Blog Archives

Wall-to-Wall Carpeting

Basically, there are two types of wall-to-wall car­peting. Conventional carpeting is laid over a sep­arate rubber or foam padding and must be stretched and attached to tackless strips around the perimeter of the room. Cushion-backed car­peting, which has foam bonded to its backing, doesn’t need to be stretched—it’s usually glued down—so it’s generally easier to install. However, it must be destroyed to remove it. Consequently, better-quality carpeting is almost always conven­tional, and that’s the focus here.

Carpeting doesn’t ask much of subflooring, which can be slightly irregular as long as it is dry, solid, and adequately sized (58-in. plywood is typical)...

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Chance-Constrained Water-Quality Management

Water-quality management is the practice of protecting the physical, chemi­cal, and biologic characteristics of various water resources. Historically, such efforts have been guided toward the goal of assessing and controlling the im­pacts of human activities on the quality of water. To implement water-quality management measures in a conscientious manner, one must acknowledge both the activities of the society and the inherently random nature of the stream environment itself (Ward and Loftis, 1983). In particular, the environments in which decisions are to be made concerning in-stream water-quality manage­ment are inherently subject to many uncertainties...

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ADHERING AND SEAMING THE FLOORING

Some flooring materials are adhered only along the edges (perimeter bond), whereas others are completely glued down (full-spread adhesion). Flooring secured by full-spread adhesion is less likely to migrate or stretch and hence is more durable. Follow the installation instructions that come with your flooring. Be sure your supplier provides the manufacturer’s instructions on adhesion and seaming methods that may be unique to your resilient flooring.

Full-spread adhesion. After the resilient floor­ing is final-trimmed in place, it is typically lapped back halfway, exposing roughly half the area underneath. Using a square-notched trowel, spread a compatible adhesive on about half the floor. Unroll the lapped portion down into the adhesive, and immediately use a 100-lb...

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Determination of Compliance of a Tested Sample with a Recipe

After extraction, the result of each sample is compared with admissible deviations on test sieves and soluble binder content. A mix may be regarded as compatible with a recipe when all its components are within admissible tolerances.

Table 14.2 depicts an excerpt of Table A.1 of Annex A of the standard demon­strating admissible deviations from a target appropriate for producing SMA mixes with D less than 16mm (e. g., the group of small aggregate mixtures using the single result method). Using admissible deviations, the accuracy of measuring methods has already been taken into account.

14.8.3.4 reaching the ocL Assessment

After assessing the mixture extraction results (the set of 32 results), one can deter­mine the OCL level...

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THE PROBLEM IS IN THE TANK

There are times, even with new systems, when the problem causing a whole – house backup is in the septic tank. These occasions are rare, but they do ex­ist. When this is the case, the top of the septic tank must be uncovered. Some tanks, like the one at my house, are only a few inches beneath the surface. Other tanks can be buried several feet below the finished grade.

Once a septic tank is in full operation, it works on a balance basis. The in­let opening of a septic tank is slightly higher than the outlet opening. When water enters a working septic tank, an equal amount of effluent leaves the
tank. This maintains the needed balance. But, if the outlet opening is blocked by an obstruction, water can’t get out. This will cause a backup.

Strange things sometimes happen on construction site...

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Site-built versus prefabricated stairs

Most stairs are site-built because it is economical and because the process provides a temporary stair for construction. But in some cases, stairs prefabricated in a shop are more practical. Prefabricated stairs (see 213C), whether simple or complex, can be made more solidly and precisely than site-built stairs because they are made in the controlled environment of a shop.

additional decisions

There are several other design decisions to make regarding both interior and exterior stairs. The primary decisions concern whether the risers are open (see 214A) or closed (see 216) and the design of the balus­trade (see 218-220) and the handrail (see 221).

Подпись: FRAMING OF ROUGH OPENING IN FLOOR SEE 38BПодпись:Подпись: THIS HEADER CAN SLOPE IN TIGHT SITUATIONS.Site-built versus prefabricated stairsDOUBLE 2X HEADER AT TOP OF STAiR (DASHED); POSiTiON DETERMiNED ВУ METHOD OF CARRiAGE CONNECTiON SEE 212

NOTE

wiDTH Of ROuGH OpENiNG DEpENDs ...

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CUTTING AND FITTING RESILIENT SHEETS

To transfer the outline of the room to the resilient flooring, place a blade of the framing square on the scribed line and run a utility knife along the outside edge of the blade, as shown in the photo on the facing page. The mark made by the utility knife—112 in. beyond the scribed line—represents the cut-line you’ll make in the resilient flooring. But the utility knife should score the flooring
only about one-third deep. After you’ve scored with the utility knife, use a hooked knife to cut all the way through, with the scored line guiding the hooked knife. Hold the hooked knife at a slight angle, so it undercuts the edge. At some point, you’ll also trim off the flooring’s factory edge, which protects the material in transit.

Once you’ve cut the outline, remove the paper template and l...

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CREATING A TEMPLATE

Bring resilient flooring sheets onto the job site at least 24 hours before working with it, so it has time to acclimate to room temperatures (at least 68°F) Resilient materials are more pliable when they have warmed and less likely to crimp or crease. As you roll and unroll resilient sheets, be careful not to crimp the material, which could crease its surface and be visible forever after.

There are several ways to transfer a room’s dimensions to resilient flooring sheets, but none so accurate as creating a template, especially if there are refrigerator alcoves or base cabinets to work around. Create the template with 15-lb. felt paper, which is inexpensive and, being stiffer than rosin paper, is not likely to tear as you trans­fer the room’s outline to the resilient flooring...

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Choose and install exterior-door locksets and deadbolts

These days, security is a concern in many areas. When a house is first closed in, it’s a good idea to buy an inexpensive door lock to seal it off. That way, you can have a bunch of keys made and give a key to any contractor who needs to get in. There is no need to install the finished locks until after the painting is done and just before the final inspection.

With door locksets, you’ll find a wide range of prices for different products. The quality range is just as broad. You don’t need to buy the best lock on the shelf, but you shouldn’t buy the cheapest, either. The exte­rior lock-set is used many times every day, and a bargain-basement lock won’t hold up over the long haul.

LEVERS, KNOBS, AND KEYS...

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Analysis of Mixture Composition

Each sample is subjected to extraction testing, resulting in a gradation of the aggre­gate mix and a content of soluble binder. The sieving operation should be conducted using a set of sieves as in Table 14.2. The standard stipulates testing the aggregate gradation through five sieves (plus possibly a sieve for oversize particles 1.4D). The small number of test sieves speeds up the control analysis but at the same time increases the responsibility of the mix producer to achieve other final SMA proper­ties determined by a recipe. It appears that the proper selection of optional sieves for the coarse aggregates that control the skeleton is of great significance.

14.8.3.3 selection of a method for Estimation of Extraction Results

Prior to the comparison of extraction results with admissible...

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