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Frugal Happy: Giant Foam Box, Part 2

first_imgHow to Build an Insulated Cathedral CeilingAll About Attic VentingSite-Built Ventilation Baffles for RoofsFlash-and-Batt Insulation Three Code-Approved Tricks for Reducing Insulation ThicknessGBA Encyclopedia: Vented or Unvented Attic?Open-Cell Spray Foam and Damp Roof SheathingHow to Insulate a Cathedral Ceiling with Mineral Wool GBA Details: Vented cathedral ceiling GBA Details: Unvented cathedral ceiling GBA Details: Retrofit foam for existing cathedral ceiling Phase 2: FiberglassAfter the rigid foam, the next layer to go in was 6-inch-thick fiberglass batts (see Image #7 below). That’s the cotton candy-looking stuff. It may look soft and fluffy, but you don’t want to roll around in it because millions of teeny tiny spiky things will become embedded in your skin, and you will be thoroughly itchy.Thankfully these are kraft-faced batts, which means they are covered on one side by paper. This is designed to keep out moisture, but it also makes the batts easier (and less itchy) to handle and install.Chris installed the fiberglass batts by stapling the paper facing to the rafters. This isn’t a particularly labor-intensive process, but because the batts were so long and floppy, and Chris was trying to install these things by himself so high up, it was rather awkward.It also got challenging when he had to get into tight corners. Even so, the fiberglass batts went in much faster than the rigid foam. Phase 4: Furring strips and a service cavityJust as we did with the walls, we created a service cavity on the inside of the insulation for wiring before putting on the finished ceiling. To do this, Chris installed 2×3 furring strips. He used a laser level to ensure that the strips were perfectly level and co-planar (see Image #10 below). Chris can use the furring strips to anchor electrical junction boxes for lighting fixtures later on.At long last — the furring strips are in, and the insulation is complete! We are ready for wiring, lighting, and the finished ceiling surface (which will be wood paneling).It was long, it was laborious, it was sweaty… but it was worth it. The best thing about insulation is that if it’s done right, it only needs to be put in once. Once it’s in, it pretty much works forever (or at least for the rest of the building’s functional lifetime).With superinsulation installed, our house now needs less than half the air conditioning it used to, and an even smaller fraction of heating. If all homes had this level of insulation, imagine how much energy (and greenhouse gas emissions) could be saved. I’ve said it before and I’ll say it again: Insulation is unsexy, but it makes a difference! After spending months painstakingly insulating our walls, Chris turned his attention to insulating the vaulted ceiling.You may be wondering, “Is this guy a glutton for punishment?” Valid question.In many ways, insulating the ceiling was even harder than insulating the walls. The assembly is thicker and more complex. Chris had to install the insulation while standing atop a ladder, which made the job awkward and dangerous. Moreover, much of the insulation work took place during the hot summer months, when the air temperature at ceiling height often neared 100°F. It was laborious and slow-going. In the end, the process lasted more than four months.So yes, maybe Chris is a bit of a glutton for punishment. But for the end product of a foam-filled, air-sealed, attractive cathedral ceiling with an insulation value of R-46, there was no question in Chris’s mind he wanted to do it. The process helped create a comfortable home with steady indoor temperatures and low energy bills year-’round.Since we converted our flat ceiling to a vaulted ceiling, the ceiling and roof became one and the same. So our roof went from zero insulation to superinsulation. The two drawings at the bottom of this post show the roof assembly before and after the work (see Images #2 and #3 below). BLOGS BY WEN AND CHRIS Our House Becomes a Giant Foam BoxDemolitionA Car-Free ExperimentAn Introduction Phase 3: More rigid foamSimilar to what he did with our walls, Chris next installed yet another layer of rigid foam, this time 1 inch thick, continuously across the rafters rather than between them. Why more rigid foam? To reduce thermal bridging through the rafters.The foam sheets are not very heavy, but at 4 feet by 8 feet they are rather unwieldy for a single person to handle. Chris got creative with ways to hold up the large sheets while on a ladder (such as using another ladder).Two layers of rigid foam, filled with fluffy pink fiberglass. That’s right, it’s an insulation sandwich (see Image #8 below)! Fast forward a few weeks, and behold! The fully insulated ceiling: 10 inches of insulation (and months of Chris’ blood, sweat, and tears) hidden behind a dull gray facade.It looks nice and tidy in the end, but getting to this point was not. It’s all out of sight now, but we’ll always remember that it’s there. Once more, Chris meticulously air sealed the final layer of rigid foam with acoustical sealant (the white stuff) or canned spray foam (the orange stuff). Because, darn it, you can never air seal enough (see Image #9 below). The air sealing ensures that there are no air leaks in the ceiling of our giant foam box house.center_img That’s a big change! By the time Chris has completed the retrofit, our ceiling/roof will have 10 distinct layers and be 17 inches thick. Wowza. Let’s walk through the insulation phases one by one. RELATED ARTICLES Editor’s Note: This post is one of a series by Chris Stratton and Wen Lee, a husband-and-wife team living in the Los Angeles area who are turning their 1963 suburban house into an all-electric, zero-net energy home. They chronicle their attempts at a low-carbon, low-cost, and joyful lifestyle on their blog Frugal Happy. This post was written by Wen. Phase 1: Rigid foam and ventilationChris wanted to ensure that the finished ceiling/roof assembly was properly ventilated so that any moisture that gets into the assembly (e.g. from rain) is able to evaporate. He did this by constructing long ventilation baffles, or chutes, from rigid insulation. The chutes allow air to flow from soffit vents at the eaves to the ridge vent at the top of the roof. (For more information on this step, see “Site-Built Ventilation Baffles for Roofs.”)Often people install plastic vent baffles for this purpose, but since Chris was planning to insulate using polyisocyanurate rigid foam, he decided to use the foam itself to serve as the chutes (see this fun video from Fine Homebuilding). Two birds with one stone!Each panel of foam is pushed up against 2-inch-square “sticks” of foam glued into the upper corners of each rafter bay with Loctite PL 300 foamboard latex construction adhesive. This creates a 2-inch gap above the insulation for air to flow (see Image #4 below). As you probably guessed, what you see in the photo is just half a chute — when it’s complete it will extend all the way up to the ridge.For air to flow successfully through each chute, there needs to be a way for air to 1) enter, and 2) exit. In the photo, you can see that Chris created openings at the base of the rafters (where daylight is shining through along the top of the wall). Later, he installed plastic soffit vents.But where will the air exit? At the ridge, the highest point of the roof. Chris cut out openings along the ridge too (see Image #5 below). Then he climbed on top of the roof and installed a ridge vent, carefully covering it with ridge shingles (see Image #6 below). That way air from inside can flow outside, but when it rains, water will not leak into the house.Another benefit of ventilating the roof in this manner is that on very warm days, hot air (which rises) will flow out the top vents, drawing cooler air into the chutes from the bottom — a passive way of cooling the house down.Working by yourself can be exhausting and lonely (even when there are unlimited podcasts to listen to), not to mention s-l-o-w! One weekend, Chris organized a work party (a.k.a. bribed people with free pizza), and luckily, my brother Bin and our adventurous friends Merc and Dan showed up to help. With four people, they were able to install a whole bunch of chutes in one afternoon.As with the wall insulation, every piece of rigid foam had to be carefully measured and custom cut for each bay, and then gently pounded into place with a block of wood and a 4-pound mini-sledge. The pieces were snug enough to stay in place with friction alone, but Chris sealed the edges with acoustical sealant.Over the next few weeks, Chris continued to slowly but steadily install the foam on his own. As he progressed, he had to climb ever higher on the ladder. Handling an 8-foot-long piece of foam while balancing on top of a ladder (in sweltering heat) is no small feat, people.Of course, insulation doesn’t work at its best if there are leaky seams. So Chris made sure to air seal (with acoustical sealant and canned spray foam) along all the seams of the rigid foam, creating an insulation layer that is completely airtight.last_img read more

World Economic Forum opens “Industry 4.0” center in San Francisco’s Presidio

first_imgHow Connected Communities Can Bolster Your Busi… Can we call it “PresiDavos?” The World Economic Forum — best known for its annual who’s-who gathering of thinkers in Davos, Switzerland — opened its Center for the Fourth Industrial Revolution in San Francisco this morning, a new space for accelerating technology and science associated with the current data-driven tech revolution.The center will be a meeting place for politicians and city planners to chat with the individuals and companies working on the groundbreaking technologies that will have a huge impact on the workforce of the future.See Also: World’s largest new IoT networks launched at MWC“The 4th revolution is reshaping industries, challenging existing regulatory frameworks, and redefining what it means to be a human,” said Murat Sönmez, Member of the Managing Board and Head of the Center. “We need to urgently develop policy norms and frameworks and apply these innovations to ensure their benefits affect us all. This is the purpose of the Center and its work starts today.”Artificial intelligence, national digital policies, cross-border data flows, drones, autonomous vehicles and environmental technology will all be discussed at the center, alongside any new innovations that come out of Silicon Valley or another tech hub.Expect big names at openingSeveral big name CEOs will be involved in the center, including Salesforce CEO Marc Benioff, Alibaba co-founder Jack Ma, and Microsoft CEO Satya Nadella. Other tech executives from Germany, India, UK and Turkey were present at the opening on Friday.Aside from Benioff’s Salesforce, other inaugural tech industry partners include Kaiser Permanente, Microsoft, Palantir, SAP, Huawei, IDEO, Reliance Industries, and Turkcell “Technology companies cannot do their work in isolation—we must be aware of the effects our innovations have on societies and the environment as a whole,” said Marc Benioff, Chairman and Chief Executive Officer of Salesforce. “This global Center will allow us to much better understand the impact we have on society, and the positive role we can play.”The center could be a place for politicians and public figures to learn more about the technologies that are entering into the industry and consumer market. Most don’t know how close artificial intelligence or autonomous cars are to the mainstream, and the World Economic Forum could help crystalize the timelines, allowing streamlined and effective policy. The Ultimate Checklist on Ways to Prevent IoT D… Related Posts David Currycenter_img Tags:#4IR#automation#California#computers#Government#industry#San Francisco#technology#world economic forum How IoT Will Play an Important Role in Traffic … 5 Industries Destined for Technological Disruptionlast_img read more

2015 Pacific School Games Results

first_imgQueensland has won all four divisions at the 2015 Pacific Schools Games held in Adelaide last week. Congratulations to the winners across the four divisions: 12’s Girls1st – Queensland 2nd – New South Wales 3rd – Australian Capital Territory 12’s Boys1st – Queensland2nd – New South Wales3rd – Western Australia 15’s GirlsGrand Final – Queensland 3 defeated New South Wales 1Plate Final – South Australia 6 defeated Victoria 11st – Queensland 2nd – New South Wales3rd – Western Australia15’s Boys Grand Final – Queensland 9 defeated New South Wales 3Plate Final – Northern Territory 6 defeated South Australia 51st – Queensland 2nd – New South Wales3rd – Western AustraliaHead to the Touch Football Australia Facebook page to view the Pacific Schools Games photo album – www.facebook.com/touchfootballaustralia. For more information about the 2015 Pacific Schools Games, please click here. To watch some of the live stream footage from a selection of Friday’s games, please click here.Related LinksPacific School Gameslast_img read more

10 months agoChelsea warned Hudson-Odoi will become next Sancho

first_imgChelsea warned Hudson-Odoi will become next Sanchoby Freddie Taylor10 months agoSend to a friendShare the loveFormer Chelsea striker Tony Cascarino believes the club are risking Callum Hudson-Odoi becoming the next Jadon Sancho by allowing him to join Bundesliga giants Bayern Munich. Sancho has excelled since leaving Manchester City for Borussia Dortmund in the summer of 2017.And Cascarino believes Hudson-Odoi could make Chelsea regret selling him if he is given the opportunity to play at Bayern.He told The Times: “Bayern Munich’s interest in Callum Hudson-Odoi should tell Chelsea all they need to know.”The 18-year-old is clearly a special talent and they should be doing all they can to stop him joining one of the biggest clubs in Europe.”Transfer fees are obscene for teenagers but Chelsea should look farther down the line.”Just look at Jadon Sancho at Borussia Dortmund.”Manchester City let him leave and now he is starring for the Bundesliga leaders domestically and in the Champions League.”Chelsea must resist the temptation of selling Hudson-Odoi this month and try and persuade him to sign a new long-term contract – his value and ability is likely to only increase.”There aren’t many players who can skip past players and deliver such brilliant crosses as he did against Nottingham Forest on Saturday.”He set up Alvaro Morata for both goals and was comfortably the best player on the pitch.”Chelsea have had little success in establishing their academy players in the first team, which should make them even more determined to keep Hudson-Odoi.”They know how important it is to their fans to have a home-grown player star for the first team – just look at how the supporters adored John Terry.” TagsTransfersAbout the authorFreddie TaylorShare the loveHave your saylast_img read more

The 16 Most Powerful Fan Bases In College Football

first_imgCFB Fans geographically on a map.CFB Fans Twitter/@bryonhoulgraveTwitter/@bryonhoulgraveAfter the second-ever College Football Playoff was played out this past December-January, we now know who the most powerful college football team is in the country – Alabama. But what would the results be if it came down to fan bases?College football – the most popular amateur sport in our country – has hundreds of fan bases, and many of them are monstrous. There are really only a few dozen, however, that are unwavering in their support, win or lose. We’re here to highlight the top 16.We’ve taken into account program worth, program revenue, television contracts, social media followings, attendance and a number of other factors. Our list features teams from all five major conferences – along with one independent. You can guess which one.Without further ado, the 16 most powerful fan bases in college football.Get Started: No. 16 – Oregon >>>Pages: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17last_img read more

KR to Survey Class PortugalFlagged Ships

first_imgzoom Classification society Korean Register (KR) has been granted authorization by the Portugal Maritime Authority (DGRM) to deliver statutory services on behalf of the Portugal flag state. As informed, KR will act as a Recognized Organization (RO) conducting surveys and audits, issuing certificates to Portuguese flagged ships including those from Madeira, and ensuring full compliance with the SOLAS, MARPOL, ITC, ILL, and MLC regulations.“Successfully obtaining authorization to act as an ‘RO’ for the Portuguese administration clearly demonstrates our continuous efforts to increase customer service levels … across Europe,” Lee Jeong-Kie, Chairman and CEO of KR, commented.The latest authorization brings the total number of countries where KR is authorized to carry out ship survey and certification work to 78.KR currently classes an international fleet of 3,042 vessels totaling 69 million GT.last_img read more

Vancouvers first two licensed marijuana retailers open for business

first_imgVancouver’s first legal pot shops are open for business, more than two months after marijuana was legalized in Canada.City Cannabis Co.’s Fraser Street location and Evergreen Cannabis Society in Kitsilano have opened their doors.Both companies had to jump through extensive regulatory hoops, even as illegal retailers continue to operate across in the city.British Columbia has lagged behind other provinces in issuing non-medical cannabis retail licences, which must first be approved by the province, then referred to local governments or Indigenous communities for approval.The province says it has referred 232 application to local and Indigenous governments, but only six licences have been issued, including Evergreen and two City Cannabis locations in Vancouver.City Cannabis says it plans to open its Robson location soon.The Canadian Presslast_img read more

Loxo Oncology Dollar Tree and Schlumberger rise PGE sinks

first_imgNEW YORK — Stocks that moved substantially or traded heavily Monday:Loxo Oncology Inc., up $92.78 to $232.65Eli Lilly agreed to buy the cancer drug developer for about $8 billion.PG&E Corp., down $5.45 to $18.95Reuters reported that the California utility might file for bankruptcy as it faces big liabilities connected to deadly wildfires.Dollar Tree Inc., up $5.07 to $97.96Activist investment firm Starboard Value disclosed an investment in the discount retailerGeneral Electric Co., up 51 cents to $8.74Bloomberg News reported that private equity firm Apollo Global Management might try to buy GE’s aircraft leasing business.Intercontinental Exchange Inc., down $2.29 to $73.38A group of Wall Street firms is getting ready to launch a new, low-cost stock exchange.Schlumberger NV, up $1.08 to $40.17Energy company stocks gained as oil prices rose for the seventh day in the last eight.NuVasive Inc., down $4.60 to $45.45The spinal device maker said equipment sales were delayed in the fourth quarter and surgical procedures slowed.Lowe’s Cos., up $1.78 to $95.65Shares in retailers climbed Monday as U.S. service companies reported a strong increase in new orders in December.The Associated Presslast_img read more

Newmonts 10B offer would create worlds biggest gold miner

first_imgDENVER — Newmont Mining will buy Canada’s Goldcorp for $10 billion, creating the world’s biggest gold miner.The combined company could log gold production of 6 million to 7 million ounces over a decade and recognize $100 million in annual pre-tax savings.Miners are consolidating as gold becomes more expensive to procure. Barrick Gold said it would by Randgold for more than $6 billion just four months ago.Newmont will acquire each share of Goldcorp Inc. for 0.3280 of its own, plus another 2 cents per share. Shareholders of Newmont Mining Corp. will own 65 per cent of the combined business, with Goldcorp shareholders owning 35 per cent.The acquisition, expected to close in the second quarter, must still be approved by shareholders as well as regulators in Europe, Canada, South Korea and Mexico.The Associated Presslast_img read more

63 voting in sixth phase

first_imgNew Delhi: Sporadic violence in Bengal and allegations of malfunctioning electronic voting machines in Delhi marked the sixth round of the election, which took place for 59 seats across seven states. The overall turnout was 63.3 per cent.Elections were held in 14 seats in Uttar Pradesh, 10 seats in Haryana, eight constituencies each in Bihar, Madhya Pradesh and West Bengal, four in Jharkhand and seven seats in Delhi where votes were cast by a number of public figures, including President Ram Nath Kovind, Congress chief Rahul Gandhi, UPA chairperson Sonia Gandhi, Chief Minister Arvind Kejriwal and External Affairs Minister Sushma Swaraj. Also Read – India gets first tranche of Swiss account details under automatic exchange frameworkWith Sunday’s polling, votes have already been cast in nearly 89 per cent of the 543 constituencies, while the last phase of voting will take place on May 19 for the remaining 59 seats. The Election Commission (EC) announced 63.3 per cent turnout across the states and Delhi, with West Bengal recording over 80 per cent polling and the national capital registering just 60 per cent. Union ministers Radha Mohan Singh, Harsh Vardhan and Maneka Gandhi, Samajwadi Party chief Akhilesh Yadav and Congress leaders Digvijay Singh, Jyotiraditya Scindia and Sheila Dikshit as also celebrity contestants Gautam Gambhir, Vijender Singh, Dinesh Lal Yadav ‘Nirahua’, Ravi Kishan and Hans Raj Hans were among several prominent faces in the fray. Also Read – Trio win Nobel Medicine Prize for work on cells, oxygenDelhi saw a dip in its turnout from 65 per cent in 2014, despite a three-pronged contest between the BJP, Congress and AAP with several high profile candidates, while the EC also appeared despondent at the low polling figure even after its concerted efforts to draw the voters to polling booths. In the politically crucial state of Uttar Pradesh, 54 per cent polling was reported in 14 constituencies. SP president Akhilesh Yadav and Maneka Gandhi are in the fray in the state that sends 80 members to Lok Sabha. In Badohi, BJP MLA Dinanath Bhaskar and four others allegedly beat up a presiding officer in the Aurai assembly segment, accusing the official of deliberately slowing the polling process. In Azamgarh, Akhilesh is trying to retain his father and SP founder Mulayam Singh Yadav’s seat against Bhojpuri film star ‘Nirahua’ of the BJP In Bihar, around 59.38 per cent turnout was recorded for the eight Lok Sabha seats. In Sheohar Lok Sabha constituency, a polling officer was killed at a booth in a freak incident of firing by a home guard before polling started. Haryana recorded around 66.30 per cent turnout in 10 Lok Sabha seats and officials said no untoward incident was reported and polling remained peaceful in the state. In Jharkhand, an estimated 64.46 per cent turnout was recorded for four Lok Sabha seat and officials said no untoward incident was reported. Madhya Pradesh, which recorded 59.96 per cent turnout, saw several heavyweights contesting the polls. In Bhopal, Congress veteran Digvijay Singh was locked in a battle with BJP candidate and 2008 Malegaon blast accused Pragya Singh Thakur. Congress general secretary Jyotiraditya Scindia, who is seeking re-election from Guna seat, is locked in a battle with BJP’s K P Yadav. Former chief minister Shivraj Singh Chouhan and his family members exercised their franchise at their native village Jait.last_img read more