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Installing Pre-Cast Concrete Basement Stairs and a Bulkhead

Bob is at the Mashpee home site for the installation of the pre-cast basement entry system from Bilco. He looks at a finished system and remarks on the light, sturdy doors that are molded of high-density poyethylene, ribbed for strength, yet light weight and low maintenance. He then visits an installation in progress to see how the pre-cast concrete stairs are drilled to accept the threaded steel rods that will join the stairs to the foundation. The faces of the stair system that will receive the butyl resin and bond with the foundation are first primed with a catalyst to help the butyl resin adhere. The resin is laid on in strips that will flatten, spread, and compress as the stairs are lowered into place and pressed against the foundation to form a water-tight seal. The stairs are made of 5,000 PSI (pounds per square inch)concrete that is so dense it doesn't need waterproofing treatment like the foundation. The door leaves are installed last, with pre-molded cutouts for the hardware. These light, ribbed doors are actually as strong as steel, but never need to be scraped, primed, or painted. They are sold as a premium product, at a higher price than traditional steel doors, because they are built to be secure and maintenance-free. These doors shed water by design, and direct it away from the house and the door opening.
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Installing Pre-Cast Concrete Basement Stairs and a Bulkhead

  computer-generated transcript - may not be 100% accurate

" OK I'm coming out of my newly installed perm entry. And it's a little bit -- close to Halloween but it does seem like we're coming from the -- this is a precast concrete system. That is put in and attached directly to the foundation we got together few days ago with Gary LaFave who's been installing them around here quite a long time and -- Worthington who export explained the process to me. But before we look at that this is what really really impressed me these doors. Aren't you alternatives to the traditional steel door which sturdy as it is and you know. So it's it's a wonderful improvement over a wooden bulkhead steel does have to get repainted every couple years because it will rust. And this is a new type of product that is just coming on the market. And it has a long long life expectancy the parts that. Count are steel and you know the security is still there but from the point of view of the surface itself. It's a new polymer material and it's extremely sturdy because of all this ribbing that's put into it and anyway let's take a look at the work that was being done last week. Here we have our precast. Set of cellar stairs and what has to be done before we can hoist it up and put into place."

" Was put in the steel for a threaded rod now that's to go through the holes for the more on non washable account for the wall. The measure each one off so that's going to the wall plus approximately an inch come off with a so flesh. Overtures to the Bilco company yep. Reinstall of about 800 last year. You've been averaging somewhere within a 1800 for the last eight to ten years. Now what's this -- This is the primer the primer side just so stick around the hill resident. This goes on the casting to go lower -- go across the bottom approximately two inches. And then it goes on the concrete wall foundation and across the floor facing as well so basically it's a cattle yes it. It gels the edges of the the butyl so that it sticks as well as -- So what is this step this is the -- resin. This is the sealant that goes between the casting and the wall oh I expected it would come out of -- 2% and it. As you tighten up the bolts that compresses it yes and that's what -- on the school's really little gaps and crevices. Before we drill the wall we checked all the they show that it's flat as any -- and it. We -- the -- is we have a little bit tyrants of the area where. You know it's going to be able -- We've got a good seal. It's important to get this sealed up properly and then make sure -- Proper drainage initial that the area sheds water away from -- that's always support. All right now it says on the side of this that it weighs 6500 pounds -- you tell us about the actual concrete. The concrete it's steel reinforced 5000 PSI concrete. Because of the density of the concrete you don't have a lot of republic into the foundation yeah what's the PSI of the average foundation between 3030. Depending upon them."

" Because I did. That."

" Drill book."

" It's not at the top you're like a little bit. All right that's all there is to it right there right now. Thanks very much -- we're gonna go over of one of the other cellars to see how they actually install the Bilco door thank you. The size replace theater anchored. An extension piece and he is ready to what's called the roads the actual door leaves and here's an example. All of the police. Is this the one unique. OK here we go."

" Don't weigh much. Product right like this is high density polyethylene material. And you can see on the underside extensive ribbing has been designed into the product for stiffness for stiffness that this product is as stiff as a steel product. What about keeping the cold out. This has insulating air space yeah inside which helps in regard to reduce condensation and reduces the kind of say absolutely. Wonderful now is the cost going to be comparable to this deal this will be a bit more because the costs are present them. That we see this as a premium products on a hall where homeowners very interested in low maintenance and is willing to pay a premium to achieve that great. Well let's take a look at how it's coming together. OK. So what seems to be really impressive is the ease of installation has no real -- do it yourself project isn't it. That's -- there's the hardware is easily installed as you can see Bob is handling. And there are molded in sections here on the door. Or receiving the hardware so that you can't misplace hardware how waterproof will it be. Very waterproof -- all of the components. Are molded such that it directs Rainwater away from the opening like that piece above there -- the header yeah that header there is designed to shed the water over the side piece it cannot come into the opening."

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