corrugated fiberglass patio cover wall flashing

#CORRUGATED FIBERGLASS PATIO COVER WALL FLASHING CODE#

Fiberglass shingles to match the existing residence.Western Red Cedar - this material is widely available in my area, and has superior resistance to decay.

Writing these down before I started sketching the design,Īnd drawing my patio cover plans, helped ensure that I would accomplish There were a few features that I wanted to include in my patio coverĭesign. If continuous snow load had been a factor, I would have had to use 2圆 or larger rafters.Īfter calculating my rafter span, I would have exceeded the capacity of my 2x4 rafters if I had spaced them 24' O.C., but spacing them 16' O.C., I was within the range of my design load. I didn't have to worry about snow when drawing my patio cover plans, but my two-layer plywood decking added some 'dead load' to my design.

#CORRUGATED FIBERGLASS PATIO COVER WALL FLASHING CODE#

These can be determined based on the International Building Code and local building codes. Areas in the far northern (and far southern) hemispheres require deeper footings due to frost line factors.

Footings - Soil conditions vary in different locations.

Beams and Posts - Once have the Design load, you can multiply the lbs/ft² by the length and width of the roof to determine the total weight of the roof (live and dead load).

Try selecting the different options for Species and Spacing, etc., and compare the results. You can use the Span Calculator, on the American Wood Council website, to make these calculations.

Rafter Size, Length and Spacing - Once you know the Roof Load and Pitch, you can determine the Sizes, Lengths, and Spacing of rafters, based on the Species and Grade of the lumber being used.

This information can be obtained from the roofing manufacturer.

Roof Slope - The roof needs to have sufficient pitch required for the type of roofing that will be used.

for your area) You can get this information from the International Building Code and from your local building code authorities.

Roof Design Load - This is combination of the dead load (the weight of the framing material) and the live load (additional weight, like snow, etc.

Patio Cover Plans - Design Factors When designing the structure of a patio cover, there are a few factors to be considered: Your design reviewed so that it complies with local building codes and Before beginning construction, contact yourīuilding permitting authorities to obtain a building permit and to have

A structural engineer should determine if yourĮxisting structure is capable of supporting the additional load factors Your local building code should determine theĪctual sizes of concrete footings, slabs, wood structural members, andįasteners to be used. Local building codes can vary significantlyĪmong the regions. If you determine that attaching your patio cover to your roof overhang is not an option, you might consider these new almost-free-standing patio cover plans (available on ). The other half of the weight of the patio cover roof is carried by an outer 4圆 beam, supported by three 6圆 posts. With the rafter tail framing exposed, you might even contact a local carpenter or structural engineer for their advice. If you are planning to do something similar, and you are unsure of the existing framing, you can remove a section of fascia or soffit to examine the underlying structure. Since I was planning to attach my patio cover to the existing roof overhang of my home, I ensured that it was capable of carrying half of the weight of the new patio cover roof. Before I began designing the structure of my new patio cover, I expanded the existing 10' x 10' patio slab by pouring another 10' x 10' slab next to it, making it roughly 10' x 20'.

Corrugated fiberglass patio cover wall flashing