Programming Documents for Pre-K for SA - The City of San Antonio
Programming Documents for Pre-K for SA - The City of San Antonio
Programming Documents for Pre-K for SA - The City of San Antonio
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
• Putty<br />
• Wrap strips<br />
• Pillows/bags<br />
• Sprays<br />
Mechanical systems consist <strong>of</strong> manufactured elastomeric components pre-sized and shaped to fit<br />
around standard cables, tubes, and conduits. <strong>The</strong>se products are made <strong>of</strong> several substances which<br />
resemble rubber and are flexible. <strong>The</strong>se systems use mechanical pressure to hold the elastomeric<br />
components in place and to provide a tight seal around the penetrating devices. Whether or not frames<br />
are included, some means <strong>of</strong> applying compression to the modules is required.<br />
Non-mechanical firestop systems are generally pliable. <strong>The</strong>se include products such as putties, caulks,<br />
blankets, silicone foam, pillows, and other types <strong>of</strong> materials that can be molded to fit into an opening<br />
to seal it.<br />
When firestopping conduits, fill ratios provided by the manufacturer shall not be exceeded. Failure to<br />
comply with these requirements will prevent the application <strong>of</strong> the proper amount <strong>of</strong> firestop being<br />
installed around the penetrating cables and not allow the intumescent properties <strong>of</strong> the firestop material<br />
to be realized. This will lead to failure <strong>of</strong> the firestop.<br />
10.2 Typical Installations<br />
10.2.1 Sealing a Floor Penetration With Putty<br />
<strong>The</strong> following describes an example <strong>of</strong> installing a putty seal from one side <strong>of</strong> a floor<br />
penetration.<br />
1) Tear <strong>of</strong>f a small portion <strong>of</strong> the putty.<br />
NOTE: Use a drop cloth or other cover to protect the floor surface from the putty and insulation<br />
material.<br />
2) Use the putty to build a bottom in the penetration, according to the manufacturer’s<br />
instructions.<br />
3) Fill the penetration with ceramic fiber or rock wool fill, stopping far enough from the upper<br />
rim to allow <strong>for</strong> a top layer <strong>of</strong> putty at the manufacturer’s recommended thickness.<br />
4) Use the putty to build a top on the penetration, according to the manufacturer’s instructions<br />
10.2.2 Sealing an Outlet Box With Putty<br />
To seal an outlet box, follow the steps below.<br />
1) <strong>Pre</strong>ss a pad <strong>of</strong> putty into place, covering one side <strong>of</strong> the outlet box. Ensure that the pad<br />
overlaps at the top, bottom, and sides<br />
55
Change language