【正文】 or sustainable products with low life cycle costs. As more mainstream window and door manufacturers introduce fiberglass lines for new construction and replacement situations, products have bee available in a full range of energyefficient options including lowE argonfilled insulating glass units and in a variety of styles from casement to single and doublehung to plex custom profiles. This article will discuss next generation offerings in fiberglass windows and provide a parative analysis of fiberglass and other framing materials. Also covered will be code and design considerations in specifying an appropriate fiberglass window FIBERGLASS WINDOW OPTIONS According to , a non profit website whose sole mission is to encourage the creation of wellbuilt buildings made with sustainable materials, using fiberglass for a window frame material is, in some cases, preferable to other window frame materials like wood, vinyl, or metal”A relatively young product, fiberglass window frames are available in several versions Chief among them are the allfiberglass frame that bines a traditional woodframe profile with the strength, stability and low maintenance characteristics of fiberglass. These windows resemble traditional painted wood windows with factory applied exterior colors. Quite recently, manufacturers have also introduced a line of windows in which the fiberglass production process enables plex profiles required for the look of painted wood windows on the exterior, bined with a natural wood interior. Better options in this category feature furnituregrade, clear, verticalgrain Douglas fir, mahogany or other species on the interior unmarred by nail or staple holes, a powdercoated exterior finish and builtin systems to increase both energy efficiency and window longevity. FIBERGLASS: WHAT IS IT AND HOW IS IT MADE? Fiberglass is a posite structural material that consists of fiber reinforcements, typically glass, that are bound together in a resin matrix. Unlike mon fiberglass used in pools, boats, and storage tanks, fiberglass frames are produced via pultrusion, a process in which glass rovings and mats are pulled at tremendous force through a resin bath and a series of dies where the resin sets to the desired shape and the materials bine and catalyze to provide high tensile and torsional strength. These dimensionally stable fiberglass lineals are then assembled into window frames, which can be filled with foam insulation and glazed with highperformance lowE insulating glass for higher performance. Fiberglass window frames are produced similarly to vinyl, however where fiberglass is pultruded, or pulled, vinyl is extruded, or pushed, through a form tocreate a similar shape. ATTRIBUTES OF FRAMING MATERIALS The window frame which makes up some 20 percent of the total window area,is an important factor in window39。然而，隨著玻璃纖維制造商 采用 拉擠 、 模具設(shè)計 、 制造和裝配的進步工藝 ， 大量的 玻璃纖維 被越來越快地 生產(chǎn)， 并且成本也 相應(yīng)下降。此外，可以 使用 添加色素的樹脂。由于玻璃纖維絕緣材料是如此有效，因為外面的溫度不會 影響的玻璃纖維窗戶本身，不會形成凝結(jié) 水 。 ” 總承包商格倫謝潑德指出 。玻璃纖維窗戶，也因為高能源效率和低環(huán)境影響的選擇，取代單窗格雙懸窗，因為它幾乎沒有隔熱效果。用 雙懸 拉擠玻璃纖維框架進行改造安裝。鋁材的擴張和收縮率是玻璃纖維的三倍之多，超過乙烯基七倍。玻璃纖維窗戶在安裝過程中，保持方正 及 水平并且抵御 變形和扭曲 ， 這是 其他類型的窗戶安裝則存在一個常見問題。天井 得 推拉玻璃門， 單懸和圖片窗戶在多年使用 中， 承受侵蝕和充滿水分 的空氣 。 罐頭廠街酒店獲得玻璃纖維窗簾 在加州的蒙特利克萊門特洲際酒店，開業(yè)于 2020 年 5 月，玻璃纖維窗戶產(chǎn)生了各種各樣的好處。不同于木材，玻璃纖維不會干燥 、 腫脹 、 剝離或變形。作為一個窗框材料，玻璃纖維因其強度、耐用性和性能而聞名。在寒冷的天氣，建筑物的熱屬性 單位 乙烯 鋁材未斷熱橋 鋁材未斷熱橋 玻璃纖維 模量 Psi 105 10７ 10７ 10６ 屈應(yīng)力 Psi 8000 35000 35000 60000 熱傳導(dǎo) 單位溫度 熱量系數(shù) 140 140 膨脹系數(shù) 單位溫度變形系數(shù) 29 10－ 6 10－６ 10－６ 10－６ 熱變形溫度 。鋁窗只需低成本維護，不會生銹或腐爛。 乙烯的特性包括： ?節(jié)能 ?耐用 ?非腐蝕 ?免維護 ?提供廣泛的風(fēng)格和形態(tài) ?成本效益 ?易于安裝 表 1 一比較框架材料的物理性質(zhì) *基于雙低輻射（太陽低增益）窗戶玻璃大小類似的窗戶比較 **最高幾乎達(dá)到的性能的值的變化與纖維體 積分?jǐn)?shù)呈線性關(guān)系 資料 1： Residential Windows: A Guide to New Technology and Energy Performance, Second Edition, J. Carmo