【屋根の罠】片流れ屋根は雨漏りリスク2倍？　プロが教える屋根断熱時の「隅棟換気」の重要性と克服方法。危ない３つの屋根の形【後編】

For those planning to build a new home, especially those struggling with the choice between a "single-slope roof" or a "hip roof": Choosing a roof based solely on design might lead to regrets later on due to leaks and condensation. In this video, a housing durability expert provides a clear explanation of essential knowledge and countermeasures for extending the lifespan of your home, from a real-world perspective. Welcome to the "Housing Durability Q&A Room"! In the first part, we revealed the worst roof types: #1 "flat roof (cube-shaped)" and #2 "single-slope roof." In this second part, we'll continue our explanation of the specific weaknesses of the #2 "single-slope roof" (wind pressure issues on the upstream side), and finally reveal the third-ranked roof type: the "hip roof" when it comes to roof insulation! "Single-slope roofs have twice the risk of leaks compared to gable roofs." "Hip roofs with insulated roofs have a high risk of condensation at the hip ridges if ventilation is insufficient." President Kobe will explain the structural problems behind these seemingly unbelievable risks and the latest ventilation measures to overcome them, illustrating them in detail on a whiteboard. In addition to simply stating the risks, he will also explain the ingenuity needed to cover the weaknesses of each type of roof. Please use this as a reference when choosing your roof. [Table of Contents/Chapters] 0:00 Summary of the previous episode: What are the weaknesses of the second-ranked "single-slope roof"? 0:34 Overcoming the weaknesses of single-slope roofs! The dilemma of "installing ventilation ridges" and "eaves overhang" 1:45 Ingenuity in residential developments: Roof placement considering the surrounding environment (prevailing winds) 3:30 Blind spot! Single-slope roofs have twice the "risk of leaks and rainfall" compared to gable roofs. 4:12 Announcing the 3 Worst: Hip roofs and pyramidal roofs have excellent waterproofing. 5:00 Pitfalls of roof insulation! Condensation and ventilation problems lurking in the "hip ridge". 6:14 The importance of hip ridge ventilation: Even roofers aren't aware of it!? 8:00 Summary: Don't choose based on design alone! The "Roof Shape" that Determines Durability --------------------------------------------------------------------------------------------------------------------------------------- [Housing Envelope Meister Certification System] https://sumaikanki.jp/meister/ --------------------------------------------------------------------------------------------------------------------------------------- [Encyclopedia of Housing Durability I] https://amzn.asia/d/94eeAPi [Encyclopedia of Housing Durability II] https://amzn.asia/d/8gHV0QE ---------------------------------------------------------------------------------------------------------------------------------------- Previous Video: [Beware of Leaks and Condensation] Three Dangerous Roof Shapes Pointed Out by Professionals (But There Are Solutions!) What are the Weaknesses of the Popular Cube-Shaped and Single-Slope Roofs? [Part 1]    • 【雨漏り・結露注意】プロが指摘する「危ない３つの屋根の形」（でも、対策はありますよ！...   ---------------------------------------------------------------------------------------------------------------------------------------- [Contact Information] Hauseco Co., Ltd. NK Building 6F, 2-10-28 Minamisenba, Chuo-ku, Osaka City, Osaka 542-0081 Tel. 06-4963-8266 https://hauseco.jp/ FM TANABE Co., Ltd. https://www.fm885.jp/ ----------------------------------------------------------------------------------------------------------------------------------------- #Single-slope roof #Hip roof #Rain leak prevention #Condensation #Choosing a roof #My home planning #Custom-built homes #Consultation on all things housing durability