Vernon Hills — Ch. 5 Art. III One and Two Family Dwelling Code § 5-58

(a) Table R301.2 is amended and approved to read as follows:
Table R301.2. Within the "Climatic and Geographic Design Criteria" table; insert the following design criteria for each category as follows: Ground Snow Load 30 lbs/sq. ft. Wind Design: Wind Speed 115 mph Topographic effects No Special Wind Region No Windborne debris zone No Seismic Design Category B Subject to Damage From: Weathering Severe Frost Line Depth 42" Termite Moderate to Heavy Winter Design Temp. -4 Degrees Fahrenheit Ice Barrier Required Yes Flood Hazards a. NFIP entry: 1972 b. FIRM effective date: September 18, 2013, revised to the latest published edition c. Panels 17097C0251K, 17097C0252K, 17097C0256K 17097C0253K, 17097C0254K. 17097C0258K, 17097C0163K, 17097C0164K Air Freezing Index 1800 BF-Days/100 Years Mean Annual Temp 48 Degrees Fahrenheit
Table R301.2: "Manual J Design Criteria" portion of table: Delete in its entirety. Mechanical contractors shall supply Manual J for the specific project with all HVAC permit applications.
(b) Section R309.6 is created and is approved to read as follows:
R309.6 Opening protection: Openings from a private garage directly into a room used for sleeping purposes shall not be permitted. Other openings between the garage and residence shall be equipped with solid wood doors not less than 1 3/4 inch (44 mm) in thickness, solid or honeycomb core steel doors not less than 1 3/4 inch (44 mm) in thickness or a minimum one-hour fire-rated door.
(c) Section R309.7 is created and is approved to read as follows:
R309.2 Separation required. The garage shall be separated from the residence and its attic area by not less than ⅝-inch (15.9 mm) type X fire-rated gypsum board applied to the garage side. Where the separation is a floor-ceiling assembly, the structure supporting the separation shall also be protected by not less than ⅝-inch (15.9 mm) type X fire-rated gypsum board or equivalent.
(d) Section R311.3 is deleted and in its place is approved to read as follows:
R311.3 Floors and Landings at exterior doors: There shall be a floor or landing on each side of each exterior door. Landings shall have intermediate supports or have structural reinforcement adequate for spanning between the supports. Exterior landings must be supported on wing walls reinforced with 2 - #4 [two #4] bars or a minimum eight-inch (203 mm) wide concrete foundation wall. The width of the landing shall not be less than the door served. Every landing shall have a minimum dimension of 36" in the direction of egress travel. Exception: At the exterior side of sliding doors the floor or landing at a door shall not be more than 7 3/4 inches (196 mm) lower than the top of the threshold.
Exception: The landing at an exterior doorway shall not be more than 7 3/4 inches (196 mm) below the top of the threshold, provided that the door, other than an exterior storm or screen door, does not swing over the landing.
(e) Section R313.1.2 is created and approved to read as follows:
R313.1 Townhouses: Each townhouse shall be considered a separate building/unit and shall be separated by fire-resistive rated assemblies meeting the requirements of section R321.1. Dwelling units shall be separated from each other by a wall and/or floor-ceiling assemblies of not less than 1-hour fire-resistive rating when tested in accordance with ASTM E 119 and constructed of concrete and/or masonry. Fire-resistance rated floor-ceiling and wall assemblies shall extend to and be tight against the exterior wall, and wall assemblies shall extend to the underside of the roof sheathing. Existing townhouse buildings damaged by fire or other causality, where the restoration cost exceeds 50 percent of the current value, shall comply with the fire sprinkler requirement.
(f) Section R313.2.2 is created and approved to read as follows:
R313.2 One and Two family Dwellings: Dwelling units shall be separated from each other by a wall and/or floor-ceiling assemblies of not less than 1-hour fire-resistive rating when tested in accordance with ASTM E 119 and constructed of concrete and/or masonry. Fire-resistance rated floor-ceiling and wall assemblies shall extend to and be tight against the exterior wall, and wall assemblies shall extend to the underside of the roof sheathing. Existing one and two-family dwellings damaged by fire or other causality, where the restoration cost exceeds 50 percent of the current value, shall comply with the fire sprinkler requirement.
(g) Section R317.5 is created and approved to read as follows:
R317.5 Vapor retarder: The vapor retarder shall be six-mil polyethylene lapped not less than six inches (152 mm), Kraft-faced insulation or other approved material.
(h) Section R328 is created and approved to read as follows:
SECTION R328 ACCESSORY STRUCTURES
R328.1 Accessory storage sheds and modular units. Accessory storage sheds (greater than forty (40) square feet in floor area) and modular storage units (forty (40) square feet in floor area or less) erected on residentially zoned property shall be subject to the following conditions: 1.
Number and size. Unless otherwise restricted by a subdivision development agreement, every residentially zoned property shall be limited to one (1) storage shed, with a maximum floor area of 120 square feet, and/or two (2) modular storage units as described herein.
2. Location. Storage Sheds (greater than forty (40) square feet in floor area) shall comply with the provisions set forth in Appendix B--Zoning Ordinance. Modular storage units (forty (40) square feet in floor area or less) may be erected adjacent to the principal dwelling in the side and rear yards only.
3. Anchoring. All storage sheds shall be securely anchored to a concrete pad (4" concrete over 4" compacted gravel, minimum).
4. Permit Required. Any person, firm, corporation or any other entity that plans to erect a storage shed that exceeds forty (40) square feet in floor area, shall obtain a permit and pay a permit fee as specified in Chapter 25 --Comprehensive Fees and Penalties prior to commencing work.
(i) Section R329 is created and approved to read as follows:
SECTION R329 WINDOW WELL COVERS.
R329.1 Window well covers. All window wells shall have a protective cover capable of supporting a 250-pound (113.5 kg.) load, to prevent people and animals from falling into the well. Window well covers for emergency escape and rescue openings shall be installed in accordance with section R310.
(j) Section R330 is created and approved to read as follows:
SECTION 326 SPECIAL ARCHITECTURAL PROVISIONS.
R330.1 Materials: Unless otherwise approved by the Board of Trustees, all structures in the Village of Vernon Hills shall be constructed of high-quality permanent materials designed to be durable, colorfast, and easily maintained. All buildings and structures shall have exterior walls constructed of attractive materials such as, face brick, natural or cultured stone, glass, EFIS, or other approved non-combustible materials. Soffit, fascia and exterior trim work shall be constructed of cedar material. All wood materials shall be primed on all sides prior to installation. Pole barn construction and light steel type buildings are expressly prohibited. Exception: For buildings taller than one story, the exterior materials above the first floor may be of cedar siding, or textured fiber-cement siding in addition to those materials noted above. Other premium materials may be approved for use by the building commissioner. All wood materials shall be primed on all sides prior to installation. Upon application, the board of trustees may modify these provisions to allow for other materials (cedar siding, fiber-cement siding, stucco, etc.) below the 2nd floor.
R330.2 Monotony of residential dwellings: All architectural plans for residences or dwelling units which are not custom built and singly unique in their design to be constructed in any subdivision shall be submitted to the planning and zoning committee for a review and recommendation to the board of trustees. Such plans shall include the plans for models for residences or dwellings commonly referred to as tract or production homes. The board of trustees shall approve all such plans before a building permit shall be issued. In making their recommendation to the board of trustees the planning and zoning committee shall consider such factors as the building(s) appearance, exterior building materials, roof lines, color choices, dwelling unit size and compatibility with surrounding buildings. No single-family detached residence or single-family dwelling unit shall be erected in the village which is of the same or similar design as the dwelling units or residences located on the same side of the street unless there is a minimum separation of six lots between each similar design. The intervening streets shall be disregarded. No residence or dwelling unit shall be erected which would be of the same or similar design as the residence or dwelling unit across the street and within 100 feet (30,480 mm) from it as measured horizontally from property line to property line.
When, in the opinion of the building commissioner, such residences or dwelling units are not of sufficiently dissimilar design, the particular residence or dwelling unit in question shall be varied in elevation and with the use of exterior building materials.
(k) Section R401.2 is deleted and in its place is approved to read as follows:
R401.2 Requirements: Foundation construction shall be capable of accommodating all loads according to section R301 and of transmitting the resulting loads to the supporting soil. Fill soils that support footings and foundations shall be designed, installed and tested in accordance with accepted engineering practice. In any event footings shall not be installed on soils having bearing capacity of less than 3,000 psf (143.7 kN/m 2) without being engineered by a State of Illinois Registered Structural Engineer.
All concrete footings shall be continuous, including changes in foundation elevation.
(l) Section R402.1 Wood foundations is deleted.
(m) Section R403.1 is deleted and in its place is approved to read as follows:
R403.1 General. All exterior walls shall be supported on continuous solid concrete footings or other approved structural systems which shall be of sufficient design to accommodate all loads according to section R301 and to transmit the resulting loads to the soil within the limitations as determined from the character of the soil. Footings shall be supported on undisturbed natural soils or engineered fill. Footings shall not be installed on vegetation or frozen soil.
(n) Section R403.2 Footings for wood foundations is deleted.
(o) Section R404.1.2 is deleted and in its place is approved to read as follows:
R404.1.2 Concrete foundation walls. A minimum of two #4 steel reinforcement bars shall be placed continuously at top and bottom of all concrete foundation walls unless otherwise provided by a structural design.
(p) Section 404.1.6 is deleted and in its place is approved to read as follows:
R404.1.6 Height above finished grade. Concrete foundation walls shall extend above the finished grade adjacent to the foundation at all points a maximum of 12 inches (305 mm) and a minimum of four inches (102 mm) where masonry veneer is involved and a minimum of six inches (152 mm) elsewhere. Where existing conditions warren, the building official may allow less than the minimum prescribed dimension.
(q) Sections R404.1.8 Rubble stone masonry is deleted.
(r) Section R404.2 Wood foundation walls is deleted.
(s) Section R405.1 is deleted and in its place is approved to read as follows:
R405.1 Concrete foundations: Drains shall be provided on the outside of all basement foundations, on the outside of all crawl space foundations, in all window wells, and around all concrete foundations that retain earth. A minimum four-inch (102-mm) diameter perforated drainage pipe or other approved system or materials shall be installed at or below the area to be protected and shall discharge by gravity or mechanical means into the storm sewer or if none is available to a drainage ditch. The perforated pipe shall be placed on a minimum of two inches (51 mm) of washed gravel or crushed rock at least one sieve size larger than the tile joint opening or perforation and be covered with not less than six inches (153 mm) of the same material. The crushed stone fill shall extend a minimum of one foot (305mm) beyond the outside edge of the footing and six inches (153 mm) above the top of the footing and be covered by an approved filter membrane.
Where the water table, topography, building configuration, or other unusual conditions prevail, additional drain tile may be required or additional cross lines, connections or other safeguards against water infiltration into the building may be required by the building commissioner to protect the health, safety or welfare of the occupants. When inside and outside drainage tile systems are utilized, interconnection shall not be permitted.
When a sump pump is not connected to the storm sewer, it shall be discharged at a point located no closer to the abutting property line than one-half the overall distance as measured between the building and the abutting property line. The discharged water shall not be allowed to flow across walking or driving surfaces. When the point of discharge is located within five feet from the abutting property line, the discharge pipe shall be directed to the front or rear of the property. The building commissioner, or their designee, may vary the requirements of this section if warranted by site conditions.
(t) Section R405.2 Wood foundations is deleted.
(u) Section R406.3 Dampproofing for wood foundations is deleted.
(v) Section R408.4 is amended and approved to read as follows:
R408.4 Access: An access opening of 22 inches by 30 inches (558.8 mm by 762 mm) shall be provided to the under-floor space. See section M1305.1.4 for access requirements where mechanical equipment is located under floors.
(w) Section R504 Pressure preservative treated-wood floors (on ground) is deleted.
(x) Section R703.1 is deleted and in its place is approved to read as follows:
R703.1 General. Exterior walls shall provide the building with a weather-resistant exterior wall envelope. The exterior wall envelope shall include flashing as described in section R703.8. The exterior wall envelope shall be designed and constructed in such a manner as to prevent the accumulation of water within the wall assembly by providing a water-resistive barrier behind the exterior veneer as required by section R703.2. Exception: Aluminum and vinyl siding may only be allowed for use on the existing buildings and only in the subdivisions where such materials have already been installed. Except for textured fiber-cement siding, aluminum soffit and fascia, aluminum and vinyl siding shall not be used in the subdivisions where only solid cedar and masonry have been used in original construction.
The use of aluminum and vinyl siding in new construction can be authorized only by the Village of Vernon Hills Board of Trustees.
(y) Table R703.4 is amended and approved to read as follows:
Table R703.4. Under the heading "Nominal Thickness" replace ".035" with ".044" under Vinyl Siding.
Table R703.4. Delete the entire row "Horizontal Aluminum, Without Insulation, 0.019mm Thickness.
(z) Section R801.3 is deleted and in its place is approved to read as follows:
R801.3 Roof drainage/gutters and downspouts: Roofs of all buildings shall have the means of concentrating storm water. Residential downspouts not connected to the storm sewer shall discharge directly onto splash blocks located no closer to the abutting property line than one-half the overall distance as measured between the building and the abutting property line. The discharged water shall not be allowed to flow across walking or driving surfaces. When the point of discharge is located within five feet (1,524 mm) from the abutting property line, the discharge pipe shall be directed to the front or rear of the property. If this cannot be achieved, the downspouts shall be directly connected to a storm sewer. The building commissioner, or their designee, may vary the requirements of this section if warranted by site conditions.
(aa) Section R902.1 is deleted and in its place is approved to read as follows:
R902.1 Roofing covering materials: Roof covering shall be architectural laminated random-tab type shingles (30-year warranty minimum) or wood shakes and comply with the standards and requirements as set forth in sections R904 and R905. Class A roofing shall be installed in areas designated by law as requiring their use or when the edge of the roof is less than three feet (914 mm) from a property line. Class A roofing is required to be listed by this section shall be tested in accordance with UL 790 or ASTM E 108. Roof assemblies with coverings of brick, masonry, slate, clay or concrete roof tile, exposed concrete roof deck, ferrous or copper shingles or sheets, and metal sheets and shingles, shall be considered class A roof coverings. With the approval of the building commissioner, alternative class A roofing materials may be substituted for architectural shingles or wood shakes.
(bb) Section R905.1.2 is deleted and in its place is approved to read as follows:
R905.1.2 Ice protection: An ice barrier that consists of a self-adhering polymer modified bitumen sheet, shall be used in lieu of normal underlayment and extend from the eave's edge to a point at least 24 inches (610 mm) inside the exterior wall line of the building and along all valleys. For cathedral ceilings and for roof slopes less than 4:12, self-adhering polymer modified bitumen sheets shall extend from the eaves edge to the ridge.
(cc) Section R905.2.8.5 is amended and approved to read as follows:
R905.2.8.5 Drip Edge. A drip edge shall be provided at eaves and rake edges of shingle roofs. Adjacent segments of drip edge shall be overlapped not less than 2 inches. Drip edges shall extend not less than ¼" below the roof sheathing and extend up back onto the roof deck not less than 2-⅝". The drip edge shall maintain a minimum of ⅜" clearance from the fascia board. Drip edges shall be mechanically fastened to the roof deck at not more than 12" o.c. with fasteners as specified in section R905.2.5. Underlayment shall be installed over the drip edge along eaves and under the drip edge along rake edges.
(dd) Section R1001.1 is deleted and in its place is approved to read as follows:
R1001.1 General. Masonry fireplaces shall be constructed in accordance with this section and the applicable provisions of chapters 3 and 4. The narrowest portion of a masonry fireplace chimney shall not be less than two-thirds of its widest portion. All attachments to the clay liner, such as rain caps or spark arrestors, shall be black in color.
(ee) Section R1004.1.1 is created and approved to read as follows:
R1004.1.1 Chimney termination enclosure: All factory-built chimneys shall be enclosed in accordance with Section M1801.1.1.
(ff) Section R1005.1.1 is created and approved to read as follows:
R1005.1.1 Chimney termination enclosure: All factory-built chimneys shall be enclosed in accordance with Section M1801.1.1.