skip to main content

Could you use plexaglas on the flat structure of this roof?

9 years ago

I am interested in adding a deck level with the house. I would love to cover it, but cannot afford to lose the light from the two windows in that area of the house. Could plexiglas be used?

Ojai Trex Deck · More Info

Sort by:Oldest

Comment (1)

PRO
Beyond Decks, Inc.
9 years ago
Hello.
You could use Plexiglas but I recommend using Tempered glass. It is easier to keep clean and Plexiglas will scratch and fog up. The important thing is to make sure it is installed in such a way that I will be waterproof.
The better way to get light through a solid roof is to use a skylight. I recommend using Velux brand. (pictured)
Related Discussions
Flat Roof Balcony Fiasco
Q
Comments (12)
Hi - been there done that! Start again! OK I can see there is enough clearance below the door to allow a decent fall to be created if its not enough already. This can be done using pressure treated timber firings which are essentially lengths of timber cut and tapered to dimensions according to a plan such as my example below (I realise your balcony is much smaller but you should get the idea). My firrings plan and cutting list shows 3 drain points with the firrings mitred to created falls toward relevant drain. Your local timber supplier should be happy to cut these and pressure treat resulting tapered timbers which would be fixed at 300 centres max and would have 20mm min marine plywood screwed on to them at 150mm centres. OSB 3 roofing 'chipboard' which can come in tongue and groove form would also work, I just prefer ply. They need to be planned out so that the fall of the timber firrings sends any water toward the drainage channel (if there isn't one then create one) or to the edge of your balcony where the rainwater gutter will collect it. Then use RESITRIX - we used this supplier, but there are plenty out there.... http://www.rubber4roofs.co.uk/shop/epdm-rubber-roofing which is a much stro nger version of EDPM rubber and can withstand foot traffic as it is reinforced with fabric making it almost like a wet suit - its a fantastic quality product believe me!. You paint on a black primer on to the ply, then peel the backing off the RESITRIX and apply. Be warned - as experienced people (but not exactly specialist roofers) we managed to do this very effectively, but found that extreme care is needed before committing as once the RESITRIX makes contact its sticks forever!! this is especially difficult at internal corners. Only peel back the backing plastic off the RESITRIX rubber a little at a time as you need to hold it up off the deck to ensure it doesn't make contact in wrong place. two pairs of hands can help!!If you have planned the falls correctly so that the water is sent to the drain, you will now have that long awaited water tight balcony! Now Google 'tiles for decks and balconies' and you will find no end of options of special porcelain or ceramic tiles with plastic adjustable feet for each corner of tile which allow you to place the feet and tiles level on top of your RESITRIX flat roof with no risk of penetration pif the rubber. Water goes between the tiles as they are not grouted, just placed on the feet. Not sure if the tiles you have will work without cracking - you could test this by standing on one which is supported only at corners. by the way RESITRIX happens to be one of a range of flat roof solution I have used including Kemper liquid rubber system (which is reinforced by a fleece like fabric which is simply rolled out onto a bed of liquid rubber then soaked on top with more rubber) Messy but effective, a similar process to GRP. Have also used one piece EDPM rubber which a very competent DIY'er can fit. A very economical and speedy solution, but not good for foot traffic - although they are starting to introduce reinforced versions. We are actually going to use slate grey plastic/wood composite decking http://www.wpc-decking.co.uk To do this we will PLACE a new set of firrings on top of the completed rubber deck but also will stick strips of RESITRIX to underside of firings for protection. now we will have a deck that can be lifted for maintenance in future if required. These firrings are the opposite of the ones used to create the falls, which brings the deck back to level of course! In reality we will actually adjust to maintain a slight fall so that, and the gaps in the deck takes water away. A long answer - I hope that it helps! Best of luck! Nick Wall Design + Build 07745581167
...See More
Sloped roof to flat roof
Q
Comments (3)
So many aspects to consider which might affect whether you need planning permission, so always worth checking with a planning officer first. While you may well need PP, I doubt this would be too contentious (unless you are in a conservation area, for example) and could well be under permitted development as you are unlikely to be increasing the volume by much, but it also will depend on whether any of your "permitted development allowance" may have already been used on other extensions. Strongly advise you to get some advice and perhaps get an architect or building surveyor to do some initial outline plans to doscuss with the planning officer. Also, look at other similar houses in your street/area and see if they've done something similar - if they have, chances are you will be allowed also!
...See More
Roof covering for a flat roof kitchen extension?
Q
Comments (3)
Hi Nicola - we used both types and if correctly applied, and the flashings are done properly,. you'll be fine with both. Having said that, its easier to apply a felt roof wrongly than it is to apply a rubber roof. Ask your builder for a cost comparison and check the guarantees for both - I should have stressed that more - do get the roof installed by someone who can give you a guarantee, please! ;-)
...See More
Pitch roof transitioning to flat roof on extension
Q
Comments (3)
At first, my husband and I wanted a one-story house, but our relatively narrow plot did not allow us to build a house of the desired size, so we decided that we could re-equip the loft, thereby increasing the size of the house. We contacted this https://www.roofingassociation.co.uk/ company read all the information on this topic in their manual and used their services. I recommend it to everyone!
...See More

Sponsored

More Discussions

Proposed floor plan help please

66

need advice please!

10

Where does the TV go?!

3

AluSplash splashbacks

4

Desperate for advice to fix front of house

0

United Kingdom

Tailor my experience with cookies

Houzz uses cookies and similar technologies to personalise my experience, serve me relevant content, and improve Houzz products and services. By clicking ‘Accept’ I agree to this, as further described in the Houzz Cookie Policy. I can reject non-essential cookies by clicking ‘Manage Preferences’.