What are the main features of composite doors?
The outer skin of Glass Reinforced Polymer is the key to the superior visual appeal of composite doors. We already mentioned the ability of GRP to accept detailed texturing or high glass surface finishes and this feature allows manufacturers to produce wood-grain effects that are stunning.
However, if you want a brand new front door that is super shiny and smooth, then a composite door is also the perfect solution.
Unlike timber, aluminium or uPVC, the door colour is not a surface paint, stain, varnish or foil, the door skin itself is coloured all the way through – i.e. a red composite door is made from red GRP, not painted red. This means you can’t scratch the colour off the surface.
Up to 20 colour options
Some colour options include
- Black-Brown / Cream / White
- Red / Cherry Red
- Chartwell Green/ Dark Green
- Grey / Anthracite Grey / Slate grey
- Dark Blue / Duck-egg blue
- Light wood / Dark Wood
Door Energy Rating Label From BFRC
The Glass Reinforced Polymer skin of the door can take a lot of punishment without degrading. GRP is highly impact and damage resistant and due to the colour going all the way through the skin (if you do manage to scratch them), the scratch will be less visible. The colour is also resistant to fading from exposure to UV light (direct sunlight).
A composite door that is looked after can be expected to last up to 35 years.
Standards that you may see for composite doors are:
- BS 6375: Strength | Weather-proofing | Reliability
- PAS 24:2012: A “PAS 24 compliant” door is related to high security standards.
- CE Mark: Mandatory since 2013 | Water tight | Wind Load | Thermal | Impact resistance | Draught proof | Fit for Purpose
Using a high density insulating foam core adds to the energy efficiency properties of the door and in combination with other features such as thicker doors (44mm), weather seals and double glazing where glass is required, makes composite doors exceptionally energy efficient.
Doors, in the same way as windows, have energy ratings. The ratings are typically supplied by BFRC or BSI and are alphabetical & colour coded for simplicity. Door energy rating labels will show the rating from A (maybe A+ or A++) to G. The A rating is the most efficient.
Basically there are 2 aspects to look at, heat gain (G-value) and heat loss (U-value) and as a general guide, you can aim for a low U-value. The energy rating is also more important if you are fitting a door that is more than 50% glass, as it will need to comply with building regulations – C is the lowest value accepted to meet current building regulations.
Security & Accessability
Multi-point and 3 or 5 lever cylinder locks offer high levels of security. With the door closed and the multi-point locks engaged, the forced entry resistance is so high that it’s as good as impenetrable to all “wanna-be” intruders.
Hooks, Claws & Mushrooms
At the top end of the range for security there are products independently tested for their performance. Once such accreditation is “Secured by Design”. This accreditation is from the Association of Chief Police Officers, and once awarded, is proof that the product has met stringent levels of design security.
For front, back and patio doors, there are low threshold options which can easily accommodate the use of wheelchair access and make it suitable for elderly, infirm or disabled persons.