Loft Conversions

Timber joists and beams supplied to avoid steel

Property Repair Systems - where you can talk to real people - 01626 331351

 

 

 

       

Types of Loft Conversion beams and joists that we offer to eliminate heavy steel

1. Existing Joists Ends rotten in the wall only - we supply a Timber Resin Splice Kit with a 45 degree face angle

2. Existing Joists not high enough - we supply machined add-on joist and epoxy resin for fixing

3. Existing Joists too bendy - we supply bars and resins for fitting into a central slot

4. New joists too long to take upstairs - we supply multi part joists, easy to connect once in the loft

5. Ring Beams too heavy - we build to order, in sections, for easy installation

6. Ridge Beam too shallow - we supply laminated add-on with bars inside, to reduce ridge intrusion

Excessive deflection in a Barn Tie Beam - upgraded using Structural Epoxy Pouring ResinLaminated ridgg beam parts for a Foft Conversion designed to upgrade the ridge stiffness

Severe excessive deflection, overloaded. Stiffened, laminated Ridge Beam parts for Loft Conversion.

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1. Rotted Joist End repair in a loft conversion - no ceiling damage

Joist Bearing Ends that have been eaten by Rot or Wood Boring Insects can be repaired using our Timber Resin Splice Kit, Type C45, which uses High Tensile Steel Bars, Zinc Plated Allthread embedded in Structural Epoxy Pouring Resin or Grout.

Joist end repair as part of a Loft ConversionTimber Resin Splice Type C45 for saving ceiling damage.

New timber component in place - note that the bars are now hidden in the slot, within the resin.

Independent Engineering calculation service available from us, from £350 per beam, Indemnified (Insured)

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2. Under sized Joists made taller in a loft conversion - no steel required

Joists that are not tall enough can be added to by using our machined to size joist extension pieces, which are simply bonded on top of the existing joists using our special Thixotropic epoxy Laminating Resin.

Thixotropic Epoxy Laminating Resin - colour coded for easy mixing. Precision fit machined Kiln Dried C24 Joist add on..

Independent Engineering calculation service available from us, from £350 per beam, Indemnified (Insured)

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3. How to increase strength - joists or beams too bendy

Upgrade the Beam or Joist - cut a slot, or slots, along the length to within about 40mm of the base and bond in BS4449 High Tensile Rebar with Structural Epoxy Pouring Grout. This is know as a 'modified flitch' design and approximately doubles the stiffness of a typical timber, in bend.

Excessive bend in a barn tie beamSlot cut into the top of the Tie Beam to hold rebar

Me pointing to the slot with the first rebars dropped in on spacersThe finished upgrade - Structural Epoxy Pouring Resin covering all the rebar

Barn, Somerset - overloaded tie beams in a barn now carrying heavy clay tiles on the roof (had been a thatched roof and then was converted to a lightweight galvanized sheet roof).

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4. New Joists supplied in easy join sections

For more Technical Information and a Photo Gallery go to:www.timber.org.uk

Joists in multi parts for connection inside a loft conversion

Joists machined with connection holes for bars and resin.

Note - in many cases only two or three holes are required for connection.

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5. Ring Beams made to order - no steel, multi part for ease of moving into position

A Ring or Box Beam can be supplied in sections, ready drilled or slotted to connect once installed in the loft.

Timber Resin Splice top slot fixing methodTimber Resin Splice top slotted and then resin filled

Theory and Practice - top slot (Type C) connection extending an existing Ring Beam.

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6. Ridge Beam not strong enough, but no room for the correct depth of timber

We supply either a complete new Ridge Beam in easy tit sections, but with steel inside to reduce the depth (to provide head height) or we supply an upgrade section to fit in place under the existing Ridge Beam, which is fixed in place using bars and resin..

Ridge Beam parts for lamination to fit a loft conversion.Glulam ridge beam for loft conversion.

Decorative Ridge Beam parts, ready to Laminate. Laminated Ridge Beam in Glulam.

For more Technical Information and a Photo Gallery go to:www.timber.org.uk

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Property Repair Systems, Unit 3 Olympus Business Park,

Newton Abbot, Devon, TQ12 2SN

T: 01626 331351

F: 01626 331143

E: Mail us help@propertyrepairsystems.co.uk


Other Property Repair Systems Sites:

www.boron.org.uk - how to use Boron based insecticides/fungicides to treat timber rots and insect attack

www.dampness-info.co.uk - how to treat penetrating dampness in walls and plaster

www.deck-treatment.co.uk - how to treat patio decks and yacht decks

www.dryrot.biz - how to kill Dry Rot in buildings

www.drywallandfloor.co.uk - membranes for lining damp walls, floors, basements and cellars

www.epoxy-info.co.uk - epoxy resins for repairing wood, concrete, brick and stone

www.fire-door-paint.co.uk - upgrade doors to 30 minutes fire resistance

www.joist-repair.co.uk - how to quickly repair joists and beams of any size

www.propertyrepairsystems.co.uk - fire retardant paints, hygiene products, metal bracket manufacture, crack injection

www.steel-fire-paint.co.uk - treat steel with Intumescent Paint to provide fire protection

www.timber.org.uk - systems of repair, with step by step methods

www.woodworm-info.co.uk - how to kill and prevent woodworm and death watch beetle

www.woodworm-expert-advice-forum.org.uk - woodworm prevention and treatment advice