Truly Confused With Fiberglass Windows
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8 years ago
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8 years agoHomeSealed Exteriors, LLC
8 years agoRelated Discussions
Best Vinyl/Fiberglass double hung windows for a high-end home?
Comments (3)I agree with MWM on the FG options. In vinyl, a few of the premium choices are Okna/Himark, Softlite, and Sunrise. All are available with the SDL options... The vinyl will probably run a little bit cheaper than the FG options, so you'll have to determine which fits your needs and budget better....See MoreWindow Confusion
Comments (2)There is a lot more than Energy Star out there. Aluminum, even with a thermal break, is the least efficient sash/frame material. The others are all pretty close and are really a matter of personal preference. Each material will have its proponents and its detractors. Personally, I think that fiberglass might be the material of the future and there are some very nice fiberglass windows on the market...but, I say that as personal opinion and in no way am I detracting from either wood or vinyl as a window material. Of course in every product or material there are higher quality and lower quality products. Triple glazing is more of an issue in a heating dominated climate than in a cooling dominated climate. In your case you want to block heat from entering your home. A LowE2 coating will help to reflect the outside heat away from your windows and keep it outside where it belongs. This coating will also help a very great deal on that late afternoon solar heat gain as well. The Efficiant Windows Collaborative is a good site. It has good information and it is worth the visit. I am also including a link for you to visit which I think that you might find useful. Here is a link that might be useful: Windrose Project...See MoreWhoKnew: Confused about Window wood v alum questions
Comments (6)Thank you for referencing the post regarding the quality of old wood windows. Your issue with the sash weight cords can be easily remedied by carefully removing the interior wood casing, or removing the small "doors" held in place by one screw in the side jambs (often this feature was not available). Either of these options would allow access to the weights within the wall cavity. The weights are attached to the cord/rope by a simple knot, and the sash contains a mortise on the sides. The opposite end of the rope also contains a knot and a small nail to secure the knot/rope to the sash within the wood mortise. A new cord/rope can be purchased from your local hardware store and cut to the appropriate lengths required for proper travel. Be sure to oil the wheel assembly mounted to the top area of the jamb, or remove the wheel assembly before the cord is replaced and clean all paint residue before applying oil. Another simple maintenance item would include taking a bar of paraffin wax and rubbing it up and down within the jamb pocket where the sash slides up and down. This will allow the sashes to travel up and down with much less effort and may help remedy your "stuck" issue once the sashes have been "un-stuck". The "sticky" sashes may simply be due to the paint bonding to itself within the jamb pocket. The wax will solve this problem too. Many old structures have moved or settled over the years and that often caused window frames to become out-of-square. This situation does not allow the square sashes to "seat" properly within the frame, thus allowing air travel around the sashes. If this is minor, I have removed sashes and sawn a small kerf in the bottom of the lower sash and top of the upper sash and installed a compressible bulb type of weather-strip material used with modern wood windows. This provides compression when the sashes are closed and fills the void left by small differences in sash alignment to the frames. On a larger scale, wooden storm windows can be manufactured to fit the exterior side of the original double hung window (interior side if casements are used). The advantages of this "modification" are numerous compared to complete window replacement. Less mess and waste, shorter on site work time, less expense due to limited on-site labor, etc. Essentially, the most difficult aspect is making cardboard templates of the existing windows since the frames may no longer be square in the openings, and determining the pitch of the existing wooden window sill. We have often removed trim and re-set the existing windows square in the openings when there has been substantial movement/settling over the years. The storm windows would be manufactured off-site and may contain modern low-e insulating glass, if preferred. The frames would be made of a solid wood that is resistent to rot or decay. This could be cedar, cypres, mahogany, teak, etc.; take a look at what wooden boat manufacturers use in their construction for an idea on what wood to use. The edge of the new storm window frame should contain a rabbet on three sides that allows the frame to wrap the existing exterior window sash stop. This area will also receive a sawn kerf to accept a bulb weather-strip. The bottom of the storm panel is beveled to match the existing pitch of the wood window sill, and also receives a kerf and weather-strip. Once installed, the storm panel protects the existing window during cold months, provides energy efficient glazing compatible with modern windows, and provides air infiltration sealant through the use of multiple weather-stripping. This will likely alleviate your concerns about moisture and mildew on the exterior side of the original wood sashes. If condensation occurs, it will likely be on the new storm panel which is a marine-grade wood species. The aesthetic value in retaining original windows and wavy glass is sometimes tremendous. The cost saving value may be found in less on-site labor, but also in potential resale value due to the greater aesthetics in the original detailing. Among some additional advantages, this may be a good approach for many homeowners. In regards to the lead-based paint issue, I have never been too concerned about it, as it has been determined to be unhealthy when consumed and I've never thought of eating the flaked off pieces of old paint. Obviously, if very small children are present during paint removal, my opinion of lead-based paint would be different. I cannot imagine how much old paint I've scraped or sanded over my lifetime, but I've never given it much thought. Opinions may vary on this issue. On the same topic, I agree that lead-based paints did/do provide a more durable finish. Lead-based paints are still approved for commercial uses, such as for repainting steel bridges and such, as it is pretty important to protect such structures from rust. This may allow one to conclude that lead-based paints are more durable and may not be as highly toxic to normal human interaction. Lastly, regarding the difference in the two wood species, both pine and fir are considered "moderately" resistant to rot. Douglas fir may hold slight advantages due to some additional oils in the wood, but it is likely a longevity difference of today versus next week in terms of when they will each succumb to rot. If you're set on replacing the existing windows, an extruded aluminum clad-wood window can offer two benefits in that it is low maintenance on the exterior side and the heavy extrusion often offers additional structural integrity. Check window cut sections to view the amount of metal used, how it is applied to the wood, and how the aluminum is joined at the corners. I avoid clad wood windows that use screws, staples or glue to hold the metal to the wood. Due to expansion differences between unlike materials, these two should not be mechanically fastened to each other or it may be prone to separation at the corner joints. Physical attachments are a smaller concern, but still provide some bond between the unlike materials. Both instances may allow water penetration behind the cladding at some point in the life of the product, thus creating a hidden decay problem. We also don't use clad-wood windows that don't fully wrap the exterior frame with an extrusion, particularily at the sill. Any exposed wood in this area has proven to rot prematurely. I hope that you have found this information helpful....See MoreFiberglass Windows Wanted
Comments (9)Hi sberg, My info is 4 years old so things may have changed for the better (I hope) since then. Other pro-posters like Oberon, guy-exterior-man, paintbrush (?) and skydawggy are sure to have better information. In general, we learned then that use of screws in vinyl windows is undesirable. Weld and fuse is much better. We did not find out what Integrity used to connect the joints, sorry. Having worked with fiberglass as a hobby while in college, I will say that one piece formed fiberglass is the best because there is no seam. The second best would be weld or some sort of chemical (heat?) bonding that completely fuses the joints leaving no seeams. Beyond these two, I am now out of date as to what is best in joining fiberglass material. Using regular old screws is a definite no, no. You can check the local marina (if you live close by a lake, river or ocean) and ask the service people what they use for boat joints. Fiberglass boat hull is very common. You can then call Marvin Integrity and see what they say. This also tests Integrity's phone service quality. :-) We also learned that the more "air pockets" in the window frame, the better. This is true for fiberglass, aluminum or vinyl. There is a special trade name for air pockets but I forgot what it is. Basically, a frame that has 1 simple air pocket between the outside and the inside layer suffers from transmission of heat and lack of strength. It is like a simple empty box compared with the same box filled with a few honeycomb structures. The one with the honeycomb (more air pockets) will be significantly stiffer and stronger. Depending on how the honeycomb is set up, they also slow or significantly reduce heat transfer. So more air pockets generally translate to stronger window and of course, will cost more. If you have a good Marvin shop, ask to see a cross section of the window. We saw one in our local Marvin shop and it really helped. We asked for same from two local Milgard shops but they had none so we relied on on-line drawings from Milgard. We ended up with Marvin (not Marvin Integrity) because Marvin Integrity was fairly new at the time and did not have the color we wanted. Sorry, not much help here as it is near the limit of our research. We wanted wood interior to stain and we wanted solid wood pieces so we did not look too deeply into vinyl or fiberglass....See MoreA Aa
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8 years agoHomeSealed Exteriors, LLC
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