Ordinance No. 2015 - * Subject: Building Code - To Amend Chapter 203 of

the Curla of St, Mary's Curmty, Maryland, to Adopt Local Amendments to the Maryland Building Performance Standards

Page 1 of 16

ORDINANCE

TO AMEND CHAPTER 203 OF THE CODE O F ST. MARY'S COUNTY, MARYLAND, TO ADOPT LOCAL AMENDMENTS TO THE MARYLAND BUILDING PERFORMANCE STANDARDS

WHEREAS, 5 13-906 of the Local Government Article of the Annotated Code of Mavyland enables the Commissioners of St. Mary's County to adopt, amend and enforce a build~ng code to provide for the construction, ma~ntenance and repair of any and all buildings and structures located rn or to be located in St. Mary's County, and

WHEREAS, pursuant to 512-503 and $12-505 of the Public Safeety Article of the Annotated Code of Maryland, the Maryland Budding Performance Standards apply to each burlding or structure in the State, and each local jurisd~ct~on 1s required to enforce the most current version of the Standards and any local amendments to the Standards; and

WHEREAS, pursuant to 5 12-503 of the Public Safety Article of the Annofated Code of Maryland, the State of Maryland adopted, effectlve as of January 1, 20 15, the 20 15 versions of the International Building Code (heremafter "IBC"), ~ncluding the International Residential Code for One- and Two-family Dwellings (hereinafler "IRC") and the International Energy Conservation Code (hereinafter "IEEC"), with the nlodifications incorporated by the Maryland Department of Housing and Comrnunrty Development, as the Maryland Building Performance Standards; and

WHEREAS, pursuant to 8 12-504 of the Public Safety Article of the Annotated Code of Maryland, local jurisdictions may adopt amendments to the Maryland Building Performance Standards; and

WHEREAS, the Comm~ssioners of St. Mary's County held a public hearing on June 9, 2015, for the purpose of receiving public testimony and to consider local amendments to the Maryland Budding Performance Standards after not~ce was published in the Enterprise, a local newspaper of general circulation in St. Mary's County, Maryland, on May 22, 2015, and May 29,2015; and

WHEREAS, the Comn~issioners of St. Mary's County finds that amendments to Maryland Budding Performance Standards would be in best ~nterest of the health, safety and welfare of the citizens of St. Mary's County,

Ordinance No. 2015 - -G Subject: Building Code - To Amend Chapter 203 of

the Code of St. Mary's County, Maryland, to Adopt Local Amendments to the Maryland Building Performanee Standards

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NOW THEREFORE, BE IT ORDAINED by the Cornmissloners of St. Mary's County, that:

SECTION I. Chapter 203, Sec 203-1 1 of the Code of St. Mary S Cozmty is amended to read as follows:

Sec. 203-1 1. - Adoption of standards.

The Maryland Building Performance Standards, as amended by the State of Maryland (COMAR 05.02.07), is amended to read as follows:

-04 Incorporation by Reference.

A. In this chapter, the following documents are incorporated by reference:

( I ) 201 5 International Building Code (International Code Council, 500 New Jersey Avenue, N. W., 6th Floor, Washington, DC 20001 );

(2) 20 15 International Residential Code for One- and Two-Family Dwellings (International Code Counc~l, 500 New Jersey Avenue, N.W., 6th Floor, Washington, DC 2000 1); and

(3) 201 5 International Energy Conservation Code (International Code Council. 500 New Jersey Avenue, N.W., 6th Floor, Washington, DC 20001).

The 2015 Maryland Buildzng PerSormance Standards, as amended in Section 203-1 2 and Section 203- 13, are adopted as the St. A4ary1.r County Building Code.

SECTION IT. Chapter 203, Sec. 203-12 of thc Code of St. Mary's County is amended to read as follows:

The following sections (retain~ng any subsections, tables and figures not specifically enumerated) and thc followrng specifically enumerated subsections of the 2015 Internatlonal Buzldrng Code are amended as follows

[A] 101.1 Title. Insert St Mary's County

[A] 102.1 Appendices. [Add:] The following appendices are adopted:

APPENDIX C GROUP U - AGRICULTURAL BUILDINGS

Ordinance No. 2015 - 26 Subject: Building Code - To Antend Chapter 203 of

the Code of St. Mary's County, M q l m d , to Adopt Local Amendments to the lMaryland Building Performance Standards

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[A] 101.4.5. Fire prevention. The State of Maryland Fire Code and Maryland Life Safety Code WFPA I and NFPA 101, as amended from tlme to time) shall apply

[A] 102.6 Existing structures. The Maryland State Fire Code and Maryland Life Safety Code (NFPA 1 and NFPA4 101, as mended from time to time) shall apply.

[A] 103.1 Enforcement. The Department of Land Use and Growth Management shall have the duty and authority to enforce the provisions herein.

[A] 105.2 Work exempt from permit,

Building:

1 . One-story detached accessory structures used as tool and storage sheds, playhouses and sirnilar uses, provided it is not greater than 300 square feet and the structure is not located in the flood plaln.

2. Fences not over 12 feet (3657 6 mm) High

14. Agriculture building.

[A] 105.2.2 Repairs. Application or notice to the building official is not required for ordinary repairs to structures, replacement of lamps or the connection of approved portable electrical equipment to approved permanently installed receptacles. Such repairs shall not include the cutting away of any wall, part~tion or portion thereof, the removal or cutting of any structural beam or load-bearing support or the removal or change of any required means of egress, or rearrangement of parts of a stmctwe affecting the egress requirements; nor shall ordinary repairs include addition to, alteration of, replacement or relocation of any standpipe, water supply, sewer drainage, drain Icadcr, gas, soil, waste, vent or similar piping electric wiring or other work affecting public health or general safety.

[A] 105.3 Application for permit. 'To obtam a permit, the appl~cant shall first file an appl~cat~on therefor in writing on a form furn~shed by the Department of Land Use and Growth Management for that purpose Such appllcatlon shall.

1 Ident~fy and descrlbe the work to be covered by the permit for which appllcatlon IS made

2 Descnbe the land on which the proposed work is to be done by legal descrlptlon, street address or s~milar descrlptlon that wlll readily IdentlEy and definitely locate the proposed burldlng or work

3 Indicate the use and occupancy for whlch the proposed work 1s Intended 4 Be accompanied by construction documents and other lnformat~on as required in

Sectron 107

Ordinance No. 2015 - Subject: Building Code - To Amend Chapter 203 of

the Code of St, Mary's Counfy, Mayland, to Adopt Local Amendments to the Maryland Building Performsnce Standards

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[A] 105.3.2 Time limitation of application. An application for a permit for any proposed work shall bc deemed to have been abandoned 12 months after the date of filing, unless such application has been pursued in good hith or a pennit has been issued; except that the buildlng official is authorized to grant one extension of time for an addltlonal period of 12 months. The extcnsion shall be requested in writing and justifiable cause demonstrated.

[A] 105.5 Expiration. Every permlt ~ssued shall became ~nvalid unless the work on the s ~ t e authorized by such permit is comn~enced wlthln 12 months after its msuance, or if the work authar~zed on the site by such permlt is suspended or abandoned for a period of 12 manths after the t ~ m e the work IS commenced The bullding official 1s authorized to grant, In wrltmg, one extension of t ~ m e for an add~tlonal per~od of 12 months. The extension shall be requested in writing and just~f~able cause demonstrated

[A] 105.7 Placement of permit. 'l'he building permit placard shall be posted on the site of the work until the completion of the project.

[A] 107.2.4 Exterior wall envelope, Construction documents for all buildings shall descrtbe the exterior wall envelope in sufficient deta~l to determine compliance with this code. The construction documents shall provide details of the exterior wall envelope as requ~red, including flashing, ~nterscctions w ~ t h dissimilar materials, corners, end details, control joints, intersections at roof, eaves or parapets, means of drainage, water-resist~ve membrane and details around openings

[A] 107.2.5 Site plans. The construction documents submitted with an application for a permit shall be acconipmied by a site plan conforming to the requirements of the St. Mary S County Comprehensive Zoning Ordinance

[A] 109.6 Refunds. [Deleted.]

[A] 110.3.1 Footing inspection. The footing ~nspection is to be performed prior to placing concrete to verifjr depth, width, soil bearing capacity, reinforcement and location on a lot for all structures and bu~ld~ngs

[A] 110.3.2 Concrete foundation wall inspection. The concrete foundation wall inspection shall be made prlor to placing concrete, when the forms are placed on eke footing and reinforcing steel, structural straps, and ~mbeds are In place. When the foundation is to be constructed of approved treated wood, addrtronal rnspectlons may be required.

[A] 110.3.3 Slab inspection, The slab inspection is to be performed prior to placement of concrete on all slabs for habitable and .condlt~oned space, and for all basements, to ver~fy base preparation, slab thickness, relnforcetnent, drainage system, underground plumb~ng, lnsulatton for walk out basements, habitable and condltloned space

Ordinance No. 2015 - g6- Subject: Building Code - To Amend Chapter 203 of

the Code of St. Mary's County, Marylund, to Adopt Local Amendments to the Maryland Building Performance Standards

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[A] 110.3.4 Foundation (Steel) inspection. The foundation inspectron is to be performed prior to placement of concrete in the foundation wall forms to ver~fy that the forms are properly located on the footmgs, the relnforc~ng IS properly placed and secured, to venQ the height and thtckness of walls, and to verify the size and location of openings Including flood equaltzat~on vents when requtred

[A] 110.3.5 Foundation backfill inspection. 'The foundation backfill inspection is to be performed on ail foundation walls with habitable or usable space prior to back filling with acceptable soil to verify drainage and water proofing systems. A foundation inspection is also performed on all foundations in the regulated flood plain to verifL compliance with NFIP and FEMA standards

[A] 110.3.6 Framing inspection. The framing inspection is to be performed after all plumbing/gas, mechanical, electrical work has been roughed-in, all interior framing draWfire stopp~ng, exterior doors and windows have been installed and the structure IS

weather tight. Exception: decks and detached accessory structures without plurnbrng or electric on the condition that all framing is vlsible at time of final inspection.

[A] 110.3.7 Structure tie down inspection, The structure tie down inspection is to be performed before the exterior finishes are applied (vlnyl siding, wood slding, bnck, stucco) unless the tie downs are installed in the interlor of the structure. The tie downs must be placed within 12 inches of each corner and max~murn of cvery 48 ~nches on center for the roof truss/rafter down to the footing. Tie downs must be rated at 1,000 Ibs. minimum per connection, llsted and approved for such application.

[A] 110.3.8 Insulation inspection. The insulation inspection is to be performed when all insulation, vapor barriers, caulking and weather stripping is in place. Exception: structures, which are exempt from Chapter 13.

[A] 110.3.10 Final inspection. [Add:] Proper posting of E-911 address shall be installed and verified at this time.

SECTION 202. DEFlNI.TIONS

Agriculture Building. Any bulldlng used In Agr~culture, defined as the use of land for the production and primary processing of food and fibers for sale, ~ncluding cultlvatlng, dairy~ng, hort~culture, pasturing, flor~culture, s~lverculture, viticulture, an~rnal and poultry husbandry, and such incidental accessory facllities such as greenhouse and nurseries,

provlded that the operation of such accessory facllities shall clearly be secondary to normal agr~cultural acttvlt~es Agr~culture includes, but IS not limlted to, the related activltles of tlllage, fertlllzat~on, pest control, harvesting, and rnarketlng It also includes, but rs not I~mlted to, the actlvltles of feedlng, houslng, and malntalning animals, such as cattle, da~ry cows, sheep, goats, hogs, horses, and poultry and handl~ng thetr by-products

Ordinance No. 201% & Subject: Building Code - To Amend Chapter 203 of

the Code of St. Mary's County, Maryland, ro Adopt Local Amendments to the Maryland Building Performance Standards

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[Add:] Duplex. A structure having two attached dwelllng units

Lot. A "Lot" as defined in the St. Mary 3 County Comprehensive Zoning Ordinance.

1301.1.1 Criteria. Buildings shall be designed and constructed in accordance with the 20 15 International Energy Conservation Code.

1809.5 Frost protection. Except where otherwise protected from frost, foundations and other permanent supports of buildings and structures shall be protected from Cost by one or more of the following methods.

1 Extending below the fiost line (20 inches below grade) to bottom of foot~ng, 2. Constructing In accordance with ASCE 32, or 3 . Erect~ng on solid rock

Exception: Free-standing build~ngs meeting all of the following conditions shall not be requlred to be protected

1. Assigned to Risk Category I, in accordance with Section 1604.5; 2. Area of 300 square feet or less for light-fiame construction or 300

square feet or less -For other than light-frame construction; and 3. Eave height of 10 feet (3048mni) or less.

Shallow foundations shall not bear on frozen soil unless such frozen condition i s of a permanent character.

3103.1 General. The provisions of Sections 3103.1 through 3103.4 shall apply to a structure erected for a period of less than 180 days. Tents and other membrane structures erected for a period of less than 180 days shall comply with the State of Maryland Fire (NFPA 1) and Life Safety Cade (NFPA 101). Those erected for a longer period of time shall comply with applicable sections of this code.

3103.1.1 [Deleted.]

3103.1.2 Permit required. Temporary structures that cover an area greater than 300 square feet, ~ncluding connecting areas or spaces with common means of egress or entrance which are used or intended to be used for the gather~ng together of 10 or more persons, shall not be erected, operated or maintained for any purpose wrthout a permit from the bu~ld~ng official

SECTION 3107. [Deleted.]

Ordinance No. 2015 - & Subject: Building Code - To Amend Chapter 203 of

the Code of St. Mary's County, Maryland, to Adopt L,ocoll Amendments to the Maryland Building Performance Standards

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SECTION 111. Chapter 203, Sec 203-13 of the Code of St. Mary's Count;v is amended to read as follows.

The follow~ng sections (retaming any subsections, tables and figures not specifically enumerated) and the following specifically enumerated subscctions and tables of the 2015 Internutional Residentla1 Code for One- and Two- Family Dwellings are amended as follows:

RIO1.l Title. [Add] St. Mary" County

R102.5 Appendices. [Add: J The following appendices are adopted.

APPENDIX E MANUFACTURED HOUSING USED AS DWELLINGS

R102.7 Existing structures. The legal occupancy of any structure existing on the date of adoption of this code shall be permitted to continue without change, except as specifically covered in this code or otherwise provided by law.

R103.1 Enforcement. The Department of Land Use and Growth Management shall have the duty and authority to enforce the provisions herein.

R105.2 Work exempt from permit.

Building:

1. One-story detached accessory structures, provided that it does not exceed 300 square feet (27.87 square meters)

Fences not over 12 feet (3657.6 rnm) high,

7. Above-graund swirnm~ng pools

10 Dccks not exceed~ng 300 square feet rn area, that are not more than 30 ~nches above grade at any point, are not attached to a dwelling and do not serve the exit door requlred by Sect~on R3 1 1 4

(Add:] 1 1. Agriculture buildings.

R105.3 Application for permit. To obtain a permit, the applicant shall first file an application therefor in writing on a form furnished by the Department of Land Use and Growth Management for that purpose. Such application shall:

1 Identi@ and describe the work to bc covered by the permit for which application is made.

Ordinance No. 2015

Subject: Building Code - To Amend Chapter 203 of the C o t of St. Mag's Couniy, Maryland, to Adopt Local Amendments to the Mrryland Building Performance Standards

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2 Describe the land on wh~ch the proposed work IS to be done by legal descrtptlon, street address or slmllar description that wrll readily ~dentify and definitely locate the proposed burldlng or work.

3 Ind~cate the use and occupancy for which the proposed work is Intended 4 Be accompan~ed by construction documents and other infomatton as requrred In

Sectlon R106 1

R105.3.2 Time limitation of application. An applicat~on for a permlt for any proposed work shall be deemed to have been abandoned 12 months after the date of filing, unless such applicat~on has been pursued in good faith or a permit has been issued, except that the building official IS authorized to grant one extension of time for an add~tional period of 12 months. The extension shall be requested In writ~ng and just~fiable cause demonstrated.

R10S.5 Expiration. Every penii~t ~ssued shall became lnval~d unless the work on the site authorized by such perm~t 1s commenced within 12 months after its issuance, or if the work authorized on the site by such perm~t is suspended or abandoned for a period of 12 months after the time the work is commenced The build~ng official is author~zed to grant, In wrltlng, one extens~on of time for an additional period of 12 months. The extension shall be requested in writing and justifiable cause demonstrated.

R10S.7 Placement of permit. The building permit placard shall be posted on the site of the work until the completion of the project.

R106.1.1 Information on construction documents, [Add:] A floor plan shall be provided to show room locations and uses.

R108.5 Refunds. [Deleled. ]

R109.1.1 Footing inspection. Footlng ~nspections are to be performed prror to placrng concrete to verlfy depth, width, soil bear~ng capac~ty, rernforcement and location on a lot for all structures and bulldings Exception Swimming pools

R109.1.2 Concrete foundation wall inspection. The concrete foundation wall lnspectron shall be made, prior to placing concrete, when the forms are placed on the footing and, reinforcing steel, structural straps, and Imbeds are in place, When the foundation is to be constructed of approved treated wood, additional inspections may be required.

R109.1.3 Slab inspection. 'The slab inspection is to be performed prior to placement of concrete on all slabs for habitable and conditioned space and all basements to verif) base preparation, slab thickness, reinforcement, drainage system, underground plumbing, and insulation for walk out basements, habitable and conditioned spaces

Ordinance No. 2015 -a Subject: Building Code - To Amend Chapter 203 of

the Code of St Mary's County, Mqland , to Adopt l ~ c a l Amendments to the Maryland Building Performance Standards

Page 9 of 16

R109.1.4 Foundation (Steel) inspection. The foundation inspection is to be performed prior to placement of concrete in the foundation wall forms to verify that the forms are properly located on the footings, the reinforcing is properly placed and secured, to verifjl the he~ght and thickness of walls, and the size and location of openings including flood equalrzation vents when required

R109.1.5 Foundation backfill inspection. The foundation backfill inspection is to be performed on all foundation walls with habitable or usable space, prior to back filling with acceptable so11 to verifjr drainage and water proofing systems A foundation inspection 1s also performed on all foundations in the regulated flood plain to verifjr compliance with NFIP and FEMA standards.

R109.1.6 Framing inspection. The framing inspection is to be performed after all plumbinglgas, mechanical, electrical work has been roughed-in, all interlor Eraming draft-lfire stopplng exterior doors and windows have been Installed and the structure is weather tight. Exception: decks and detached accessory structures wit~out plumbing or electr~c on the condrtlon that all framing IS v~sible at time of final inspection.

R109.1.7 Structure tie down inspection, The structure t ~ e down inspection IS to be performed before zhe exterior finishes are applied (vlnyl slding, wood sidlng, br~ck, stucco) unless the tre downs are ~nstalled in the Interior of the structure. The tie downs must be placed wlthln 12 inches of each corner and maximum of every 48 inches on center for the roof truss/rafter down to the footing. Tie downs must be rated at 1,000 Ibs lninimum per connection and llsted and approved for such applrcation

R109.1.8 Insulation inspection. Thc insulation inspection is to be performed when all insulation, vapor barriers, caulking and weather stripping are in place.

R109.1.10 Final inspection. ARer "completed " Proper posting of E-911 address shall be ~nstalled and verified at thrs t ln~c

Rl12.2.1 Determination of substantial improvement in areas prone to flooding, [Delered.]

R112.2.2 Criteria for issuance of a variance for areas prone to flooding, [Deleted.]

SECTION R202.

[Add:] Duplex. A structure having two attached dwelling units.

Lot. A "Lot" as defined in the St. Mary's County Comprehensive Zoning Ordinance.

Ordinance No. 2015 - & Subject: Building Code - Ta Amend Chapter 203 of

the Code of St Mary's County, Maryland, to Adopt Local Amendments to the Maryland Building Performance Standards

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TABLE R J O I . Z ( I )

CLIMATIC AND GEQGRA PHIC DESIGN CRITERIA

TABLE R302. I ( I )

[Deleted. J

TABLE R302.1(2)

[Deleted,]

I EX ~ W O R WALL ELEMENT

Fire-res~stancerated

I or SI I foot = 304 8 mm NIA = NutAppll~ilblc a For rrtsldenl~al rubd~vislure where all dwellmngs nrr equipped rllroitghout urth an uutrrmanc vprlnklcr srslem ~nstalled ul itccorddllfe wth Section PZW4 !he fire sepmurrun rlrsruncr for nnnrdlod exterror walls d1K1 rated projectlow shall be prmittcd to bereduced to O feet erl unl~m~~ltcd unprulc~ted o p n ~ n y r tin3 pemtratrons sllall be ptmltted, uhere the adjoining 101 pmvrdes dn o p e n s e t k k yard that IS 6 lael or more in \srdth on Ihe opposite SI& ofthe properly IIIIC b The roof edvo fire-resrsiance rating shall bt? p c r m ~ ~ l e d to be reduced to O hours on the understrle a t thc cave IC

fireblrzking 18 prov~ded from the wall top plate to the undrrsrdo ol the roof shcafhrng c The roof eave fire rzsistance racing shall he perm~~ted to tx reduced 10 0 huum on the ur~dcmrde of the cave provided \ha1 gable vent olxnrngs arc not rnstalled

R302.5.1 Opening Protection. Opcnlngs from a pr~vate garage dlrectly Into a roam used for sleeping purposes shall not be perm~tted Other opcn~ngs between the garage and residence shall be equ~pped with solid wood doors not less than 1 3/8 inch (35mm) In thickness, solid or honeycomb steel doors not less than 1 3/8 inch (35 mm) in thickness, or 20 rnlnute fire-ratcd door.

Ordinance No. 2015 - Subject: Building Code - To Amend Chapter 203 of

the Code of St Mary's County, Mdlryland, to Adopt Local Amendments to the Maryland Building Performance Standards

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R303.4 Mechanical Ventilation, [Deleted]

R307.1 Space Required. [Deleted]

Table H307.1 Space required. [Deleted]

R311.7.5.1 Risers. The maximum rlser height shall be 8% inches (209.72 mm). The riser shall be measured vertically between leading edges of the adjacent treads, The greatest riser height within any fllght of stairs shall not exceed the smallest by more than 318 inch (9.5 mm) Risers shall be vertical or sloped fi-om the underside of the nosing of the tread above at an angle not mare than 30 degrees (0 5 1 rad) from the vertical. Open risers are permitted provided that the openlng between treads docs not permlt the passage of a 4-inch-diameter ( 1 02 mm) sphere

Exceptians: 1 . The opening between adjacent treads is not limited on spiral stairs. 2 . The riser height of spiral stalrs shall be in accordance with Section R3 1 1.7.10.1

R311.7.5.2 Treads. The minimum tread depth shall be 9 inches (228.78 mm). The tread depth shall be measured horizontally between the vertical planes of the foremost projection of adjacent treads and at a right mgle to the tread's leading edge. The greatest tread depth within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm).

[Add:] 3, Exterior handratls may have a maximum nominal dimension of 2" x 8" lumber.

R312.1.1 Where required. Guards shall be located along open sided walking surfaces, including stairs, ramps and landings that are located more than 30 inches (762 mm) measured vert~cally to the floor or grade below.

R312.2 Window Fall Protection. Where w~ndow fall protection devices are provided, the dev~ce shall be installed In accordance w ~ t h 3 12.2 1

R312.2.1 [Deleted.]

R313.2 One- and two-family dwellings automatic fire systems. An automatic residential fire sprinkler system shall be rnstalled in one and two-family dwellings.

Ordinance No. 2015 -

Subject: Building Code - To Amend Chapter 203 of the Code MSt. Mary's County, Maryland, to Adopt Local Amendments to the Maryland Building Performance Standards

Exception:

1. An automatic residential fire sprinkler system shall not be required for addition or alterations to exist~ng bulldings that are not already provided with an automatic residential sprinkler system.

2. An automatic residential fire sprinkler system shall not be required for one and two family dwellings that are:

(a) property not connected to an elcctr~cd util~ty, or (b) unt~l January 1. 201 6, a new onc- or two-fam~ly dwelllng constructed on.

I a lot subjcct to a valid unexp~red pubt~c works utllity agreement that xvas executed before March 1,20 1 1. or a lot served by nn ex~s t~ng water service line from a cvatcr maln to the property l~nc that. A rs less than a noininal 1 -1ncI2 size, f3 IS approved and owned by the publlc or private water

system that owns tht: mains, C was ~nstalled before March I , 20 1 I . and D 1s fully operaf~onal from the publrc or prtvate main to a

curb stop or meter pit located at the property llne.

R324.7.2.2 Hip roof layouts. Panels and rnodulcs installed on dwellings with hip roof layouts shall be located in a manner that provides a clear access pathway not less than 3 feet (914 mm) in width from the eave to the ridge on each roof slope where panels and modules are located The access pathway shall be located along the structural members of the roof framing to support any person accessing the roof.

Exception: These requirements shall nut apply to roofs with slopes of 2 units vertical in 12 un~ts horizontal ( 16.6 percent) and less

R324.7.2.5 [Deleted.]

R325.5 Openness. Mezzanines shall be open and unobstructed to the room in which they are located except for walls not more than 36 inches (914 rnm) in heighf columns and posts.

Ordinance No. 2015 - Zfih Subject: Building Code - To Amend Chapter 203 of

tbe Code of Sf. May's Counq, Maryland, to Adopt Local Amendments to the Maryland Building Performance Standards

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K403.1.6 Foundation anchorage. Wood sill plates and wood walls supported directly on continuous foundations shall be anchored to the foundatlon in accordance with this section.

Cold-formed steel framing shall be anchored directly to the foundation or fastened to wood sill plates anchored to the foundation Anchorage of cold-formed steel framing and sill plates supporting cold-formed steel framlng shall be in accordance with this sectlon and Sect~on R505.3.1 or K603.3 1

Wood sole plates at all exterior walls on monolithic slabs, wood sole plates of braced wall panels at bullding lnter~ors on monolithic slabs and all woodsill plates shall be anchored to the foundatlon with mrnlmurn 112-inch diameter (12.7 mm) anchor bolts spaced a maximum of 6 feet (1829 mm) on center or approved anchors or anchor straps spaced as requlrcd to prov~de equivalent anchorage to 112-inch-diameter (12 7 mm) anchor bolts. Bolts shall extend a minimum of 7 inches (178 mrn) into concrete or grouted cells of concrete masonry un~ts. The bolts shall bc located in the rn~ddle third of the wtdth of the plate A nut and washer shall be tightened on each anchor bolt There shall be a minimum of two bolts per plate section with one bolt located not more than 12 ~nches (305 mm) or less than seven bolt diameters from each end of the plate section

Interior bearing wall sole plates on lrmonol~thic slab foundations that are not part of a braced wall panel shall be pos~trvcly anchored with approved fasteners Sill plates and sole plates shall be protected against decay and tertn~tes where requlred by Sections R3 17 and R3 18.

Exceptions:

1 . Walls 24 inches (610 mm) total length or shorter connecting offset braced wall panels shall be anchored to the foundation with a minimum of one anchor bolt located in the center th~rd of the plate section and shall be attached to adjacent braced wall panels at corners as shown in Item 9 ofTable R602.3(1).

2 Connection of walls 12 snches (305 mm) total length or shorter connect~ng offset braced wall panels to the foundation without anchor bolts shall be permitted. The wall shall be attached to adjacent braced wall panels at corners as shown In ltem 9 of Table R602 3(1).

3 Wherc the basic wind speed inn accordance with Figure R30 1.2{41A does not exceed 1 15 miles per hour (5 1 d s ) , the seismic design category is A or B and Method GB in accordance with Section R602.10 is used for a braced wall line on the interior ofthe dwelling, anchor bolts shall not be required for the wood

Ordinance No. 2015 - & Subject: Building Code - To Amend Chapter 203 of

the Code of St May's County, Matylmii, to Adopt Local Amendrneilts to the Maryland Building Perforrnanre Standards

sale plates of the braced wall panels. Positive anchorage with approved fasteners shall be provided.

R405.1 Concrete or masonry foundations, Drains shall be provrded around all concrete or masonry foundations that retam earth and enclose habttabic or usable spaces located below grade Drainage tiles, gravel or crushed stone drains, perforated plpe or other approved systems or materials shall be installed at or below the area to be protected and shall discharge by grav~ty or mechanical means Into an approved dralnage system. Gravel or crushed stone drarns shall extend at least 1 foot (305 mm) beyond the autslde edge of the footing and 6 lnches (152 mm) above the top of the footing and be covered w ~ t h an approved filter membrane materral The top open jolnts of drain tiles shall be protected wrth strips of bu~ldlng paper Perforated drarns shall be surrounded wlth an approved filter membrane or the filter membrane shall cover the washed gravel or crushed rock covering the drain Drainage trles or perforated pipe shall be placed In a rnlnlmurn of 2 inches (5 1 mm) of washed gravel or crushed rock at least one sieve slze larger than the t ~ l e ~ o ~ n t openlng or perforation and covered wlth not less than 6 lnches (152 mm) of the same material.

R405.2.3 Dr~inage system. In all sorls, a sump shall be provrded to drain the porous layer and footings The sump shall be at least 24 ~nches (61 0 mm) in dlametcr or 20 inches square (0.01 29 m2), shall extend at least 24 inches (610 mrn) below the bottom of the baselllent floor and shall be capable of posstlve grav~ty or mechanical dralnage to remove any acc~~mulated water The drainage system shall discharge into an approved sewer system or to daylight.

R40G.2 Concrete and masonry foundation waterproofing. All exterlor foundation walls that retam earth and enclose rnterlor spaces and floors below grade shall be waterproofed from the top of the footlng to the finished grade Walls shall be waterproofed in accordance wlth one of the following. 1 Two-ply hot-mopped felts 2 Fifty-five-pound (25kg) roll roofing 3 SIX-mil (0 15 mm) polyvinyl chlorlde 3 Six-rnll (0 15 mm) polyethylene 5. Forty-m11 ( I rnm) polymer-rnodlfied asphalt 6 S~xty-m~l (1 5 mm) flex~ble polymer cement. 7 One-elghth-inch (3 nzm) cement-based, fiber-re~nforced, waterproof coatlng 8 S~xty-mil (0 22 mm) solvent-free liquid-applied synthetic rubber

Exception: Organic-solvent-based products such as hydrocarbons, chlor~nated hydrocarbons, ketones and esters shall not be used far ICF walls with expanded polystyrene form mater~al Use of plastic roofing cements, acrylic coatings, latex

Ordinance No. 2015 - 4 Subject: Building Code - To Amend Chapter 203 of

the Cede of St; Muty's County, Magiand, to Adopt Local Amendments to the Maryland Building Performance Standards

Page 15 of 16

coatings, mortars and pargings to seal ICF walls is permitted. Cold-setting asphalt or hot asphalt shall conform to type C of ASTM D 449. Hot asphalt shall be applied at a temperature of less than 200°F (93'C).

All joints In membrane waterproofing shall be lapped and sealed with adhesive compatible with the membrane.

R502.1.1 Sawn lumber: Sawn lumber shall be identified by a grade mark of an accredited lumber grading or inspection agency and have design values certified by an accreditation body that complies with DOC PS 20. In lieu of a grade mark, a certificate of inspection issued by a lumber grading or inspection agency meeting the requirements of this section shall be accepted. A grade mark or certification is not required for owner-occupied construction if the lumber is cut full size and the construction otherwise complies with this code.

R602.1.1 Sawn Lumber: Sawn lumber shall be identifled by a grade mark of an accredited lun~ber grading or inspection agency and have design values certified by an accreditation body that complies wlth DOC PS 20. In lieu or a grade mark, a certificate of inspection issued by a lumber grading or inspection agency meeting the requirements of this section shall be accepted. A grade mark or certification is not required for owner-occupied construction if the lumber is cut full slze and the construction otherwise complies with this code

R802.1.1 Sawn Lumber: Sawn lumber shall be identified by a grade mark of an accredited lumber grading or inspection agency and have design values certified by an accreditation body that complies with DOC PS 20. In lieu of a grade mark, a certificate of inspection issued by a lumber grading or inspection agency meeting the requirements of this section shall be accepted. A grade mark or certification is not required for owner-occupied construction if the lumber is cut full size and the construction otherwise complies with this code

SECTION AE301. PERMITS [Deleted. J

SECTION AE302. APPLICATION FOR PERMIT

SECTION AE303. PERMIT ISSUANCE

SECTION AE304. FEES

SECTION AE305. INSPECTIONS

[Deleted. J

[Deleted.]

SECTION AE306. SPECIAL INSPECTIONS

SECTION AE307. UTILITY SERVICE. [Deleted,]

[Deleted.]

[Lleleted.]

[Deleted.]

Ordinance No, 201 5 -

Subject: Ruilding Code - To Amend Chapter 203 of the Code afS t Mary's County, Mazylnnd, t o Adopt Local Amendments to the Maryland Ruilding Pcrformancc Standards

Page 16 of 16

SECTION TV. Ord~nance No. 20 12-56 IS repealed

SECTION V. The Director of Land Use and Growth Management or his designee shall forward a copy of the local amendments to the Maryland Department of Housing and Community Development at least 15 prror to the effective date of this amendment.

SECTION V. This Ordinance shall be effective as of the date set forth below.

Those voting Aye: 1 'Those voting ~ a y : 6 Those Abstaining 0 Date of Adoption

Effcctlve Date

ATTEST: COMMISSIONERS OF ST. MARY'S COUNTY

Approved as to form and legal sufficiency,

V

George R. Sparlrng County Attorney

Tom Jarboe, Comrnrssloner

DOCUMENT VALIDATION LR - Gave~nment Er~strument G1. @Q kqertey Name: 54. rnaiy: CD corn Sristrument List: ather Cics r p i be D t her r o rd i rtance RefertincelCont rai g: 0821/918 metro m a i l ------" -------- --_, ..-- -----_.". --__l_-_-----.---- Tot a? : ta.08 P718/28Z5 IE):47

CCIB-TJ P45t34596 CCIa7M - St Mary's C~un ty r 'CC@J .@4 .r;15 - Repi s ter 135

Joan W. Williams, Clerk Circuit Court for St. Mary's County PO Box 676 41605 Courthouse Drive Leonardtown, MD 20650 (301) 475-7844