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Home My WebLink About2024 W 14th St Technical - BuildingTECI I\ ICAL 20214 L) \OA s\- -c, o YVQ- S 21 0 9 Upon reviewing your application and plans submitted for a Manufactured Home, the following are some of the items that will need to be taken in to consideration. Property Manufactured homes. The City of Port Angeles Building Division. Property boundary pins are to be identified and marked at footing inspection to verify minimum set back requirements. "Wains" installer tags must be on unit and appropriate box checked for each item completed. Manufactured home foundation design shall be included with the application. Foundations are required to be pit set with 12" maximum and 6" minimum reveal on foundation. Blocking and tie down inspection is required Wood framed skirting, framing shall be 2 "x 6" treated wood with 3 anchor bolts w/ 3 "x 3 "x 1/4" washer at 6' -0" OC and within 12" of P T sill ends. Stud pacing shall be 16" OC. 15/32" min thickness structural grade treated plywood 30 PCF equivalent -fluid weight soil pressure horizontal (max unbalanced back fill at 18" in height). Face grain across studs. Skirting, foundation crawl space and ventilation are required per WAC 296 -150M -0610 (1) (d) section 1 through 3. 1. Skirting must be made of approved material by the building division. Metal fasteners must be of hot dip zinc -galv stainless steel or other corrosive resistant materials. Ferrous metal members in contact with earth, except those made of galvanized or stainless steel, must be coated with asphaltic emulsion. Skirting must not trap water between the skirting and siding or trim. All skirting must be recessed behind the siding or trim. 2. The ventilation required is one (1) sf. Per 150 sf. of crawl space. 3. Access to under floor area to be a min. 18 "x 24" and positioned so that all areas under manufactured home are available for inspection. Access opening must be covered and that cover must be made of metal, pressure treated wood or vinyl. Foundation protection requires finish grade to be a minimum of 6" slope in 10' -0" away from the foundation. Footing /downspout drains (if required) to be directed to a drywell or other approved locations. An inspection of the water, sewer, electrical, footing and down spout drains is required before backfill is allowed. If outside of (4) minute response area a sprinkler system or an exterior bell tied into the smoke detector, approved by the Fire department may be required. A final inspection is required to be approved before occupancy c iiriatCRWORT .ANGELES Construction The Issuance of this permit based upon these plans specifi- cations and other data shall not prevent the building 01.iO4 31 from thereafter requiring the correction of errors in s aid pie specifications and other data, or from preventing building operation being carried on thereunder when in violation of all code and ordinance of this jurisdiction. [r- g iRtj ",�'j!�:.j '.J =.,'fCl:'t 3'.�.•.�.,, t".LJo.i'�' Zc�o hpprovai Date 22 -1 40 12.3y .JJ r I J de,00vevw Garages. A continuous footing is required around the perimeter of the load bearing walls, although some manufactured homes are designed to accommodate a garage. The garage must be designed as though it is independent from the manufactured home. Sill and bottom plate anchor requirements for seismic zone D2. As per the 2003 IRC. Garages detached and attached to a manufactured homes, require standard wall bracing methods to be met, If they cannot be met, then refer to "Alternate Braced wall panel" Section of the 2003 IRC. If any of the aforementioned methods cannot be met, engineering design will be required for the "SHEAR WALL, ALTERNATE BRACED WALL PANEL" design under 2' -8" in width. This letter is not intended to cover all items required by the City of Port Angeles, but is to serve as a guide to help you understand frequently asked questions, "ALL WORK IS SUBJECT TO FIELD APPROVAL" 1/05 2 -fort maximum 1 Single Strap 4725 lbs. Double Strap 4725 lbs.' Clove .3 see chart 6' 0" 7 i tlote t Unless listedflatieied for a higher capacity by the anchor manufacturer 2 Untess a greater spacing is specified 'by the anchor manufacturer S All homes located in Wind Zones -l1 and III shall have a vertical tie 2 -foot maximum Frame I /Anchor iJ V -6, Soil Type Based on the unified classification system Rcc or hard van Sandy gravel and gravel Sand, silty sand, clayey sand, silty gavel, or clayey travel Clay sandy clay, silty day, or clayey sift lJncompacted fill Peat or oroanic days Table 3-1 General Description of Soils Allowable Pressure (pounds per square foot) No -allowances made for overburden pressure, embedment depth, water table height, or settlement problems 4,000 and up 2,000 1,500 1 000 Special analysis is required Special analysis is required NOTE T. To be used only when none of the following is available: soils investigation and analysis of the site; compliance wfth the local bolding code; and evaluation by .a registered professional engineer, architect, or building official. 2. Hereafter, the words engineer' or "architecT shall refer to a registered professional engineer or architect. Place piers on both sides of side wall exterior doors and any other side wall openings greater than 4 feet (such as entry and sliding glass doors), under porch posts, fireplaces, and wood stoves; and under the locations where heavy pieces of furniture, such as pianos organs waterbeds, etc. are expected to be placed. 4.2 Footings Footings shall be placed a minimum of 4 inches below grade in undisturbed soil. Support every pier with a properly designed footing (see 4.2.1 1). 4.2.1 Acceptable types of footings 4.2.11 Concrete Footings may consist of precast or poured -in -place concrete, pads slabs, or ribbons at least 3 1 /2- inches thick, with a 28 -day compressive strength of at least 3,000 pounds per square inch. 4.2.1.2 Pressure-treated permanent wood Two layers of nominal 2 -inch thick pressure treated wood having 0.60 retention in accordance with AWPA C22 Standard, with the tong dimensions of the second layer placed perpendicular to that of the first, may also be used 4.2.1.3 Other materials Other materials approved for footings may be used when approved by local authorities if they provide equal load- bearing capacity and resistance to decay Examples include: 8 NCSBCS /ANSI A225.1 are not available. 4 1.5.3 Perimeter blocking 1/2 inch maximum crushed stone, 3/8 inch or 3/4 inch graduated gravel; coarse sand, with grains no smaller than 1/16 inch, placed so it provides a soil bearing capacity of at least 3,000 pounds per square foot. 4.9 .9 Placement in freezing climates 4.2.2.1 Conventional footings In areas subject to ground frost heave, place footings below the frost line Consult local authorities to determine the depth of the frost line In the absence of a local code use the frost penetration map provided in figure 4 -4 as a guide 4.2.2.2 Floating slab systems When properly designed by a registered professional engineer a 'floating slab system` may be used above the frost line. The design shall accommodate the anchorage requirements identified in 5 4.2.2.3 Insulated foundations Footings may also be placed above the frost line when the home is provided with a perimeter foundation or skirting having insulation properties sufficient to prevent freezing of the soil under or adjacent to every load- bearing component of the foundation and acceptable for this purpose to the authority having jurisdiction. Useful design guidelines may be found in the references found in Annex F Insulation systems should be compatible with the requirement to cross ventilate the entire space under the home 4.2.3 Proper sizing of footings Proper sizing of footings depends upon the load- carrying capacity of both the piers and the soil See table 4 -3 for recommended footing sizes. 4.3 Permanent foundations Check local building codes and regulations and consult a registered engineer when the home is to be sited on a permanent foundation (such as a full basement, crawl space or load bearing perimeter foundation) To obtain a permanent foundation design that meets most local codes, write to the manufacturer of the home. Useful ideas and design guidelines can also be found in reference publications, such as those listed in Annex F ru�av �vvfl Main beam Required perimeter support (see note 4) Frame support Figure 4-2 Typical blocking diagram for single section home when manufacturer's instructions are not available Note (applies to both figures 4-2 and 4-3) 1 See table 4.1 for required pier capacity and spacing. 2. See table 4.3 and section 4-2 to footing requirements. 3. Piers shall be located at a maximum of 2 feet from both ends_ 4. Place piers on both sides of entry doors and at any other openings greater than 4 feet in width. such as patio or atrium doors; under porch posts, fireplaces, and wood stoves: and under those places where heavy pieces of furniture such as pianos, organs, waterbeds, etc. may be placed. tit l Required perimeter support (see note 4) Patio door Front (hitch) Exterior door of home 8i Required perimeter support (see note 4) Exterior wall line of home r shall be sized according to table 4.2 or calou- lated by a design professional and located under the bearing points of clear -span openings in center mating wails 7 M 6 r T r 1 1 1 1 1 i 1 I I I I I i 1 1 I 1 1 1 I I. -L`- I 1 I 1 1 1 I I I I I 1 I 1 -'-1-..,1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I I I I I L'i Slide -out fireplace door of ome 1 I Exterior wall line of home Figure 4 Typical blocking diagram for multisection home when manufacturer's installation instructions are not available is J I Section I Width (feet) a- Follow down the 'Section Width° column to "14 feet." Follow across to "30 pounds per square foot" psf) in the °Roof Live Load column. Since the mating wall opening is 18 feet wide, follow across to e column headed "20." (For any opening width that is not shown, use the next highest number on he chart.) The required pier capacity is 5,400 pounds. :VCAMPLE: 14 -foot section width 30- pounds per square -foot roof live load 18- foot -wide mating -wall opening Roof Live Load (pounds per square toot) Table 4 -2 Minimum Pier Capacity Multisection Center- Beam Blocking Pier Load and Minimum Pier Capacity (pounds) Mating Wall Opening (feet) 5 I 10 15 I 20 I 25 30 35 8 20 600 1200 1800 2400 l 3000 3600 4200 30 800 1600 2400 3200 4000 4800 5600 40 1000 2000 3000 4000 5000 5000 7000 10 20 800 1500 2300 3000 3800 4500 5300 30 1000 2000 3000 4000 5000 6000 7000 40 1300 2500 3800 5000 6300 7500 8800 12 20 900 1800 2600 3500 4400 5300 6100 30 1200 2300 3500 4700 5800 7000 8200 40 1500 2900 4400 5800 7300 8800 10200 14 20 1000 2000 3000 4100 5100 6100 7100 30 1400 2700 4100 5400 6800 8100 9500 40 1700 3400 5100 6800 8400 10100 11800 16 20 1200 2300 3500 4700 5800 7000 8100 30 1600 3100 4700 6200 7800 9300 10900 40 1900 3800 5800 7500 9700 11600 13600 Roof Section Live Pier Width Load Location (feet) (pounds per square foot) 8 10 12 14 16 18 Frame Plus Perimeter Blocking (Both Frame and Perimeter Blocking Required) 4 I 6 20 Frame 900 1300 Perimeter 600 800 30 Frame 900 1300 Perimeter 700 1100 40 Frame 900 1300 Perimeter 900 1300 20 Frame 1100 1700 Perimeter 700 1100 30 Frame 1100 1700 Perimeter 900 1400 40 Frame 1100 1700 Perimeter 1100 1700 20 Frame 1300 1900 Perimeter 800 1200 30 Frame 1300 1900 Perimeter 1100 1600 40 Frame 1300 1900 Perimeter 1300 1900 20 Frame 1500 2200 Perimeter 900 1400 30 Frame 1500 J 2200 Perimeter 1200 1800 40 Frame 1500 2200 Perimeter 1500 2200 20 Frame 1700 2600 Perimeter 1100 1600 30 Frame 1700 2600 Perimeter 1400 2100 40 Frame 1700 2600 Perimeter 1700 2600 20 Frame 1900 2900 Perimeter 1200 1800 30 Frame 1900 2900 Perimeter 1600 2400 40 Frame 1900 2900 Perimeter 1900 2900 Minimum Pier Capacity (pounds) Maximum Pier Spacing (feet) I 8 I 10 i 1800 2200 1100 1400 1800 2200 1400 1800 1800 2200 1800 2200 2200 2800 1400 1800 2200 2800 1800 2300 2200 2800 2200 2800 2600 3200 1600 2000 2600 3200 2100 2600 2600 3200 2600 3200 3000 3700 1900 2400 3000 3700 2400 3000 3000 3700 3000 3700 3400 4300 2200 2700 3400 4300 2800 3500 3400 4300 3400 4300 3900 4800 2500 3100 3900 4800 3200 3900 3900 4800 3900 4800 Single-section Multisection DO- Crown and grade the site to slope away from the home and cover it with 6-mil-thick polyethylene sheeting or the equivalent. DON'T Grade the site so that water collects beneath the home Figure 3-2 Elimination of water beneath the home LA\ t? J3 11E Hu, EiniEEmc Gross Drive Rock Anchor MRA Engineered for ln5taliation into Solid rock within 1 in. from bottom of the anchor base. Lxact alignment is achieved with the swivel tensioning head. Drill 518' diameter hole s 112' deep in center of anchor location Insart pnor stud Into hole. Drill two 3,4` diameter holes into the rook at 45" angics, using the anchor tread as a locating guide Place rod through top and corresponding bottom web flange and into 45' hole. Drive rod Into rock. Rea must be driven Into rock at least 80,b of its length to achiev =e minimum allowable pullout rosistante Repeat using 2ntl rod Maximum pullout resistance Is developed when ground surface is solid rock A4axlmurn distance inn luaest edge of anchor flange to rack 5urfaa is 1 let. Pa rni smp when Avis, JAN 2 4 TOtri h Y r r Cxhrhea 1 vG G� s w .li,o w 7+r r lAnhla angle mooeeie 48° wn seidlrJanal 14. frame clamp Moat) avert be attached to s a I the nppowt.0 from s l,te/140 d iv the darted Ili, .r 6rowld K.erel A 5Fab1@:er rigs fault bs Idealisd t err frame Ilea. (pr aloarnai6c method Of srtabIlGdna pr0imd a »char.) Jalaa proar anehar for *0 ed i R*.ic urlln8 VW Sell Teta Pmba. Strap Buckle o MBU Next, thread long and of strap between 1r'arne and floor of home Bring Strap through buckle as shown In diagram slid fasten to anchor head. 'I.. XePlato Anchor "i" D0111P9 FPaitid I,FANN 34 U4UI X- Plate for Soli Class 2 2 23/32" x 30" rods InCludod. Part 59118 Thread 7' length of Tahiti tie Strap through strap buckle as shown. tin Diagram shows strap i fl position around frame and through buckle. It iS important to remove ail stack from system. Frame Tie to Anchor If the angle of the frame tie connection is greater than 45° (as indicated try the dattcd line Illustration Oct*, an addi- tional frame tie must be attached to the opposite "I" beam frame member TIE DOWN ENGINELRltN� 5901 Wheaton Drive Atlanta GA `.30336 OWN fA1L(1$r111gp' sr