It should always face the warm-in-winter side. Thus, in cold climates, it should face the interior; in hot humid climates, it should face the exterior. If a vapor barrier is installed on the wrong side, it can trap moisture inside wall cavities causing condensation to accumulate.
This results in a musty smell, and eventually will cause wood to rot; it could even promote a serious mold problem. Got insulation installed wrong side up? If so, remove it immediately, and inspect the subsurface for moisture or mold before reinstalling or replacing. I don't see notes about using vinegar in a di On the Feb 8 broadcast you mentioned two item I went on to Chemcore website and could not l Join our mailing list to receive the latest news, tips and updates from our team as we put on our radio show - On The House, go to trade and consumer shows and share our journey in home improvement, building and home products.
As in, IN a garbage can where the fiberglass batt attached to it belongs. Skylar S. Thanks for the shout out, Thanks for the shout out, Allison! Dave: feel free to use it! We have started instralling We have started instralling over the stud face in PA and Nj on my projects. I noticed a differance on rough just before drywall. It was easier to keep the house warm in comparison to when we installed the staple tabs on the side of he studs.
I love arguements with the inspectors. Allison—a great article. Well done. Allison — your comments Allison — your comments about the irrelevance of the location of kraft facing on fiberglass batts are spot-on, and for all the reasons you iterate. The damn facing obscures your work, slowing down the installation and resulting in a poor insulation grade. Just buy un-faced batts, install them to Grade 1 and build your air and moisture control systems in another layer big separate discussion.
Many of these had faced batts installed in the building cavities, with facings installed in every imaginable configuration — up, down, in, out, torn, taped, stapled here, stapled there — and I have never ONCE seen evidence of moisture accumulation resulting from diffusion in these building cavities. It just does not occur. Lots of damage does occur of course from bulk moisture and air migration another big separate discussion. So I can agree with you with great certainty: The location of kraft facing is irrelevant because the entire system is an impotent, lousy, fake control layer anyway.
Abe K. Of course, if air is moving in the cavity at all, it can move right through the fiberglass, too, so air-sealing is critical.
Debbie : I think the only way to do that effectively would be with modular homes, where they building inside out. The drywall goes in before the exterior sheathing does. Wynn P. If you want to make the space warmer, the foil should face inside so it can reflect radiant heat back into the room. When installing a new roof or redoing an existing one, the roof decking goes on first. This is followed by a moisture barrier, which is typically 30 or heavier roofing felt or tar paper.
The foil insulation goes on top of the moisture barrier, followed by the roof covering. If you use bubble foil or rigid foam insulation, it also goes on top of the moisture barrier. Remember that there has to be an air space between the foil and the roofing. Most metal corrugated roofing automatically provides this air space. If the corrugations are such that only about 20 percent of the material is in contact with the roof, it's fine to lay corrugated roofing directly on the foil.
If you're installing flat roofing or metal tiles, however, you need to construct a batten structure on top of the foil. Roofers typically use one of a number of batten configurations.
The battens can run parallel to the roof ridge or diagonally between the ridge and drip edge. To ensure that air can circulate, it's important to leave a 2- to 3-inch gap between the ends of the batten boards. Some batten structures consist of two layers, one perpendicular to the ridge and the top layer parallel to it.
In this type of double-layer structure, it's permissible to lay the foil insulation between the layers. If you're doing your own roof installation, you won't have any trouble installing a radiant barrier, but there are a few things you should remember. They will help you complete the job correctly and safely:. You're right, the foil is intended to reflect radiant heat. If you want to keep heat in, the foil would go to the inside.
Foam board insulation is easy to use and is a great DIY way to add some insulation. Some types of thicker foam board insulation are available, but they may need to be special ordered. Rigid foam insulation , whether it is expanded or extruded polystyrene, does have to be covered if it is installed in the interior of a building.
This wall covering must have a minimum fire rating to protect the insulation from quick combustion during a fire. Choose the right type of rigid foam for your needs Polyisocyanurate: Known as polyiso for short, polyisocyanurate foam has the highest R-value per inch R Extruded polystyrene: Extruded polystyrene XPS rigid foam is usually blue or pink in color, with a smooth plastic surface. Rigid foam board insulation can be used throughout the home, but most often it is found in basement walls.
Any insulation is usually better than no insulation , as long as that insulation does not create more problems for you later on. With insulation , a higher R-value means more effective insulation. The insulation we are talking about is made of fiberglass and is commonly found in most homes. A radiant barrier , on the other hand, actually blocks and reflects heat back to where it came from, rather than just slowing down the process.
The reduced heat gain may even allow for a smaller air conditioning system. In cool climates, however, it's usually more cost-effective to install more thermal insulation than to add a radiant barrier.
In general, installing a radiant barrier in your attic or on your roof will not affect your cell phone's signal. However, if you already have a weak signal, then installing a radiant barrier may push it to the point that you may have some reception issues.
0コメント