Screening Solutions!

Patio Cover Ideas...


Insulated Panel Systems

Aluminum Flat Pans

Aluminum W Pans

Retractable Awnings

Fixed 'Soft Vinyl' Awning

Steel W Pan Systems

 

================

 

All pricing & information
is subject to change
without notice.

 

================

 

All pricing on this site is in US Flag US Dollars /
Call 1.800.922.4760
to order now!

================

 

Delivery Included!
All pricing includes

delivery to your home, business or cottage in or near most areas in the contiguous USA!

√ Delivery Included!*

√ No Handling Fees

√ No other charges

(*Remote areas subject to a surcharge)  *Click for details

 

=================

We are open...
March 1st - July 31st:
Monday to Friday - 8 to 5 ET
Saturday - 10 to 2 ET
Sunday - Closed
-------------

Aug. 1st
- Feb. 28th:
Mon. to Thurs.: 9 to 4 ET
Friday: 8 to 12 ET
Saturday & Sunday - Closed

=================

Got Questions?
We provide personal service and advice on your selection. Please call us toll free  1.800.922.4760 or
e-mail us with your questions on any of our products, deck size, clearance, installation advice and tips.
 

 

 

 

 

 

 

 

1.800.922.4760

Snow Load Information...

Screen Enclosures|Sheds|Patio Covers|Arbors|Window Awnings|All YOU Do it Yourself!
Our Canadian Canadian Residents WEB Site

Aluminum Patio Covers & Carports

W Pan & Flat Pan Awning Kits

 

 

These patio covers can be used in a variety of applications... at your cottage, on your backyard patio or deck. Our do it yourself kits are the ultimate in strong and durable extruded aluminum, designed for low maintenance and long life.

 

  Follow us on Facebook     Check in with our Blog regularly     Go to our YouTube channel!    |        Screenhouses Unlimited is a BBB Accredited Business. Click for the BBB Business Review of this Screen Enclosures in Barrie ON    |   Home Improvement and Do it Yourself Kits: Screen Enclosures, Backyard Sheds, Outdoor Lighting, Retractable Awnings and many more DIY Kits


Our Represented Manufacturers are... Mason Corporation

Proudly made in U.S. of A.
 

 

 

Previous Page

What you need to know...
 

 


  Insulated Patio Covers Home Page

 

It is our contention that all homeowners should be aware that heavy snow accumulations in your area could pose a potential problem with overloading of roofs. In particular, flat roofs with changes in elevation are vulnerable to snow drifting and thus heavier loading. Also, it is well known that snow that accumulates and remains on a roof over a prolonged period of time tends to both compact and change into a heavier crystalline form. With the accumulation of additional snow, overloading and even failure of the supporting roof structure is possible.

One season we had a wet snow about 12-18 inches deep over the New England states. The first several inches were very wet and became ice quite quickly. With the initial layer of ice plus the subsequent snow falls we soon began to receive calls from customers asking whether they should be concerned about the weight of the snow on their roofs. To address these concerns, you have to first estimate how much the snow weighs, and, secondly, how much weight the roof structure can support.

Snow typically weighs anywhere from 5 to 25 pounds per cubic foot, depending on how wet it is. A one-inch layer of water or ice weighs approximately five pounds per square foot. So a roof designed for a 20-pounds-per-square-foot snow load could theoretically hold up four inches of ice. How much snow is that?

 

Actual snow load calculations are quite complicated. The following is given GENERALLY and to be uses as a guideline only...
 

This calculation is based on a 25% moisture density which is conservative. As a rule, saturated snow weighs about 20 lbs. per cubic foot. The moisture content of snow can range from 1% to 33%, which relates to weights of 1 pound to over 30 pounds per cubic foot.

 

Calculation: S x 1.25 = P where:

S = inches of snow on the roof (depth)

1.25 = Weight of 1 sq. ft. of snow for each 1 inch of depth

P = pounds per square foot

 

Example: If the snow on your roof is 20 inches deep then 20 x 1.25 = 25 lbs. per square foot of load.


Note that this level of loading, 25 pounds per square foot, is not intended to last all winter; there is a fatigue factor. A roof may be able to support this snow load for several days or a few weeks, probably no more than 30 days.

Responsible parties should ensure that roofs are continually monitored during periods of heavy snow accumulations and repeated snow falls. Remember that greater snow accumulations may occur from one storm than from another due to changes in wind velocity and direction.

Additional notes:

  • An unrated system would be able to sustain 30-40 mph winds
  • A 20 psf. rating is roughly equal to a roof being able to sustain 4" of standing water.
  • A 20 psf. rating would be able to sustain 90 mph winds.
  • A 30 psf. rating would be able to sustain 90+ mph winds.
  • A 40 psf. rating would be able to sustain 90+ mph winds.


A light fluffy snowfall will weigh an average of 8 pounds per cubic foot. In order to get up to a 20 psf. snow load rating you could allow 2.5 feet of fluffy snow to fall.

A wet snow fall will weigh an average of 32 pounds per cubic foot. In order to get up to a 20 psf. snow load rating you could allow 8" of wet snow to fall




Note: 3" Roof thickness simply references the thickness of the panel

How to read the table: For example... a 3" thick roof will sustain up to 80lbs/sq.ft. when supported 6' away from the wall

Maximum Panel Simple Span Load Table

Projection

3" Roof Thickness 4" Roof Thickness 6" Roof Thickness
6' 80 lbs./sq. ft.

over - 80 lbs./sq. ft.

over - 80 lbs./sq. ft.

8' 50 lbs./sq. ft. 70 lbs./sq. ft.

over - 80 lbs./sq. ft

10' 30 lbs./sq. ft. 50 lbs./sq. ft. 70 lbs./sq. ft.
12' 20 lbs./sq. ft. 35 lbs./sq. ft. 50 lbs./sq. ft.
14' 10 lbs./sq. ft. 25 lbs./sq. ft. 35 lbs./sq. ft.
16' n/a 15 lbs./sq. ft. 25 lbs./sq. ft.

Our units are pre-engineered roofing systems that have been approved by qualified, state approved engineers in 45 States. Our systems are rated according to 2011 International Building Codes. Snow drifting and wind uplift have not been considered in the wall attached units. If local specifications require such engineering, these standards can be met at an additional cost. Current approved standards assume an importance factor equal to 1 & wind exposure equal to "B". If you require documentation and registered engineering stamps we will submit your request with your quotation. We cannot talk to engineers about such items prior to knowing what it is you require.

Click through the side navigation buttons or click on pictures and other links throughout the site to view our easy to navigate online catalog and photo gallery. You'll see how easy it is to install these sturdy and attractive quality do it yourself kits, and what a great addition they would make to your home. Full Information & Pricing on all products throughout this WEB Site. Enhance your lifestyle with a Do-It-Yourself Kit.

ScreenHouses Unlimited offers you a complete range of
patio covers and carports...
 

**Please check with your permit office before purchasing a building kit. Obtaining necessary permits is the sole responsibility of the purchaser. Customers agree to hold ScreenHouses Unlimited and the manufacturer free of any liability for improper installation, maintenance and repair.

 

 

Compare our manufacturers!

Free Standing Screen Enclosures

Wall Attached|3 Sided Units

Remember - - All pricing includes delivery to your home and prices are in US Dollars US Flag
for delivery to addresses within the US*.

 

 

 

Other related items our customers have purchased...

 

 


Follow us on...

 

Shipping Included!  
*No Silly Fees 
*No other charges    

*Click for details


Related Links...

Follow us on Facebook!         Check out our blog!         Visit our YouTube channel                Screenhouses Unlimited is a BBB Accredited Business. Click for the BBB Business Review of this Screen Enclosures in Barrie ON         Home Improvement and Do it Yourself Kits: Screen Enclosures, Backyard Sheds, Outdoor Lighting, Retractable Awnings and many more DIY Kits

CCR -
Registered for US Department of Defense
Dun & Bradstreet - Duns # 250507720  /  NATO - NCAGE # L1571


Pay by Visa, Mastercard, Paypal or save 5% and pay by cashier's check
OR 5% Discount for Cashier's Check

Welcome to ScreenHouses Unlimited!
For Information or to order CALL (800) 922-4760
Email us anytime!

 Canadian Residents Canadian residents click here for pricing and product availability

*In case of discrepancy or dispute, the WEB site is taken as correct.
Please note: Most of our products are custom made and are not returnable


This WEB Site developed & maintained by: ScreenHouses Unlimited.  Please send all comments from our email page... Copyright 1997-2015 ScreenHouses Unlimited. All rights reserved. 
All pricing & information is subject to change without notice.
All pricing on this site is in US Flag US Dollars / Call 1.800.922.4760 to order now!

Revised: Saturday March 21, 2015.