Question_4.pdf
PDF 176 KB Posted
- Attached to
- Repair Roof B1799, Firing Range
- Solicitation number
- W912L7-18-B-7005
About this file
Response to Question 4
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Other files
| File | Type | Posted |
|---|---|---|
| Question_5.pdf | ||
| Answers.pdf | ||
| 18B7005_solicitation_Mod_1.pdf | ||
| Sign_in_Sheet.pdf | ||
| Site_Visit_Slides_6_June_2018.pdf | ||
| Preproposal_minutes_W912L718B7005.pdf | ||
| Drawings.zip | ZIP file | |
| Specifications.zip | ZIP file | |
| 18B7005_solicitation.pdf | ||
| PWS,_PSXE162006_Repair_Roof_Bldg_1799.pdf |
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Text version
4. Question: I have subcontractors / suppliers that are saying that the AR500 plate cannot be drilled thru with self-drilling screws. I would like to recommend that we bolt 2”x 4” to the underside of the plate with carriage bolts and then screw the plywood to the 2”x 4”. This would cause the fabricator to cut holes in the plate at 16” on center each direction. Also I would recommend that the 2”x 4”’s be pressure treated to hold down the possibility of deterioration.
4. Answer ETL 11-18 requires that the FRT plywood facing be applied directly to the face of the steel plate using flathead countersunk screws. Voids that would be created using nailer plates would not be permissible. If there is difficulty installing the self-drilling screws in the required steel plate material, it may be necessary to pre-drill holes in the field to allow proper screw penetration.
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