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    Breathable waterproof membra.
    - Waterproof breathable roof.
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So that construction can breathe

2014-5-7
Building energy consumption , durability , comfort, air tightness of the building envelope and its water tightness and vapor permeability are closely related , and breathable waterproof technology is controlled by the above factors to achieve energy savings , protecting the living environment improve building durability purposes.
Architecture is an organic biological life, to breathe , to think, supply references, excretion, clean , generate, perspiration, looking for warmth and try to communicate. High ordinary residential building energy consumption in the summer heat, winter cold , poor comfort . Our past few architectural considerations from energy efficiency , especially in the first decade or two , when we are one with the lowest cost to cover up the house , but never figured this house consumption of air conditioning or heating is very large, because heating poor condition , including our roofs, doors and windows , walls . Whatever form the facade or roof laying in the form adopted, it is difficult to ensure airtight building envelope . These problems in the construction of yin and yang angle lap around windows and doors is more significant . Through these non- closed pores , air and moisture to invade envelope , and thus the energy consumption of buildings , durability and comfort have a serious impact .
Superior anti-aging, anti-oxidation, high temperature performance, due to the pressure of structural steel structure with water features, its waterproof and airtight wood tiles is much higher than the keel structure. Less low ventilation and high thermal conductivity metal temperature so far in the metal structure much higher than the wooden structure . According to the construction site testing, under prolonged exposure to sunlight , the metal roof structure temperature can exceed 100 degrees . Most domestic PP spunbond nonwoven prolonged exposure to similar temperatures, thermal decomposition itself , the product loses water resistance, Czech Bauhinia Technology Co., Ltd. based engineering requirements.
Reasonable adjustment formula and raw materials. Extend the life of the product , reasonable permeability is the way to effectively solve the condensation buildup . Lack of "breathability" understanding of the mechanism , the use of waterproof breathable membrane misunderstand . Vapor pressure difference is to promote the movement of the underlying causes. Water molecules through the " breathing " membrane comprises a microporous and molecular gap by two . Theoretically " breathe " is a bi-directional . Different from wood, fiberglass , cotton, cotton perlite higher water absorption, reasonable construction plan and approach is the basic method to prevent rain or snow melt water intrusion .
Recommend laying waterproof breathable membrane film , overlay installation. Construction units to use butyl tape waterproof breathable membrane overlay film at any Sting perforation . When installing waterproof breathable membrane film , the use of hats U -bend nails and nail .
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