let’s say I’m going to use this gray stuff we’re going to spray it on so thick can you prove this it’s an alternative material there’s a rounder I mention that earlier can we use reuse materials there’s some limits on what you can reuse you can actually reuse free me you could be you as a whole house okay earthship this is actually this is the one with the car tires i mentioned earlier energy pretty cold basically more energy savings and if you have different kinds of materials you want to do that with whether it’s some kind of foam or something bring that to the building official to talk about performance this is the Dolby I don’t think we see much adobe in the cities the Forest Stewardship Council actually is a chain of custody certification for to certify that your lumber was from a site that used sustainable manageable building or growing practices good growing practices for lumber summary if you’re gonna propose something that’s not the code as much data as possible for the building official make your job easier a lot easier test data and in trying to try to install it according to the way it was proposed in the semental documents then if you have something that you’re going to some information that you file it up after you got the permit give it to the building official if you’re going to make changes contact the building official before you do it and questions or comments I get about 10 seconds I guess if your questions down the road send me an email and there’s some evaluations out there if you can fill them out leave them they wouldn’t really appreciate that I have some information some contact information feel free to tape that thank you very much for hanging around hope you you