Laminated gypsum wallboard in mid-rise wood construction
Bibliographic record
Abstract
Mid-rise wood construction is a cost-effective and sustainable choice to achieve high performance in commercial and multi-family residential housing. It is gaining popularity in the industry as several building codes, including IBC (2009) and NBCC (2015), now allow five- and six-story constructions, respectively. Acoustic comfort in such buildings is important to attract and retain occupants. Because of its lightweight construction nature, the new code changes the requirements for airborne sound insulation between dwellings from a Sound Transmission Class (STC) rating which only describes the sound insulation of the common partition between rooms to an ASTC rating, which includes contributions from all of the flanking paths. This paper shows laminated SilentFX/QC gypsum wall board is a fast, economical, space-saving, and code-compliant solution in meeting the ASTC requirement of the new building codes with examples. The test methodology is based on ISO 15712 and ISO 10848 standard, and follows the procedure outlined in NRC-331 publication. It consists of testing STC and radiation efficiency of wall partitions and measuring the vibration reduction index of various conjunctions between the partitions and different flanking paths. The ASTC predictions were validated with prior results obtained from the NRC Flanking Facility.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".