When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Purlin - Wikipedia

   en.wikipedia.org/wiki/Purlin

   The purlins are the large beams perpendicular to the rafters; from this shot, it appears that there are three purlins on either side of the roof. The sheathing boards are sometimes called the roof deck and are painted white. A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof.

3. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   A metal roof is a roofing system featuring metal pieces or tiles exhibiting corrosion resistance, impermeability to water, and long life. It is a component of the building envelope . The metal pieces may be a covering on a structural, non-waterproof roof, or they could be self-supporting sheets.

4. Tie (engineering) - Wikipedia

   en.wikipedia.org/wiki/Tie_(engineering)

   Rafter ties are designed to tie together the bottoms of opposing rafters on a roof, to resist the outward thrust where the roof meets the house ceiling and walls. This helps keep walls from spreading due to the weight of the roof and anything on it, notably wet snow. In many or most homes, the ceiling joists also serve as the rafter ties. When ...

5. Anchor bolt - Wikipedia

   en.wikipedia.org/wiki/Anchor_bolt

   Tapcon screws are a popular anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are referred to as LDT's. This type of fastener requires a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole using a standard hex or phillips bit. These screws are often blue, white, or stainless ...

6. Bolt (fastener) - Wikipedia

   en.wikipedia.org/wiki/Bolt_(fastener)

   This definition allows ambiguity in the description of a fastener depending on the application it is actually used for, and the terms screw and bolt are widely used by different people or in different countries to apply to the same or varying fastener. In British terminology, a cap screw is a bolt that has threads all the way to the head.

7. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood. Twinfast screw: A Twinfast screw is a type of screw with two threads (i.e. a twin-start screw), so that it can be driven twice as fast as a normal (i.e. single-start) screw with the same pitch. [4]