【正文】 problem during installation with other types of windows. It is extremely hard and thus highly scratch, dent and impactresistant, and its strength is unaffected by time or temperature. Compatible thermal expansion. Because fiberglass frames are essentially glass fibers and resin, the frames expand and contract very little and at approximately the same rate as glass itself. If there is any expansion and contraction, the ponents expand and contract as a unit, unlike most window and door frames which have an interface of different materials: glass on wood, glass on aluminum or glass on vinyl. Aluminum is said to expand and contract three times as much as fiberglass and vinyl over seven times more. The minimal expansion and contraction of fiberglass puts less stress on the seals and frametoseal connection is maintained during temperature changes throughout the day and the seasons, thereby reducing the potential for air infiltration, a major cause of a building39。 alternatively, pigment can be added to the resin. With low conduction of heat, and the stability in fiberglass, it can also be painted in a variety of dark colors Cost. One downside of fiberglass windows has been the cost, with prices running 20 percent to 30 percent more than the average vinyl window A key factor here is the plicated pultrusion process, which is not as fast as the extrusion process used to fabricate vinyl or aluminum frames However, with fiberglass manufacturers incorporating advancements in pultrusion, die design, fabrication, and assembly, larger quantities of fiberglass are being produced faster, with a corresponding drop in prices. In addition, while upfront costs of a fiberglass window may be higher than other window types, because of their durability, fiberglass windows may be a better value over time. Reed College in Portland, Oregon, features TudorGothic architecture and a forested canyon wilderness preserve at its center. When the school39。 high condensation resistance helps keep humidity within a suitable range and limits the growth of mold and mildew. Low thermal transmittance. Fiberglass39。 Slim frames plement modern architectural styles Longlasting, reliable operation Costeffective .Easytoinstall Durable t easily be painted, but are often available in white and various neutral colors that plement many design schemes. Because the color permeates the material, scratches and dings are nearly impossible to see. New technologies have enabled some vinyl window manufacturers to paint vinyl, however, they must choose from a limited color palette and have the correct paint formulation in order to prevent deformation of the vinyl due to heat buildup. Quality varies by manufacturer and position of the vinyl pound, which will dictate its performance over time. Each additive to a vinyl recipe helps determine the longterm characteristics of the final product, such as its weather and impact resistance。 Available in custom colors and designs swindows. Provided by Milgard Windows amp。 其中 一個關鍵的因素是復雜的拉擠成型過程， 沒有 制造乙烯基框或鋁框過程快。 裝飾 細節(jié) 玻璃纖維是可繪畫 的 ，油漆 對 玻璃纖 維具有優(yōu)異的附著力，如可容納水和溶劑型丙烯酸漆和聚氨酯以及干粉 或 液體涂料。因此，它的溫度應保持 恒定 。這是一個值得期待的 、 有許多不同的配置窗戶。 在內飾方面，清晰的垂直杉木 紋理 很容易與現(xiàn)有的進行匹配。當學校的行政大樓進行了 常規(guī) 的升級與恢復 時 ，第一期包括 200 個窗戶的更換。如果有任何擴張和收縮，各組件如同一個統(tǒng)一單位， 不像大多數(shù)窗口和門的框架，會有一個不 同的材料界面 ：玻璃和木材，玻璃和鋁材或玻璃和乙烯基。因為它是強大的和堅 韌 ，玻璃纖維易于安裝。許多房間直接提供了海景，部分客房更是可以直接看到蒙特利海灣全景。它的強度使玻璃纖維可以按大尺寸制造，可 安裝 無需 另 添支 撐 或加固的大面積玻璃，使得大型觀景窗成為可能并且能源效率高， 高強重比 重量輕的玻璃纖維提供了一個高強重比，增加其對大型、復雜的輪廓采光適 宜性的同時 最大限度地提高效益和在恢復項目，加強修復項目的歷史準確性?？v觀任何氣候環(huán)境中，玻璃纖維保持剛性 、 穩(wěn)定 、 幾乎免維護。 鋁的特性包括： ?持 久，可靠運行 ?堅固耐用 ?抗老化 ?寬視域 ?斯利姆框架補充現(xiàn)代建筑風格 ?耐用的工廠用的顏色 玻璃纖維 玻璃纖維曾在航海業(yè)和工業(yè)應用多年，只是在最近，制造商才按窗 戶 設計 的 要求 生產復雜配置 的 零件。鋁容易傳導熱與冷。s Chemical Engineers Handbook, Sixth Edition, D .Green, McGrawHill, New York 鋁 由于其硬度，耐用性和精巧的框架，鋁窗可以配置成豐富組合，最大限度滿足各種要求。乙烯基配方的差異，以及如何 利 用乙烯基結構，將決定 其 結構強度和絕緣性能 。因為