SECTION 06 13 00

REDWOOD LUMBER AND TIMBERS

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	Redwood products including the following:
1.	Timbers.
2.	Decking.
3.	Siding.
4.	Lumber.
1.2	RELATED SECTIONS
A.	Section 06 10 00 - Rough Carpentry.
1.3	REFERENCES
A.	Redwood Inspection Service (RIS) Standard Specifications for Grades of California Redwood Lumber 2019 Edition.
B.	PS 20 - American Softwood Lumber Standard - US Department of Commerce, National Institute of Standards and Technology.
C.	ASTM E84: Standard Test Method for Surface Burning Characteristics of Building Materials.
D.	California Building Code Chapter 7A: Materials and Construction Methods for Exterior Wildfire Exposure.
E.	Forest Stewardship Council (FSC) Certification: Humboldt Sawmill.
1.	FSC 100 percent; FSC Mix, FSC Controlled Wood
a.	Certificate Code: SCS-COC-000180 Trademark License Code: FSC C013133
2.	Well Managed Multiple Natural Forest Management Units Certification
a.	Certificate Code: SCS-FM/COC-00120N Trademark License Code: FSC C031337
F.	Redwood Lumber Patterns No. 17.
1.4	SUBMITTALS
A.	Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.	Product Data: Manufacturer's data sheets on each product to be used, including:
1.	Preparation instructions and recommendations.
2.	Storage and handling requirements and recommendations.
3.	Installation methods.
C.	LEED v4 Submittals: Provide documentation of how the requirements shall be met for the following credits:
1.	Building product disclosure and optimization - sourcing of raw materials
a.	Option 2. Leadership extraction practices (1 point). Wood products. Wood products must be certified by the Forest Stewardship Council (FSC) or USGBC-approved equivalent. Products meeting wood products criteria are valued at 100 percent of their cost for the purposes of credit achievement calculation.
D.	SITES v2 Submittals: Provide documentation of how the requirements shall be met for the following credits:
1.	Credit 5.7: Support responsible extraction of raw materials
a.	Option 3. Support raw material suppliers and/or manufacturers that meet or exceed standards for raw material extraction (5 points). New wood products: be certified by the Forest Stewardship Council (FSC) (or local equivalent for products outside the United States).
E.	FSC Submittals: Provide documentation indicating manufacturer is FSC Chain-of-Custody certified.
1.5	DELIVERY, STORAGE, AND HANDLING
A.	Deliver and store products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
B.	Handle materials to avoid damage.
C.	Store on a level surface with blocking to keep boards off the ground and provide uniform and adequate support.
D.	Redwood timbers contain water soluble extractives (tannins) which can stain concrete or other masonry. If stored over concrete, cover the concrete with a tarp to prevent staining in the event of rain.
1.6	PROJECT CONDITIONS
A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.7	SEQUENCING
A.	Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer: Humboldt Sawmill, which is located at:<BR />169 Main St.<BR />Scotia, CA 95565<BR />Tel: 707-764-4141<BR />Fax: 707-764-4444<BR />Email: request info (marketing@mendoco.com);Web: https://getredwood.com 
B.	Substitutions: Not permitted.
C.	Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
2.2	TIMBERS
A.	Material: Redwood.
B.	Posts and Timbers:
1.	Grade: No. 2 Structural.
2.	Grade: Heart B.
3.	Grade: Construction Heart.
4.	Rough green.
5.	Surfaced four sides.
6.	Posts: 4 x 4.
7.	NOTE TO SPECIFIER ** Select post size required. Posts are typically 4 x 4 or larger (standard nominal sizes). Larger sizes are special order.
8.	Posts: 6 x 6.
9.	Posts: 8 x 8.
10.	Posts: 10 x 10.
11.	Posts: 12 x 12.
12.	Beams: 4 x 6.
13.	Beams: 4 x 8.
14.	Beams: 4 x 10.
15.	Beams: 4 x 12
16.	Beams: 6 x 8.
17.	Beams: 6 x 10.
18.	Beams: 6 x 12.
19.	Beams: 8 x 10.
20.	Beams: 8 x 12.
21.	Beams: 10 x 12.
22.	Length: 8 feet minimum.
23.	Length: 24 feet maximum.
2.3	DECKING
A.	Material: Redwood.
1.	Flame Spread per ASTM E84: Class B.
2.	California Building Code Chapter 7A: Materials and Construction Methods for Exterior Wildfire Exposure.
B.	Wood Decking:
1.	Grade: Heart B.
2.	Grade: Construction Heart.
3.	Grade: B Grade.
4.	Grade: Construction Common.
5.	Grade: Heart Clear.
6.	Grade: Clear.
a.	Size: 2 x 4.
b.	Size: 2 x 6.
c.	Length: 6 feet minimum.
d.	Length: 20 feet maximum.
7.	Support Spacing, Decking Perpendicular to Supports: 24 inches (2x6).
8.	Support Spacing, Decking Perpendicular to Supports: 16 inches (2x4).
9.	Support Spacing, Decking Diagonal to Supports: 16 inches (2x6).
10.	Support Spacing, Decking Diagonal to Supports: 12 inches (2x4).
2.4	SIDING
A.	Material: Redwood.
B.	Grade:
1.	Heart Clear.
2.	Heart B.
3.	Clear.
4.	B Grade.
C.	Texture:
1.	Surfaced.
2.	Saw-textured.
D.	Thickness: 1 inch, nominal.
E.	Width:
1.	4 inch, nominal.
2.	6 inch, nominal.
3.	8 inch, nominal.
4.	10 inch, nominal.
F.	Length:
1.	Length: 6 feet, minimum.
2.	Length: 20 feet, maximum.
G.	Siding Patterns:
1.	Bevel.
2.	Board and Batten.
3.	Rabbeted Bevel.
4.	Shiplap.
5.	Tongue and Groove.
H.	Pattern Number: Refer to Reference document, "Redwood Lumber Patterns No. 17".
2.5	LUMBER
A.	Material: Redwood.
B.	Grade:
1.	Construction Heart.
2.	Heart B.
3.	Heart Clear.
4.	Construction Common.
5.	B Grade.
6.	Clear.
C.	Surface:
1.	Rough.
2.	Surfaced Four Sides.
3.	Surfaced One Side, Two Edges.
D.	Sizes:
1.	1 x 2.
2.	1 x 4.
3.	1 x 6.
4.	1 x 8.
5.	1 x 10.
6.	1 x 12.
7.	2 x 2.
8.	2 x 4.
9.	2 x 6.
10.	2 x 8.
11.	2 x 10.
12.	2 x 12.
E.	Lengths:
1.	Length: 6 feet, minimum.
2.	Length: 20 feet, maximum.
2.6	FASTENERS
A.	Material: Stainless steel.
B.	Material: Hot-dip galvanized steel.
PART 3    EXECUTION
3.1	EXAMINATION
A.	Do not begin installation until substrates have been properly prepared.
B.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2	PREPARATION
A.	Clean surfaces thoroughly prior to installation.
B.	Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
3.3	INSTALLATION
A.	Install in accordance with manufacturer's instructions.
B.	Finish products in accordance with manufacturer's instructions.
C.	Use only corrosion resistant fasteners. Acceptable are stainless steel or hot-dipped galvanized nails.
D.	Joints shall fall over framing lumber and shall be double nailed. Do not nail any less than 1/2 inch from any edge and fasten at a minimum of every 24 inches on center.
E.	Drive nails perpendicular to the framing lumber and the wood product; drive nails flush with the product's surface. Nails shall penetrate at least 1-1/4 inches into the structural framing.
3.4	PROTECTION
A.	Protect installed products until completion of project.
B.	Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION