-R-Value is the measure of thermal resistance used in the building and construction industry
|Lumber||Steel/Polystyrene Panel||“True” R-Value||“Effective” R-Value|
Our R-Values last the life of the product, and don’t diminish over time
Our 7-1/4″ – 11-1/4″ walls have a built in thermal barrier using the polystyrene
Our 5-1/2″ have no issues with thermal bridging if a 1″ polystyrene is applied to the exterior of the wall, commonly used for stucco applications.
STC-Sound Transmission Class
-An integer rating of how well a building partition attenuates airborne sound.
-A single number quantifier used to rate partitions (walls), doors, and windows for their effectiveness of blocking sound
Wood framing with drywall on both sides and fiberglass batt has a 34 STC Sound rating.
-Treated with natural pesticides
-Meets ASTM C578 Specifications
-Flame Spread is 15#
-Smoke Developed 150#-300#
Drywall Attachment Details
Drywall attachment on 7-1/4”- 11-1/4” walls
-The drywall is attached using a self tapping screw to 20 gauge steel tracks which have rounded edges which is screwed to the steel studs through the polystyrene. Behind the drywall attachment track is an electrical chase.
Drywall attachment to 3-5/8”- 5-1/2” walls
-Drywall is attached to the framing members using self-taping screws.
Steel componnent Design and Assembly
All components comply with ICC Report 4943P and the AISI Specification for the Design of Cold Formed Steel Members - ASTM C-955 and ASTM C-1007 Assembly of strctural components complies with the 2006 International Residential Code. Headers comply with the North American Steel Framing Alliance L-/shaped Header field guide.
Wind and Load Bearing
Wind and load bearing requirements are per structural engineer and are dependent on the local codes. Virtually all wind or load bearing requirements can be accommodated in both residential and commercial structures up to four stories in height.
Steel Attachment Details
|Track attachment detail
-Most commonly 18 gauge
-Studs attach to the track using #8 self-drilling
screws through the stud Flange and rack leg
-Assembled using typical three stud corner design making the framing strong
in even the most demanding conditions
|Simpson SH2.5 Roof Attachment
-SH2.5 are seismic and hurricane clips.
-The SH2.5 is a twisted strap tie that is
used to attach a rafter to the side of the
top plate. These ties are shipped in equal
quantities of separate rights and lefts.
-Use of a wood top plate allows for
easy truss attachment
|Simpson STHD10 Embedded strap
-The STHD10 is a steel strap that
is embedded into the stem wall.
-There is a minimum 6” stem wall requirement
-Can be attached to stud or an 18 gauge steel
plate spanning structural studs w/ self-tapping screws