This article is only available to GBA Prime Members Start Free Trial Already a member? Log in Open-cell spray foam has an R-value of about R-3.7 per inch, while closed-cell spray foam has an R-value that may be as high as R-6.5 per inch. If you want to install spray foam in a stud wall, and price is no object, then it would seem to make sense to specify closed-cell spray foam, right?Not necessarily. Dense spray foam is installed differently Builders and homeowners are often surprised to learn that there isn’t much difference in whole-wall R-value between a stud wall insulated with open-cell spray foam and closed-cell spray foam.To understand why, we need to start by discussing the “trimmability” of cured spray foam.Closed-cell spray foam is so dense that it is difficult to trim. That’s why installers of closed-cell spray foam never fill a framing cavity completely. In a 2×4 wall, the installer will usually stop at a maximum depth of about 3 inches instead of 3.5 inches, leaving the typical bumpy surface of cured foam. This type of installation doesn’t need to be trimmed.Open-cell spray foam isn’t as dense, so it’s easy to trim. Installers of open-cell spray foam will fill a 3.5-inch-deep cavity completely, allowing the foam to expand until it is proud of the studs. Once cured, the soft foam is easily trimmed flush with the studs (see illustration below).With open-cell spray foam, the sides of the studs (above) are not as exposed as they are in a wall insulated with closed-cell spray foam (below), and this fact reduces the thermal bridging penalty.With closed-cell spray foam, the exposed sides of the studs (the portions that extend inwards beyond the 3 inches of foam) make the thermal bridging penalty worse. Whole-wall R-values To calculate the whole-wall R-value of a wall, we… Sign up for a free trial and get instant access to this article as well as GBA’s complete library of premium articles and construction details.
A baby girl weighing just 520 gm has become the tiniest in South Asia to survive a major abdominal surgery. The girl, born premature at 26 weeks of pregnancy, was operated upon as 12-day-old in Udaipur following progressive distension of her abdomen because of which she was unable to get the milk feed. The surgery entails a very high mortality ranging between 60% and 80% and the chances of survival were less than 10% in the Udaipur case.The baby, Jhanvi, was born in February this year to Umesh and Madanlal Arya, hailing from Madhya Pradesh’s Shivpuri district. She was conceived after 29 years of marriage by in-vitro fertilisation (IVF) technique. Paediatric surgeon Praveen Jhanwar and his team carried out the emergency abdominal surgery under general anaesthesia which lasted one-and-a-half hours. The post-operative course was like a rollercoaster. There were several hurdles, infections and blood transfusions along the way and regular screening of heart and brain was performed to rule out any bleeding in brain.Dr. Janged said Jhanvi’s weight was now close to 2,110 gm and that her progress and clinical course in the neonatal intensive care unit was satisfactory.
Odisha continues to remain in poll mode even though a month has passed since the Assembly and Lok Sabha elections were held in the State simultaneously in four phases in April.Elections were to be held for two Assembly seats — Patkura and Bijepur — and four Rajya Sabha berths in the State. Four Biju Janata Dal members of the Upper House of Parliament have contested and won the recent Assembly and Lok Sabha elections.The Patkura Assembly constituency was first scheduled to go to the polls on April 29. However, polling was adjourned following the death of BJD nominee Bed Prakash Agarwalla on April 20. Mr. Agarwalla’s wife Savitri Agarwalla filed the nomination as a BJD candidate when polling date was scheduled for May 19.Polling in Patkura was deferred again due to Cyclone Fani that devastated many coastal districts on May 3. The Election Commission of India is likely to announce the date of polling for the constituency shortly.On the other hand, the Bijepur Assembly seat in western Odisha has already been vacated by Chief Minister and BJD president Naveen Patnaik. The bypoll will be held in Bijepur within six months after the ECI announces the schedule. Mr. Patnaik had won from two Assembly segments — Bijepur and Hinjili — in south Odisha.The Bijepur seat will witness a triangular contest involving the three major parties — the BJD, the BJP and the Congress. A triangular contest is also likely in the Patkura seat.Lobbying for seatsMeanwhile, lobbying has started in the BJD for the Rajya Sabha seats that were to fall vacant before completion of the term. While Rajya Sabha members Anubhav Mohanty and Achyuta Samanta have got elected from Kendrapara and Kandhamal Lok Sabha seats, two other members of the Upper House — Pratap Keshari Deb and Soumya Ranjan Patnaik — have got elected to the State Assembly from Aul and Khandapada seats.While the BJD, with 112 legislators in the 147-member Assembly, is certain to bag three of the four seats easily, election to the fourth seat will be crucial since the BJP, which has become the main Opposition party, does not have the required numbers to win a single seat comfortably. The BJP has won 23 seats in the Assembly and Congress has nine.
FREDERICTON – When Willie O’Ree donned a Boston Bruins jersey and jumped onto the ice at the Montreal Forum on Jan. 18, 1958, he had no idea he was making history.Just a decade after Jackie Robinson broke the colour barrier in baseball, O’Ree had become the first black player in the National Hockey League.Sixty years later, O’Ree looks back fondly on that game and a career in hockey that continues to this day.“I didn’t even know I broke the colour barrier until I read it in the newspaper the next day,” O’Ree said while sitting in the stands of Willie O’Ree Place — a modern hockey arena, named in his honour, in his hometown of Fredericton, N.B.“It was a nice feeling. I just happened to be playing and just happened to be black,” he said.While O’Ree didn’t score during that game, his Bruins beat the Canadiens 3-0. He would play just one more game with the Bruins that season.O’Ree would return to the Bruins for the 1960-61 season, playing a total of 45 games in the NHL — scoring four goals and 10 assists — all while keeping a secret that would have kept him out of the league. He was blind in one eye.O’Ree left Fredericton at the age of 17 to play junior hockey with the Quebec Frontenacs, and the next year he moved to Kitchener, Ont. It was during that second year in junior that he had an unfortunate accident.“Back then, none of the players wore any helmets, no face shields, no cages, so there was no protection on your face. There was a slapshot, and I’m on the ice in front of the net. A ricochet came up and the puck struck me in the eye. I lost 97 per cent vision in my right eye. I was out of action for about six weeks,” he said.Doctors told him he would never play again. But O’Ree never told his coaches or even his parents about the extent of his injury and he resumed playing.The next season he was called by coach Punch Imlach to go to the Quebec Aces training camp in Quebec City.“I went up and made the team but I didn’t disclose that I couldn’t see out of my right eye. I said if I’m good enough to make the team with one eye, just don’t tell them,” he said.The team won the championship that year, and for the next two seasons O’Ree tried out at the Boston Bruins training camp, finally getting the call to play in the NHL in January 1958.“I was just thinking about the hockey game, because first of all I had played against the Montreal Canadiens in a few exhibition games and then I played against the Montreal Junior Canadiens in the Forum. I played against the Montreal Royals, the professional team, in the Forum. So when I stepped on the ice on Jan. 18, 1958, I was just Willie O’Ree with a Bruins jersey on.”O’Ree said he knew people were pointing at him during that first game, and he was nervous, but once he got into the action, he just concentrated on the game.He said colour was an issue when he played in junior and he would often be subjected to racial slurs and remarks, but he had learned from his older brother to ignore them and just go out and play hockey.“He said ‘Willie, just forget about these racial remarks because you can’t change the colour of your skin and you wouldn’t want to even if you could’.”O’Ree said players on other teams would often make racial comments, but everyone in the Boston Bruins organization was very supportive, especially coach Milt Schmidt and general manager Lynn Patrick.His number 22 was never retired, and a few players have worn it, including Anson Carter, a Barbadian-Canadian who played four years for Boston and asked to wear it.O’Ree said that made him feel good, and he gets a lot of satisfaction seeing players like P.K. Subban of the Nashville Predators in the league today.Subban said he has O’Ree to thank for opening the door.“Everybody knows he was the first black hockey player and what he stands for, and not only that but as one of the great human beings to come to the NHL in league history,” Subban said following a recent game-day practice in Nashville.While growing up, O’Ree says his hockey role models were Gordie Howe and Rocket Richard. Now with 31 teams in the league, his pick is Sidney Crosby.“He plays the game, plays it hard, and loves the game. He shows it when he’s on the ice,” O’Ree said.O’Ree was traded by the Boston Bruins and played in other leagues for teams in Ottawa, Los Angeles and San Diego — where he continues to live.Now, at the age of 82, O’Ree serves as the NHL’s diversity ambassador, and for the last 20 years he has been going to schools and elsewhere to speak to young people as part of the Hockey is for Everyone initiative.O’Ree said he tells young people to feel good about themselves and have the kind of positive attitude that allowed a young man from Fredericton to play the game he loved.“They can do anything they set their mind to do. If you think you can, you can,” he said.
OTTAWA — A yearbook photo of Liberal Leader Justin Trudeau wearing “brownface” makeup at a costume party in 2001 has landed on the federal election campaign.Time magazine has posted the photo, which it says was published in the yearbook from the West Point Grey Academy, a private school in Vancouver, B.C., where Trudeau worked as a teacher before entering politics.The report describes the occasion as an “Arabian Nights”-themed gala event. The photo depicts Trudeau wearing a turban and robe, with dark makeup on his hands, face and neck.Officials cited in the report have confirmed the photo is of Trudeau, who was expected to speak to reporters about the photo later tonight.More ComingThe Canadian Press